WO2011092782A1 - 電池モジュール - Google Patents
電池モジュール Download PDFInfo
- Publication number
- WO2011092782A1 WO2011092782A1 PCT/JP2010/007090 JP2010007090W WO2011092782A1 WO 2011092782 A1 WO2011092782 A1 WO 2011092782A1 JP 2010007090 W JP2010007090 W JP 2010007090W WO 2011092782 A1 WO2011092782 A1 WO 2011092782A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- battery module
- battery
- conductive plate
- current collector
- negative electrode
- Prior art date
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/4207—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/441—Methods for charging or discharging for several batteries or cells simultaneously or sequentially
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/507—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising an arrangement of two or more busbars within a container structure, e.g. busbar modules
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
- H01M50/509—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing characterised by the type of connection, e.g. mixed connections
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a battery module in which a plurality of battery packs in which a plurality of battery cells are connected in parallel are further connected in series. More particularly, the present invention relates to a battery module having an improved battery connection method.
- Batteries are starting to be used as power sources for transportation equipment, machine tools, power storage devices, etc., in addition to drive power sources for electrical and electronic equipment. Batteries used for transportation equipment, machine tools, and power storage equipment require instantaneous or continuous high output. An assembled battery in which a plurality of battery cells are connected and a battery module in which such an assembled battery is further connected satisfy such a requirement.
- Patent Document 1 discloses an assembled battery in which a plurality of battery cells are connected in parallel to extract electric power from a lead terminal.
- the connection resistance between the battery cell and the lead terminal having a large temperature rising tendency is made larger than the connection resistance between the battery cell and the lead terminal having a small temperature rising tendency.
- patent document 1 has stated that the dispersion
- Patent Document 2 discloses a control device that controls the temperature of each battery module so that the internal electrical resistance of each battery module becomes equal to a secondary battery body in which battery modules to which a plurality of unit cells are connected are connected in parallel. And a secondary battery system.
- Patent Document 1 and Patent Document 2 are all aimed at suppressing temperature variations that occur between battery cells or battery modules.
- FIG. 13 is a schematic perspective view of a battery module 200 in which six sets of battery packs 10 in which a plurality of cylindrical battery cells 1 are arranged and connected in parallel are arranged in series and connected in series.
- the positive electrodes (+) of the respective cylindrical battery cells 1 of the assembled battery 10 are connected by a positive electrode current collector plate 21, and the negative electrodes ( ⁇ ) are connected by a negative electrode current collector plate 22.
- the assembled battery 10 is connected in series by a plurality of conductive plates 111.
- a positive electrode lead (positive electrode terminal) 12 is connected to a positive electrode current collector plate 21 near the assembled battery 10a, and a negative electrode lead (negative electrode terminal) 13 is connected to a negative electrode current collector plate 22 near the assembled battery 10f.
- the charge / discharge current preferentially passes through the shortest distance (A side) between the positive electrode lead 12 and the negative electrode lead 13.
- the charge / discharge current tends to hardly flow in a region far from the shortest distance between the positive electrode lead 12 and the negative electrode terminal 13.
- the cylindrical battery cell 1a located near the shortest distance between the positive electrode lead 12 and the negative electrode lead 13 among the plurality of cylindrical battery cells 1 is locally used because charge / discharge current passes preferentially.
- the temperature tends to rise.
- the temperature of the cylindrical battery cell 1g that is far from the shortest distance between the positive electrode lead 12 and the negative electrode lead 13, for example, is less likely to rise because the charge / discharge current is relatively difficult to pass through.
- the cylindrical battery cell 1a deteriorates relatively early, when temperature rises locally.
- the temperature rise of the cylindrical battery cell 1g is relatively difficult.
- the electrical resistance of the deteriorated cylindrical battery cells is increased and the Joule heat generated is further increased. Therefore, the deterioration of the cylindrical battery cell, which has started to deteriorate at an early stage, is further promoted.
- the lifetime of the battery module is affected by a cylindrical battery cell having a short lifetime among the plurality of cylindrical battery cells. Therefore, when a specific cylindrical battery cell reaches the end of its life, there is a problem in that the battery module reaches the end of life even if other cylindrical battery cells are in good condition.
- An object of the present invention is to provide a battery module having a long life by suppressing variation in the progress of deterioration between battery cells constituting the battery module.
- One aspect of the present invention is a battery module in which a plurality of sets of assembled batteries in which a plurality of battery cells are connected in parallel are further connected in series, and includes a positive electrode terminal and a negative electrode terminal, and the assembled batteries are connected by a plurality of conductive plates.
- the electrical resistance value in the charge / discharge current direction of the conductive plate arranged at a position close to the virtual line connecting the positive electrode terminal and the negative electrode terminal is high, and the electrical resistance value of the conductive plate arranged at other positions is It is a low battery module.
- the battery module of the present invention has a long life because the progress of deterioration between the battery cells is made uniform.
- FIG. 3 is a schematic side view of the battery module 100.
- FIG. 2 is a schematic top view of a battery module 100.
- FIG. 2 is a schematic bottom view of a battery module 100.
- FIG. It is a perspective schematic diagram of the battery module 110 of 2nd Embodiment. 3 is a schematic bottom view of a battery module 110.
- FIG. It is a perspective schematic diagram of the battery module 130 of 4th Embodiment. 3 is a schematic bottom view of a battery module 130.
- FIG. 3 is a schematic perspective view of a battery module 200.
- FIG. 1st Embodiment. 3 is a schematic side view of the battery module 100.
- FIG. 2
- FIG. 1 is a schematic perspective view showing the configuration of the battery module 100 according to the first embodiment of the present invention.
- 2 is a schematic front view of the front surface of the battery module 100
- FIG. 3 is a top view
- FIG. 4 is a bottom view.
- the battery module 100 is a battery module in which six assembled batteries 10 (10a, 10b, 10c, 10d, 10e, 10f) are connected in series with a plurality of conductive plates 2 (2a, 2b, 2c).
- Each assembled battery 10 includes seven cylindrical battery cells 1 (1a, 1b, 1c, 1d, 1e, 1f, 1g) arranged in a straight line connected in parallel by a positive current collector 21 and a negative current collector 22. ).
- the cylindrical battery cell 1 is a cylindrical battery having a positive electrode (+) at one end in the longitudinal direction and a negative electrode ( ⁇ ) at the other end.
- the positive electrodes (+) and the negative electrodes ( ⁇ ) of the seven cylindrical battery cells 1 are arranged on the same side, and are arranged linearly in an upright state. It is preferable from the point that the battery module can be made compact by arranging the cylindrical battery cells 1 in this way.
- the plurality of cylindrical battery cells 1 arranged in a straight line are preferably fixed by being laminated or mounted on a frame.
- the positive electrodes (+) of the seven cylindrical battery cells 1 of the assembled battery 10 are connected by a positive current collector plate 21, and the negative electrodes ( ⁇ ) are connected by a negative current collector plate 22.
- a positive current collector plate 21 and the negative electrode current collector plate 22 are made of a conductive material.
- the conductive material include metal materials such as stainless steel, titanium, aluminum, aluminum alloy, nickel, copper, and copper alloy.
- the cylindrical battery cell 1 may be a secondary battery or a primary battery.
- the secondary battery include a lithium ion secondary battery, a nickel hydrogen secondary battery, an alkaline secondary storage battery, a lead storage battery, a nickel cadmium secondary battery, and the like.
- Specific examples of the primary battery include a manganese dry battery, an alkaline dry battery, a lithium primary battery, and a silver oxide battery. In these, a secondary battery, especially a lithium ion secondary battery are preferable.
- the assembled batteries 10a to 10f are alternately arranged with positive electrodes (+) and negative electrodes (-). This facilitates connecting the assembled batteries 10a to 10f in series with the conductive plates.
- the conductive plate can be reduced in size. As a result, the external dimensions of the battery module 100 can be reduced. Thereby, the kind of apparatus which can apply the battery module 100 as a power supply can be diversified.
- the row of the assembled battery 10a is the first row
- the row of the assembled battery 10f is the sixth row
- the row of the cylindrical battery cells 1a is the first row
- the row of the cylindrical battery cells 1g is the sixth row.
- the assembled batteries 10a, 10c, and 10e in the first row, the third row, and the fifth row have a positive current collector plate 21 positioned above, and a negative current collector plate 22 Is located below.
- the positive electrode current collector plate 21 is positioned below and the negative electrode current collector plate 22 is positioned above.
- the positive electrode lead (positive electrode terminal) 12 is connected to the positive electrode current collector plate 21 in the vicinity of the cylindrical battery cell 1a in the first row of the assembled battery 10a in the first row, which is the positive electrode side terminal.
- the current path from the positive electrode lead 12 to the cylindrical battery cell 1a is shorter than the current path from the positive electrode lead 12 to the other cylindrical battery cell.
- the negative electrode lead (negative electrode terminal) 13 is connected to the negative electrode current collector plate 22 in the vicinity of the cylindrical battery cell 1a 'in the first row of the assembled battery 10f in the sixth row, which is the negative electrode side terminal. Thereby, the current path from the negative electrode lead 13 to the cylindrical battery cell 1a 'is shorter than the current path from the negative electrode lead 13 to the other cylindrical battery cell.
- the positive electrode lead 12 or the negative electrode lead 13 is made of a conductive material.
- the conductive material include metal materials such as aluminum, aluminum alloy, stainless steel, titanium, iron, nickel, copper, and copper alloy.
- adjacent battery packs 10 are connected in series by connecting a positive current collector 21 and a negative current collector 22 with a plurality of conductive plates 2a, 2b, 2c.
- the conductive plate is a metal piece formed from a conductive material. Specific examples of the conductive material include stainless steel, iron, titanium, aluminum, aluminum alloy, nickel, copper, copper alloy, conductive resin, and the like.
- the positive electrode current collector plate 21 and the negative electrode current collector plate 22 that are adjacent to each other are connected by three kinds of conductive plates 2a, 2b, and 2c having the same thickness and different widths in the plane perpendicular to the current direction.
- the conductive plate 2a is the smallest and the conductive plate 2c is the largest in the area of the top view shape of the conductive plate and the width of the surface perpendicular to the current.
- the electrical resistance between the positive electrode current collector plate 21 and the negative electrode current collector plate 22 is the largest in the path where the conductive plate 2a is disposed, and is the smallest in the path where the conductive plate 2c is disposed.
- the current path along the virtual line is the shortest current path.
- the conductive plate 2a having the smallest contact area with the positive electrode current collector plate 21 and the negative electrode current collector plate 22 along the path close to the imaginary line and the smallest cross-sectional area of the surface orthogonal to the current. Is arranged.
- the conductive plate 2c having the largest contact area with the positive electrode current collector plate 21 and the negative electrode current collector plate 22 and the largest cross-sectional area of the surface orthogonal to the current is disposed on the path farthest from the imaginary line. is doing.
- a conductive plate 2b having an intermediate cross-sectional area of a surface perpendicular to the contact area and current is disposed in the intermediate path.
- the current flowing from the positive electrode lead to the negative electrode lead tends to flow through a shorter path. Specifically, the current tends to flow along a path close to a virtual line connecting the positive electrode lead to the negative electrode lead.
- the conductive plate 2a having the smallest contact area with the positive electrode current collector plate 21 and the negative electrode current collector plate 22 and the cross-sectional area of the orthogonal surface is disposed in a path close to the virtual line, thereby being close to the virtual line.
- the electrical resistance of the path is made larger than the electrical resistance of other paths. Thereby, it is suppressed that an electric current flows into the path
- the cross-sectional area of the surface orthogonal to the contact area and electric current of the electrically conductive plate 2 is large, so that it becomes a path
- the electric resistance value is decreased, so that the current can easily flow in a distant path where the current does not easily flow.
- the amount of current flowing between the plurality of cylindrical battery cells 1 is homogenized, the burden on all the cylindrical battery cells 1 is homogenized, and the variation in the life of each cylindrical battery cell 1 is suppressed. The As a result, the life of the battery module 100 can be extended.
- the method for connecting the conductive plate 2 to the positive current collector 21 or the negative current collector 22 is not particularly limited. Specifically, for example, welding, bonding with a conductive adhesive, bonding with a joining component such as a screw component, and the like can be given. Moreover, a recessed part may be formed in the predetermined position of the surface of the positive electrode current collecting plate 21 or the negative electrode current collecting plate 22, and the conductive plate 2 may be inserted and connected to this recessed part.
- the battery module 1 is usually used by being housed in a casing made of a resin material, a rubber material, a ceramic material, or a metal material, or an outer package of a laminate sheet.
- the assembled battery 10 includes seven cylindrical battery cells, but the number of the cylindrical battery cells is not limited to seven, and may be appropriately adjusted according to the application. Further, in the battery module 100, six sets of assembled batteries are connected in series, but the number of assembled batteries is not limited to six sets, and may be appropriately adjusted according to the application. Furthermore, although the battery cell 1 is a cylindrical tubular battery cell, the shape is not particularly limited, and a square battery or a flat battery may be used.
- the positive electrode current collector plates 21 and the negative electrode current collector plates 22 of the assembled battery 10 are alternately arranged.
- the present invention is not limited to this.
- the positive electrode current collector plates 21 and the negative electrode current collector plates 22 of the assembled battery 10 may be arranged on the same side.
- FIG. 5 is a schematic perspective view showing the configuration of the battery module 110.
- FIG. 6 is a schematic bottom view of the battery module 110. Note that the same reference numerals are used for elements similar to those described in FIGS. 1 to 4 in the first embodiment.
- the battery module 110 is the same as the battery module 100 except that the connection positions of the positive electrode lead and the negative electrode lead are changed and the type of the conductive plate is changed.
- the positive electrode lead 112 is connected to the positive electrode current collector plate 21 in the vicinity of the fourth row of cylindrical battery cells 1d located at the center of the assembled battery 10a in the first row, which is the positive electrode end. ing.
- the negative electrode lead 113 is connected to the negative electrode current collector plate 22 in the vicinity of the cylindrical battery cell 1d ′ in the fourth row of the assembled battery 10f in the sixth column, which is the negative electrode side terminal.
- the current path from the negative electrode lead 113 to the cylindrical battery cell 1d ′ is shorter than the current path from the negative electrode lead 113 to the other cylindrical battery cell.
- adjacent battery packs 10 are connected in series by connecting a positive current collector plate 21 and a negative current collector plate 22 with a plurality of conductive plates 3a and 3b.
- the adjacent positive electrode current collector plate 21 and negative electrode current collector plate 22 are connected by two types of conductive plates 3a and 3b having the same thickness and different widths in the plane perpendicular to the current direction.
- the area of the top view shape of the conductive plate 3a and the width of the surface perpendicular to the current are smaller than those of the conductive plate 3b.
- the conductive plates 3a and 3b are arranged symmetrically with respect to the virtual line.
- the conductive plate 3a having a small contact area with the current collector and a small cross-sectional area of the surface orthogonal to the current is disposed.
- a conductive plate 3b having a large contact area with the current collector plate and a large cross-sectional area of a surface perpendicular to the current is disposed in a path away from the imaginary line.
- the conductive plate 3a is disposed in a path far from the virtual line.
- the conductive plate 3b having a large contact area with the current collector plate and a large cross-sectional area of the surface orthogonal to the current in the path far from the imaginary line, the current can easily flow in the far path where the current does not easily flow.
- the life of the battery module 110 is extended.
- FIG. 7 is a schematic perspective view of the battery module 120
- FIG. 8 is a schematic bottom view. Note that the same reference numerals are used for elements similar to those described in FIGS. 1 to 4 in the first embodiment.
- the battery module 120 is the same as the battery module 100 except that the connection positions of the positive electrode lead and the negative electrode lead are changed and the type of the conductive plate is changed.
- the positive electrode lead 212 is connected to the positive electrode current collector plate 21 in the vicinity of the cylindrical battery cells 1g in the seventh row located at the terminal end of the assembled battery 10a in the first row, which is the positive electrode side terminal. ing. As a result, the current path from the positive electrode lead 212 to the cylindrical battery cell 1g is shorter than the current path from the positive electrode lead 212 to the other cylindrical battery cell.
- the negative electrode lead 213 is connected to the negative electrode current collector plate 22 in the vicinity of the cylindrical battery cell 1a ′ in the first row of the assembled battery 10f in the sixth row, which is the negative electrode side terminal. As a result, the current path from the negative electrode lead 213 to the cylindrical battery cell 1a ′ is shorter than the current path from the negative electrode lead 213 to the other cylindrical battery cell.
- the adjacent assembled batteries 10 are connected in series by connecting a positive current collector plate 21 and a negative current collector plate 22 with a plurality of conductive plates 4a, 4b, and 4c.
- the adjacent positive electrode current collector plate 21 and negative electrode current collector plate 22 are connected by three types of conductive plates 4a, 4b, and 4c having the same thickness and different widths in the plane perpendicular to the current direction.
- the conductive plate 4a has the smallest area and the width of the surface perpendicular to the current of the conductive plate 4a, 4b, 4c as viewed from above, and the conductive plate 4c has the largest width.
- positioned the conductive plate 4a becomes higher than the electrical resistance of the path
- the conductive plates 4a, 4b, and 4c are arranged symmetrically with respect to the virtual line.
- the conductive plate 4a having a small contact area with the current collector and a small cross-sectional area of the surface orthogonal to the current is disposed.
- the conductive plate 4c having the largest contact area with the current collector plate and the largest cross-sectional area of the surface orthogonal to the current is disposed in the path farthest from the imaginary line.
- a conductive plate 4b having an intermediate cross-sectional area of the surface perpendicular to the contact area and current is disposed between them.
- the conductive plate 4a In the battery module 120, the conductive plate 4c is disposed in two paths far from the virtual line. By disposing the conductive plate 4c having a large contact area with the current collector plate and a large cross-sectional area of the surface orthogonal to the current in the path far from the imaginary line, the current can easily flow in the far path where the current does not easily flow.
- the life of the battery module 120 is extended.
- FIG. 9 is a schematic perspective view of the battery module 130
- FIG. 10 is a schematic bottom view. Note that the same reference numerals are used for elements similar to those described in FIGS. 1 to 4 in the first embodiment.
- the battery module 130 is the same as the battery module 100 except that the type of the conductive plate is changed.
- the positive electrode lead 312 is connected to the positive electrode current collector plate 21 in the vicinity of the cylindrical battery cell 1a in the first row of the assembled battery 10a in the first row, which is the positive electrode side terminal.
- the negative electrode lead 313 is connected to the negative electrode current collector plate 22 in the vicinity of the cylindrical battery cell 1a 'in the first row of the assembled battery 10f in the sixth row, which is the negative electrode side terminal.
- the current path from the negative electrode lead 313 to the cylindrical battery cell 1a ' is shorter than the current path from the negative electrode lead 313 to the other cylindrical battery cell.
- the adjacent assembled batteries are connected in series by connecting the positive electrode current collector plate 21 and the negative electrode current collector plate 22 with a plurality of conductive plates 5a, 5b, 5c.
- the positive electrode current collector plate 21 and the negative electrode current collector plate 22 which are adjacent to each other are connected by three kinds of conductive plates 5a, 5b and 5c which are different only in thickness.
- the conductive plates 5a, 5b, 5c have the same shape when viewed from above.
- the conductive plate 5a is the thinnest and the conductive plate 5c is the thickest.
- positioned the conductive plate 5a becomes higher than the electrical resistance of the path
- the shortest path of the current of the battery module 130 is a path on a virtual line.
- the conductive plate 5a having the smallest thickness, that is, the smallest cross-sectional area of the surface orthogonal to the current is disposed in the path near the virtual line.
- the conductive plate 5c having the largest thickness, that is, the largest cross-sectional area of the surface orthogonal to the current is disposed in the path farthest from the imaginary line.
- a conductive plate 5b having an intermediate thickness is disposed in the intermediate path.
- the electric resistance of the shortest path is larger than the electric resistance of the other paths by disposing the conductive plate 5a having the smallest thickness, that is, the smallest cross-sectional area of the surface orthogonal to the current, in the path close to the virtual line. Therefore, it is possible to prevent the current from flowing too much.
- positioned is enlarged so that it is far from a virtual line.
- the life of the battery module 130 is extended.
- FIG. 11 is a schematic perspective view of the battery module 140
- FIG. 12 is a schematic bottom view of the battery module 140. Note that the same reference numerals are used for elements similar to those described in FIGS. 1 to 4 in the first embodiment.
- the battery module 140 is the same as the battery module 100 except that the type of the conductive plate is changed.
- the positive electrode lead 412 is connected to the positive electrode current collector plate 21 in the vicinity of the cylindrical battery cell 1a in the first row of the assembled battery 10a in the first row, which is the positive electrode side terminal. Thereby, the current path from the positive electrode lead 412 to the cylindrical battery cell 1a is shorter than the current path from the positive electrode lead 412 to the other cylindrical battery cell.
- the negative electrode lead 413 is connected to the negative electrode current collector plate 22 in the vicinity of the cylindrical battery cell 1a 'in the first row of the assembled battery 10f in the sixth row, which is the negative electrode side terminal. Thereby, the current path from the negative electrode lead 413 to the cylindrical battery cell 1a 'is shorter than the current path from the negative electrode lead 413 to the other cylindrical battery cell.
- the adjacent assembled batteries are connected in series by connecting a positive current collector 21 and a negative current collector 22 with a plurality of conductive plates 6a, 6b, 6c.
- the adjacent positive electrode current collector plate 21 and negative electrode current collector plate 22 are connected by three types of conductive plates 6a, 6b, and 6c formed of conductive materials having different specific resistances.
- the conductive plates 6a, 6b, and 6c have the same shape and differ only in specific resistance values.
- the specific resistance value is highest for the conductive plate 6a and lowest for the conductive plate 6c.
- the shortest path of the current of the battery module 140 is a path on a virtual line.
- the conductive plate 6a having the highest specific resistance value is arranged in a path near the virtual line.
- the conductive plate 6c having the lowest specific resistance value is disposed on the path farthest from the virtual line.
- a conductive plate 6b having an intermediate specific resistance value is disposed in the intermediate path.
- the battery module 140 is formed so that the specific resistance value of the conductive plate to be arranged becomes smaller as the distance from the virtual line increases. By reducing the specific resistance value of the conductive plate as the distance from the virtual line increases, the current easily flows through a distant path where the current does not easily flow.
- the life of the battery module 140 is extended.
- the battery module described in the present embodiment has a uniform charge / discharge current flowing through a plurality of cylindrical battery cells. As a result, the variation in deterioration between the cylindrical battery cells is reduced, so that the service life is prolonged.
- the battery module of the present invention is used in electric vehicles, hybrid electric vehicles, fuel cell vehicles, plug-in HEV and other transportation equipment, power tools, vacuum cleaners, robots and other machine tools, power storage devices and the like. Further, the battery module of the present invention can be used as a power source for electric devices and electronic devices, and is particularly useful as a power source for portable electronic devices. Examples of portable electronic devices include personal computers, mobile phones, mobile devices, portable information terminals, portable game devices, video cameras, and the like.
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- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
本発明の目的、特徴、局面、および利点は、以下の詳細な説明及び添付する図面により、より明白となる。
図1は、本発明の第1実施形態である電池モジュール100の構成を示す斜視模式図である。また、図2は、電池モジュール100の前面の正面模式図、図3は上面図、図4は底面図である。
本発明に係る電池モジュールの他の形態である電池モジュール110について、図5~図6を参照して説明する。図5は、電池モジュール110の構成を示す斜視模式図である。また、図6は、電池モジュール110の底面模式図である。なお、第1実施形態で図1~図4で説明した要素と同様の要素については同じ参照符号を用いる。
本発明に係る電池モジュールの他の形態である電池モジュール120について、図7及び図8を参照して説明する。図7は電池モジュール120の斜視模式図であり、図8は底面模式図である。なお、第1実施形態で図1~図4で説明した要素と同様の要素については同じ参照符号を用いる。
本発明に係る電池モジュールの他の形態である電池モジュール130について、図9~図10を参照して説明する。図9は電池モジュール130の斜視模式図であり、図10は底面模式図である。なお、第1実施形態で図1~図4で説明した要素と同様の要素については同じ参照符号を用いる。
本発明に係る電池モジュールの他の形態である電池モジュール140について、図11~図12を参照して説明する。図11は電池モジュール140の斜視模式図であり、図12は電池モジュール140の底面模式図である。なお、第1実施形態で図1~図4で説明した要素と同様の要素については同じ参照符号を用いる。
2(2a,2b,2c) 導電板
3(3a,3b) 導電板
4(4a,4b,4c) 導電板
5(5a,5b,5c) 導電板
6(6a,6b,6c) 導電板
111 導電板
10(10a,10b,10c,10d,10e,10f) 組電池
12,112,212,312,412 正極リード
13,113,213,313,413 負極リード
21 正極集電板
22 負極集電板
100,110,120,130,140,200 電池モジュール
Claims (8)
- 複数個の電池セルを並列接続した複数組の組電池をさらに直列接続した電池モジュールであって、
正極端子及び負極端子を備え、
前記組電池同士は複数の導電板により接続されており、
前記正極端子と前記負極端子とを結んだ仮想線に近い位置に配置される前記導電板の充放電電流方向の電気抵抗値が高く、その他の位置に配置される前記導電板の電気抵抗値が低いことを特徴とする電池モジュール。 - 前記仮想線から遠いほど、配置された前記導電板の充放電電流方向の電気抵抗値が低くなっている請求項1に記載の電池モジュール。
- 前記電池セルは筒状電池セルであり、
前記組電池の複数の筒状電池セルの正極は正極集電板で接続され、負極は負極集電板で接続されており、
前記正極端子は前記正極集電板の一つに接続されており、前記負極端子は前記負極集電板の一つに接続されている請求項1に記載の電池モジュール。 - 前記組電池は、複数の前記筒状電池セルが直立した状態で直線状に並べられて並列接続されている請求項3に記載の電池モジュール。
- 前記仮想線から遠いほど、配置された前記導電板の充放電電流方向に垂直な断面の断面積が大きい請求項1に記載の電池モジュール。
- 前記導電板の厚みが同じであり、
前記仮想線から遠いほど、配置された前記導電板の上面視形状の面積が大きい請求項5に記載の電池モジュール。 - 前記導電板の上面視形状の面積が同じであり、
前記仮想線から遠いほど、配置された前記導電板の厚みが大きい請求項5に記載の電池モジュール。 - 前記導電板の形状が同じであり、
前記仮想線から遠いほど、配置された前記導電板の固有抵抗値が小さい請求項5に記載の電池モジュール。
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KR1020117012825A KR101196074B1 (ko) | 2010-01-28 | 2010-12-06 | 전지모듈 |
US13/139,161 US8487631B2 (en) | 2010-01-28 | 2010-12-06 | Battery module |
JP2011511552A JP5210434B2 (ja) | 2010-01-28 | 2010-12-06 | 電池モジュール |
CN201080003628.7A CN102257655B (zh) | 2010-01-28 | 2010-12-06 | 电池模块 |
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US (1) | US8487631B2 (ja) |
EP (1) | EP2381512A4 (ja) |
JP (1) | JP5210434B2 (ja) |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102420303A (zh) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | 电池组件 |
CN102969752A (zh) * | 2012-10-31 | 2013-03-13 | 西安韦德沃德航空科技有限公司 | 一种模块化可充电的供电系统 |
KR20130029982A (ko) * | 2011-09-16 | 2013-03-26 | 에스케이이노베이션 주식회사 | 배터리 모듈의 연결 구조 |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8736273B2 (en) * | 2010-04-15 | 2014-05-27 | Lg Chem, Ltd. | Testing system and method for testing a battery cell |
US8716981B2 (en) | 2011-11-11 | 2014-05-06 | Lg Chem, Ltd. | System and method for cooling and cycling a battery pack |
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US10115943B2 (en) * | 2015-11-02 | 2018-10-30 | Korea Institute Of Energy Research | Battery packing module and battery pack |
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JP6635309B2 (ja) * | 2016-11-17 | 2020-01-22 | トヨタ自動車株式会社 | 組電池 |
US10446809B1 (en) | 2018-09-28 | 2019-10-15 | Daniel Francis Roddy | Portable modular energy storage |
US10573859B2 (en) | 2018-07-03 | 2020-02-25 | Daniel Francis Roddy | Portable modular energy storage |
US10720614B2 (en) | 2018-09-28 | 2020-07-21 | Daniel Francis Roddy | Portable modular energy storage |
CA3130386A1 (en) | 2019-03-14 | 2020-09-17 | Joel Hooper | Battery module thermal management |
EP3800691A1 (en) * | 2019-10-03 | 2021-04-07 | Siemens Aktiengesellschaft | Current collector, battery module with a current collector and usage thereof |
CN111755640A (zh) * | 2020-05-21 | 2020-10-09 | 深圳市炜烨丰电子科技有限公司 | 电池盒组及电池盒组的制造方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01179357U (ja) * | 1988-06-09 | 1989-12-22 | ||
JP2004031255A (ja) | 2002-06-28 | 2004-01-29 | Nissan Motor Co Ltd | 組電池 |
WO2008050953A1 (en) * | 2006-10-23 | 2008-05-02 | Lg Chem, Ltd. | Equal distribution-typed connecting member, and middle or large-sized battery pack employed with the same |
JP2008109841A (ja) | 2006-09-25 | 2008-05-08 | Tokyo Electric Power Co Inc:The | 2次電池システム |
JP2008287992A (ja) * | 2007-05-16 | 2008-11-27 | Sony Corp | バッテリパック |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01179357A (ja) | 1988-01-04 | 1989-07-17 | Toshiba Corp | 半導体装置の製造方法 |
JP3635995B2 (ja) * | 1999-08-26 | 2005-04-06 | 新神戸電機株式会社 | 組電池 |
JP4966479B2 (ja) * | 2001-10-11 | 2012-07-04 | デノヴォ リサーチ エルエルシー | デジタル電池 |
JP2008153150A (ja) * | 2006-12-20 | 2008-07-03 | Daiwa House Ind Co Ltd | 並列組電池 |
JP5200420B2 (ja) * | 2007-05-16 | 2013-06-05 | ソニー株式会社 | バッテリパック |
JP5459319B2 (ja) * | 2009-12-17 | 2014-04-02 | トヨタ自動車株式会社 | 車両システム及び硫化水素検知方法 |
-
2010
- 2010-12-06 KR KR1020117012825A patent/KR101196074B1/ko active IP Right Grant
- 2010-12-06 EP EP10830931.1A patent/EP2381512A4/en not_active Withdrawn
- 2010-12-06 CN CN201080003628.7A patent/CN102257655B/zh active Active
- 2010-12-06 JP JP2011511552A patent/JP5210434B2/ja active Active
- 2010-12-06 WO PCT/JP2010/007090 patent/WO2011092782A1/ja active Application Filing
- 2010-12-06 US US13/139,161 patent/US8487631B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01179357U (ja) * | 1988-06-09 | 1989-12-22 | ||
JP2004031255A (ja) | 2002-06-28 | 2004-01-29 | Nissan Motor Co Ltd | 組電池 |
JP2008109841A (ja) | 2006-09-25 | 2008-05-08 | Tokyo Electric Power Co Inc:The | 2次電池システム |
WO2008050953A1 (en) * | 2006-10-23 | 2008-05-02 | Lg Chem, Ltd. | Equal distribution-typed connecting member, and middle or large-sized battery pack employed with the same |
JP2008287992A (ja) * | 2007-05-16 | 2008-11-27 | Sony Corp | バッテリパック |
Non-Patent Citations (1)
Title |
---|
See also references of EP2381512A4 |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5662578B2 (ja) * | 2011-08-05 | 2015-02-04 | パナソニックIpマネジメント株式会社 | 電子機器 |
KR20130029982A (ko) * | 2011-09-16 | 2013-03-26 | 에스케이이노베이션 주식회사 | 배터리 모듈의 연결 구조 |
KR101891481B1 (ko) | 2011-09-16 | 2018-08-24 | 에스케이이노베이션 주식회사 | 배터리 모듈의 연결 구조 |
CN102420303A (zh) * | 2011-12-02 | 2012-04-18 | 苏州冠硕新能源有限公司 | 电池组件 |
CN102969752A (zh) * | 2012-10-31 | 2013-03-13 | 西安韦德沃德航空科技有限公司 | 一种模块化可充电的供电系统 |
JP2014117068A (ja) * | 2012-12-10 | 2014-06-26 | Denso Corp | 電池システム |
WO2018139350A1 (ja) * | 2017-01-30 | 2018-08-02 | 三洋電機株式会社 | 電源装置 |
JP2019186001A (ja) * | 2018-04-09 | 2019-10-24 | 矢崎総業株式会社 | バスバーモジュール、電池モジュール、電池パック及び電池セル接続方法 |
JP7044614B2 (ja) | 2018-04-09 | 2022-03-30 | 矢崎総業株式会社 | バスバーモジュール、電池モジュール、電池パック及び電池セル接続方法 |
JP7566139B2 (ja) | 2020-12-28 | 2024-10-11 | エルジー エナジー ソリューション リミテッド | 多並列バッテリーセルを含むバッテリーモジュール |
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KR20110103389A (ko) | 2011-09-20 |
CN102257655A (zh) | 2011-11-23 |
KR101196074B1 (ko) | 2012-11-01 |
JP5210434B2 (ja) | 2013-06-12 |
US8487631B2 (en) | 2013-07-16 |
JPWO2011092782A1 (ja) | 2013-05-30 |
CN102257655B (zh) | 2014-05-14 |
EP2381512A1 (en) | 2011-10-26 |
EP2381512A4 (en) | 2016-11-16 |
US20120013340A1 (en) | 2012-01-19 |
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