KR102122930B1 - Battery module and battery pack having the same - Google Patents

Abstract

In the present invention, fixing portions are formed on both sides of a battery module, and an electrode terminal, a voltage sensing terminal, and a connector are formed on one side, so that a plurality of battery modules are stacked to easily configure a battery pack, and serial or parallel connection of electrode terminals is easy. The present invention relates to a battery module that is easy to connect a voltage sensing line and a temperature sensing line and a battery pack including the same.

Description

Battery module and battery pack including same {Battery module and battery pack having the same}

The present invention relates to a battery module and a battery pack including the same, which can easily configure the battery pack by stacking a plurality of battery modules.

In general, secondary batteries, unlike primary batteries, can be charged and discharged, so they are applied to various fields such as digital cameras, cell phones, laptops, and hybrid cars, and active research is underway. Examples of the secondary battery include a nickel-cadmium battery, a nickel-metal hydride battery, a nickel-hydrogen battery, and a lithium secondary battery. And among secondary batteries, many studies have been conducted on lithium secondary batteries having high energy density and discharge voltage, and they are commercially used and widely used.

In addition, the lithium secondary battery can be manufactured in various forms. Representative shapes include a cylindrical type and a prismatic type, which are mainly used in lithium ion batteries. It is manufactured in a pouch type, so its shape is relatively free.

These pouch-type lithium polymer batteries (hereinafter referred to as "pouch-type cells") can be easily bent or bent, so they are formed to reinforce the low rigidity of the pouch-shaped cells by combining a sturdy case on the outside. Therefore, it is configured in the form of a battery module or battery pack in which a plurality of pouch-shaped cells are stacked.

At this time, the battery module is configured such that a plurality of battery cells are accommodated and electrically connected, and the plurality of battery modules are stacked and electrically connected, and sensing lines for voltage and temperature sensing of each battery cell are connected.

However, in the configuration of the battery module and the battery pack, since a plurality of battery cells or battery modules must be combined and electrically connected, the configuration of the battery module and the battery pack is complicated.

A related art is disclosed in US Patent Publication (20120183820) "POWER SWITCHING MODULE FOR BATTERY MODULE ASSEMBLY".

US 20120183820 A1 (2012.07.19.)

The present invention has been devised to solve the above-described problems, and the object of the present invention is to easily construct a battery pack by stacking a plurality of battery modules, and connect the electrode terminals in series or in parallel, and a voltage sensing line and a temperature sensor. It is to provide a battery module for easy connection.

In addition, when connecting the terminals and the connectors of the battery modules with a voltage sensing line, the voltage sensing line and the temperature sensing by using a pin not connected to the voltage sensing line to the connector of some battery modules to be used as a temperature sensor connection line It is to provide a battery pack with easy line configuration.

The battery module of the present invention for achieving the above object includes a battery cell, a unit module in which a plurality of terminals are formed on one side; Fixing parts formed on both sides of the unit module; And a connector coupled to one side of the unit module. It includes.

In addition, the unit module, electrode tabs are formed on one side, two battery cells are stacked next to each other; A case in which both sides are formed to be open and the battery cells are accommodated therein; A lower cap coupled to an open side of the case and coupled to an opposite side where the electrode tabs are located; A connection mold in which a plurality of terminals are formed on one side and are inserted between opposite electrode tabs of the two battery cells to connect the terminals to the electrode tabs; And an upper cap coupled to the other open side of the case where the lower cap is coupled, and an incision formed to expose terminals of the connection mold to the outside. It includes.

In addition, fixing portions are formed on the lower cap and the upper cap, respectively, and a connector is coupled to one side of the upper cap.

In addition, the two battery cells are stacked so that the positive electrode tab and the negative electrode tab face each other, the terminal includes a positive electrode terminal, a negative electrode terminal and a voltage sensing terminal, and the positive electrode terminal is connected to the positive electrode tab of the first battery cell, The negative terminal is connected to the negative tab of the second battery cell, and the voltage sensing terminal is connected to the negative tab of the first battery cell and the positive tab of the second battery cell.

And the battery pack of the present invention, the battery module is a plurality of stacked side by side; A base frame to which the fixing portions of the battery modules are coupled; And a pair of side plates in close contact with the outermost portions of the battery modules and coupled to the base frame. It includes.

In addition, the battery modules are connected in series or in parallel, further comprising a voltage sensing line connecting the terminals and the connector.

In addition, the positive electrode terminal and the negative electrode terminal of the battery modules are formed on the fixed portion side, and the voltage sensing terminal and the connector are formed on the opposite side of the fixed portion.

In addition, the battery modules are connected in series or in parallel, further comprising a voltage sensing line connecting the terminals and the connector.

In addition, among the battery modules, the battery module disposed at the outermost and the battery module disposed at the odd-numbered number based on the outermost battery module on one side, the positive terminal, the negative terminal, and the voltage sensing terminal are respectively connected to the connector as a voltage sensing line. The battery modules arranged in even-numbered cells are connected to a voltage sensing terminal by a voltage sensing line.

In addition, the connector is formed of three or more pins, the battery module is provided with a temperature sensor, the connector pin of the battery module disposed in the even number is connected to the temperature sensor.
In addition, a plurality of battery cells are accommodated therein, a unit module in which a plurality of terminals are formed on one side; Fixing parts formed on both sides of the unit module; And a connector coupled to one side of the unit module. In the battery module comprising a, the unit module, a plurality of battery cells are stacked side by side with each other, the positive electrode tab and the negative electrode tab are disposed to face one side; A case in which both sides are formed to be open and the battery cells are accommodated therein; A lower cap coupled to an open side of the case and coupled to opposite sides of the positive and negative tabs; A plurality of terminals are formed, and a positive electrode tab and a negative electrode tab of the plurality of battery cells are inserted and connected to the terminals; And an upper cap coupled to the other open side of the case on the opposite side of the lower cap, wherein an incision is formed so that terminals of the connection mold are exposed to the outside. It characterized in that it comprises a.
In addition, a plurality of battery cells are accommodated therein, a unit module in which a plurality of terminals are formed on one side; Fixing parts formed on both sides of the unit module; And a connector coupled to one side of the unit module. In the battery module comprising a, the unit module is stacked side by side with each other, the positive electrode tab and the negative electrode tab are both disposed to face one side, the plurality of positive electrode tabs and the negative electrode tabs facing each other are disposed spaced apart from each other. Battery cells; A case in which both sides are formed to be open and the battery cells are accommodated therein; A lower cap coupled to an open side of the case and coupled to opposite sides of the positive and negative tabs; A plurality of terminals are formed, and when the anode tab and the cathode tab are spaced apart from each other, a connection mold is connected to the anode tab and the cathode tab to a corresponding terminal; And the upper cap is coupled to the other side of the open case of the opposite side of the lower cap, the incision is formed so that the terminals of the connection mold is exposed to the outside; Including, the terminal includes an anode terminal, a cathode terminal and a voltage sensing terminal, the anode terminal and the cathode terminal are formed to be bent in one side and the other side from the upper surface of the connection mold, respectively, the voltage sensing terminal It is characterized in that it is bent from one side and the other side from the upper surface of the connection mold.

The battery module of the present invention and the battery pack including the same have the advantages of stacking a plurality of battery modules to facilitate the construction of the battery pack and to easily connect the terminal terminals in series or parallel and to connect the voltage sensing line and the temperature sensor.

In addition, in connecting the terminals and the connector with a voltage sensing line, the connector of some battery modules can be used as a temperature sensor connection line using a pin that is not connected to the voltage sensing line, so that the configuration of the voltage sensing line and the temperature sensing line There is an easy advantage.

1 is a perspective view showing a battery cell according to an embodiment of the present invention.
2 and 3 is an exploded perspective view and an assembly perspective view showing a battery module according to an embodiment of the present invention.
4 and 5 are AA', BB', CC', and DD' cross-sectional views of FIG. 3.
6 and 7 is an exploded perspective view and an assembled perspective view showing a battery pack according to an embodiment of the present invention.
8 to 11 are schematic diagrams showing a configuration in which a voltage sensing line and a temperature sensing line are connected in a battery pack according to an embodiment of the present invention.

Hereinafter, a battery module of the present invention as described above and a battery pack including the same will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a battery cell according to an embodiment of the present invention, Figures 2 and 3 is an exploded perspective view and an assembly perspective view showing a battery module according to an embodiment of the present invention.

As illustrated, the battery module 1000 of the present invention includes a battery cell 100, a unit module 200 in which a plurality of terminals 510 are formed on one side; Fixing parts (410,620) formed on both sides of the unit module 200; And a connector 700 coupled to one side of the unit module 200. It includes.

First, the unit module 200 includes a battery cell 100 in which electricity is charged and discharged, and a plurality of terminals 510 are formed on one side. In addition, fixing portions 410 and 620 are formed on both sides of the unit module 200, and fixing portions 410 and 620 may be formed such that brackets having through holes protrude to both sides to support the brackets by reinforcing ribs. In addition, the connector 700 is formed on one side of the unit module 200, so that the terminals 510 and the connector 700 are formed on one side of the unit module 200.

Thus, the battery module of the present invention is easy to fix by stacking a plurality of battery modules because the fixing portion is formed, and since terminals and connectors are formed on one side of the battery module, it is easy to connect the battery modules in series or in parallel and the voltage of each battery cell. The connection of the voltage sensing line for measurement can be facilitated.

And the unit module 200, electrode tabs 120 are formed on one side, two battery cells 100 are stacked side by side with each other; Cases 300 are formed so that both sides are open to accommodate the battery cells 100 therein; A lower cap 400 coupled to one open side of the case 300 and coupled to the opposite side where the electrode tabs 120 are located; A plurality of terminals 510 are formed on one side, and are inserted between opposite electrode tabs 120 of the two battery cells 100 so that the terminals 510 are connected to the electrode tabs 120. 500); And the upper cap 600 is coupled to the other side of the opening of the case 300 to which the lower cap 400 is coupled, the incision 610 is formed so that the terminals 510 of the connection mold 500 are exposed to the outside ); It includes.

This is the unit module 200 is accommodated in a state in which two battery cells 100 are stacked inside the case 300, and the two battery cells 100 are connected in series by a connection mold 500 in which a terminal 510 is formed. Or connected in parallel, the lower cap 400 and the upper cap 600 is configured to be coupled to both sides of the open case 300.

At this time, the battery cell 100, as shown in Figure 1, the electrode tab 120 is formed on one side of the electrode body 110, the electrode body 110 is a separator separating the positive electrode, the negative electrode, the electrolyte and the positive electrode and the negative electrode It is configured to be charged and discharged electricity, and the electrode tab 120 is a portion that transmits a current generated when discharged from the electrode body 110 or introduced when charged from the outside. In addition, the battery cell 100 may be a pouch-type cell enclosed by a pouch 130 or an external member coupled to the outside of the pouch-shaped cell, and the electrode body 110 sealed by the pouch 130 may be a pouch. The center 130 may protrude from only one side, or may protrude from both sides.

In addition, as shown in Figure 2, the two battery cells 100 are stacked side by side so that the electrode tabs 120 face each other, and when the electrode body 110 is protruding to one side of the pouch 130, the electrode body The protruding sides of the two battery cells 100 may be stacked so that the protruding sides of 110 are in contact with each other so that the pouch 130 of the two battery cells 100 is positioned outside the width direction. That is, the battery cells 100 are stacked so that the electrode tabs 120 of the two battery cells 100 do not contact each other and are spaced a predetermined distance.

Referring to FIG. 3, the case 300 is formed such that both sides thereof are opened so that two battery cells 100 in a stacked state are inserted into the case 300 to be accommodated. The case 300 may be formed of a thin metal plate having a thickness of 0.1 mm to 1.0 mm, and a plurality of grooves (grooves) recessed inward or a central portion of both sides in the width direction may be formed. Two battery cells 100 accommodated in the case 300 may be in close contact.

The lower cap 400 may be formed in a shape in which the inside is hollow and the upper side is opened, and when two battery cells 100 are inserted inside the case 300, electrode tabs of the battery cells 100 ( 120) is coupled to the open portion of the case 300 on the opposite side they are located. That is, the lower cap 400 is formed in a cap type and is coupled such that the open lower side of the case 300 is inserted into the hollow inside of the lower cap 400, so that the lower side of the case 300 is sealed.

Here, a connection mold 500 in which a plurality of terminals 510 are formed is inserted between two facing electrode tabs 120 of two battery cells 100, and in the inserted state, the terminals 510 are electrode tabs 120 It is electrically connected by welding with the field. That is, since the connection mold 500 is inserted between the opposite electrode tabs 120 of the two battery cells 100 and supports the inside, the electrode tab 120 is moved from the side to the width direction of the connection mold 500. After pressing, it is easy to weld with the terminals 510 and serves to fix the terminals 510 connected to the electrode tab 120. In addition, before the connection mold 500 is inserted, the connection mold 500 may be inserted and fixed between the two battery cells 100 after applying a hot melt or an adhesive.

In addition, the upper cap 600 is coupled to the upper side after the connection mold 500 is inserted and combined, and is formed so that the inside is hollow and the lower side is opened, so that it can be inserted and coupled to the outside of the case 300. At this time, the cutout portion 610 is formed so that the terminals 510 of the connection mold 500 are exposed to the outside, and then the terminals 510 are configured to be connected to the external circuit after the upper cap 600 is combined.

Thus, in the battery module according to an embodiment of the present invention, since the battery cells are firmly fixed inside the case, safety is improved, and since the battery cells are fixed in a compact case, space utilization can be improved, and electrode tabs of the battery cells are provided. It is formed in a structure that is easy to connect electrically, so it is easy to assemble in a module form.

At this time, fixing portions 410 and 620 are formed on the lower cap 400 and the upper cap 600, respectively, and a connector 700 may be coupled to one side of the upper cap 600. That is, the fixing portions 410 and 620 are formed on the lower cap 400 and the upper cap 600, which are both sides of the battery module 1000, respectively, so that the lower cap 400 and the upper cap 600 are formed through injection molding. The fixing parts 410 and 620 may be formed to be integrally formed. In addition, the upper cap 600 may be coupled to the connector 700 so that the connector 700 can be coupled to facilitate coupling of the connector 700.

Here, the two battery cells 100 are stacked so that the positive electrode tab 120a and the negative electrode tab 120b face each other, and the terminal 510 has a positive electrode terminal 511, a negative electrode terminal 512, and a voltage sensing terminal. (513), the positive electrode terminal 511 is connected to the positive electrode tab (120a) of the first battery cell (100a), the negative electrode terminal (512) is a negative electrode tab (120b) of the second battery cell (100b) ), and the voltage sensing terminal 513 may be connected to the negative electrode tab 120b of the first battery cell 100a and the positive electrode tab 120a of the second battery cell 100b.

This is stacked so that the electrode tabs 120 having different polarities of the battery cells 100 face each other to connect the two battery cells 100 in series as shown in FIGS. 1 and 2, as shown in FIG. 4(a). The positive electrode tab (120a) of the first battery cell (100a) and the negative electrode tab (120b) of the second battery cell (100b) are coupled to be connected by a voltage sensing terminal (513), as shown in FIG. The negative electrode tab 120b of 100a) is connected to the negative electrode terminal 512 and the positive electrode tab 120a of the second battery cell 100b is connected to the positive electrode terminal 511. Here, since the two battery cells 100 are stacked so that the electrode tabs 120 of different polarities face each other, the positive electrode terminal 511 and the negative electrode terminal 512 are formed on one side in the longitudinal direction of the connection mold 500, The voltage sensing terminal 513 is preferably formed on the other side in the longitudinal direction.

Thus, the two battery cells 100 are connected in series so that the positive terminal 511 and the negative terminal 512 are output terminals connected to an external circuit, and the voltage sensing terminal 513 is the positive terminal 511 and the negative terminal. It can be configured to measure the voltage of each battery cell (100a, 100b) is connected to each through a separate protection circuit with (512).

At this time, as shown in Figures 4 and 5, the positive electrode terminal 511 is formed by bending from one side to the upper surface of the connection mold 500, and the negative electrode terminal 512 is formed by bending from the top surface of the connection mold 500 to the other side. And, the voltage sensing terminal 513 may be bent from the upper surface of the connection mold 500 to both sides. This is a configuration in which the terminals 510 are easily coupled to the electrode tabs 120 by welding when the two battery cells 100 are connected in series, and the terminals 510 and the electrode tab 120 are welded in an overlapped state. By forming the terminals 510 formed on the upper surface of the connection mold 500 in a bent form so as to be coupled by, the terminals are formed to extend in the width direction side of the connection mold 500. That is, the negative electrode terminal 512 is formed to be bent in the form of an a letter toward the negative electrode tab 120b of the first battery cell 100a, and the positive electrode terminal 511 is a letter toward the positive electrode tab 120a of the second battery cell 100b. Bending is formed in the form, the voltage sensing terminal 513 is bent in a U-shaped toward the positive electrode tab (120a) of the first battery cell (100a) and the negative electrode tab (120b) of the second battery cell (100b).

In addition, the battery pack 2000 including the battery module 1000 according to an embodiment of the present invention includes a battery module 1000 in which a plurality of cells are stacked side by side; A base frame 1100 to which the fixing parts 410 and 620 of the battery modules 1000 are coupled; And a pair of side plates 1200 in close contact with the outermost portions of the battery modules 1000 and coupled to the base frame 1100. It includes.

6 and 7, the plurality of battery modules 1000 having fixing portions 410 and 620 formed on both sides are fixed and stacked side by side on the base frame 1100, so that the outside of the battery modules 1000 disposed on the outermost side The side plate 1200 is in close contact with the base frame 1100 to form the battery pack 2000.

Thus, the battery pack of the present invention is easy to configure a battery pack by stacking a plurality of battery modules, and the terminals and connectors of the battery modules are arranged on one side of the battery pack, so that the electrode terminals are connected in series or in parallel and each battery cell. There is an advantage in that the configuration of the voltage sensing line for measuring the voltage of the easy.

In addition, the battery modules 1000 are connected in series or in parallel, and further include a voltage sensing line 1300 connecting the terminals 510 and the connector 700. That is, a plurality of battery modules 1000 are stacked and fixed, and the bus bar 800 is coupled to the positive terminal 511 and the negative terminal 512 so that the battery modules 1000 are connected in series or parallel, respectively. The battery modules 1000 of the terminals 510 and the connector 700 may be configured to be connected to the voltage sensing line 1300 to measure the voltage of each battery cell 100.

In addition, in the battery pack 2000 in which the battery modules 1000 in which two battery cells 100 included therein are connected in series are stacked, the positive electrode terminal 511 and the negative electrode terminal of the battery modules 1000 are provided. 512 is formed on the fixing portion 620 side, the voltage sensing terminal 513 and the connector 700 may be formed on the opposite side of the fixing portion 620.

This allows the fixing portion 620 to be formed on the lower side where the positive terminal 511 and the negative terminal 512 of the battery module 1000 are formed, as shown in FIG. 7, so that the fixing portion 620 is easily coupled to the base frame 1100. It is to connect the positive terminal 511 and the negative terminal 512 of the plurality of battery modules 1000 to the bus bar 800 to facilitate serial or parallel connection. In addition, the voltage sensing terminal 513 and the connector 700 may be formed on opposite sides to facilitate connection of the voltage sensing terminal 513 and the connector 700.

In addition, the battery modules 1000 may be connected in series or in parallel, and may further include a voltage sensing line 1300 connecting the terminals 510 and the connector 700. That is, as shown in FIGS. 8 and 9, the positive terminal 511 and the negative terminal 512 of the battery modules 1000 are connected in series using a bus bar 800 to connect the voltage sensing line 1300 to each. It may be configured to measure the voltage of the battery cells 100. Also, as shown in FIG. 10, a plurality of battery modules 1000 may be configured to be connected in parallel.

Here, the battery module 1000 disposed at the outermost of the battery modules 1000 and the outermost battery module 1000 on one side of the battery module 1000, the positive terminal 511 , The negative electrode terminal 512 and the voltage sensing terminal 513 are respectively connected to the connector 700 by a voltage sensing line 1300, and the battery module 1000 disposed in the even number has a voltage sensing terminal 513 connected to the connector ( 700) may be connected to the voltage sensing line 1300.

This may be configured such that all of the battery modules 1000 are connected to the positive electrode terminal 511, the negative electrode terminal 512, and the voltage sensing terminal 513 by a voltage sensing line 1300 to the connector 700, respectively. As described above, the battery modules 1000 arranged in even numbers based on the outermost battery module 1000 on one side are connected to the connector 700 so that only the voltage sensing terminal 513 is connected to each battery module 1000. (700) can be used, so that the connector pin 710 of the even number of the battery module (1000) to allow.

Thus, the connector pin 710 remaining unconnected of the connector 700 may be used for connecting a temperature sensor or various sensors.

In this case, the outermost battery modules 1000 and the odd-numbered battery modules 1000 are respectively connected with a positive electrode terminal 511 and a voltage sensing terminal 513, a negative electrode terminal 512 and a voltage sensing terminal 513 connected to the connector pin ( 710) can be connected to measure the voltages of the two battery cells 100, respectively, and the even numbered battery modules 1000 are each battery cell 100 measured in the battery modules 1000 disposed on the left and right sides. The voltage can be measured using the voltage value of.

That is, the connector pin 710 connected to the voltage sensing terminal 513 of the even-numbered battery module 1000 and the connector pin 710 connected to the positive terminal 511 of the left battery module 1000 are connected to connect the voltage. When measuring, the voltages of the two battery cells 100 of the left battery module 1000 can be measured, so that the voltage value of one battery cell 100 of the even-numbered battery module 1000 can be calculated. Similarly, the connector pin 710 connected to the voltage sensing terminal 513 of the even-numbered battery module 1000 and the connector pin 710 connected to the negative terminal 511 of the right battery module 1000 are connected to measure the voltage. Then, as described above, the other battery cell 100 can also calculate the voltage value.

In addition, the connector 700 is formed of three or more pins, the battery module 1000 is provided with a temperature sensor 1400, the connector pin of the battery module 1000 disposed in the even number is not connected 710 may be connected to the temperature sensor 1400.

That is, when the connector 700 is formed of three pins, the temperature sensor 1400 is installed on the battery module 1000 and two connector pins 710 that are not connected to the connector 700 of the even-numbered battery module 1000. It may be configured to be connected to the temperature sensing line 1500 to be connected to the temperature sensor (1400). In addition, when the connector pin 710 is formed of 3 or more pins, for example, when the connector pin 710 is formed of 5 pins, the 3 pins may be connected to the voltage sensing line 1300 and the other 2 pins may be connected to the temperature sensing line. have. At this time, when the connector 700 is formed of three pins, the size of the connector 700 can be reduced, thereby reducing the volume of the battery pack, and reducing the number of remaining connector pins, thereby reducing manufacturing cost.

Thus, since it is not necessary to form a separate connector 700 or connector pin 710 to which the temperature sensor 1400 can be connected, there is an advantage of simplifying the configuration of the connector 700.

Here, as shown in FIG. 11(a), the number of the battery modules 1000 is configured to be odd, and only one connector pin 710 is used to connect the voltage sensing line 1300 to the even battery module 1000, The other two connector pins 710 may be used to connect the temperature sensing line 1500 to install the temperature sensor 1400 on the even-numbered battery modules 1000. In addition, as shown in FIG. 11( b), the temperature sensor 1400 may be installed on the battery modules 1000 disposed in the middle by using the three battery modules 1000 as one unit.

The present invention is not limited to the above-described embodiments, and of course, the scope of application is diverse, and anyone who has ordinary knowledge in the field to which the present invention pertains without departing from the gist of the present invention as claimed in the claims. Of course, various modifications are possible.

1000: battery module
100: battery cell
100a: first battery cell 100b: second battery cell
110: electrode body 120: electrode tab
120a: positive electrode tab 120b: negative electrode tab
130: pouch
200: unit module
300: case
400: lower cap 410: fixing part
500: connection mold
510: terminal 511: positive terminal
512: negative terminal 513: voltage sensing terminal
600: upper cap
610: incision 620: fixing
700: connector 710: connector pin
800: bus bar
2000: battery pack
1100: base frame 1200: side plate
1300: Voltage sensing line 1400: Temperature sensor
1500: Temperature sensing line

Claims (11)

delete A unit module in which a plurality of battery cells are accommodated and a plurality of terminals are formed on one side;
Fixing parts formed on both sides of the unit module; And
A connector coupled to one side of the unit module; In the battery module comprising a,
The unit module,
A plurality of battery cells, which are stacked side by side, but are arranged such that both the positive electrode tab and the negative electrode tab face one side, and the positive electrode tab and the negative electrode tab facing each other are stacked and spaced apart from each other;
A case in which both sides are formed to be open and the battery cells are accommodated therein;
A lower cap coupled to an open side of the case and coupled to opposite sides of the positive and negative tabs;
A plurality of terminals are formed, and when inserted between the positive and negative tabs spaced apart from each other, the positive and negative tabs are connected to a corresponding terminal; And
The upper cap is coupled to the other side of the open case on the opposite side of the lower cap, the incision is formed so that the terminals of the connection mold are exposed to the outside; Including,
The terminal includes an anode terminal, a cathode terminal and a voltage sensing terminal,
The positive electrode terminal and the negative electrode terminal are formed to be bent to one side and the other side from the top surface of the connection mold, respectively, and the voltage sensing terminal is formed to be bent to one side and the other side from the top surface of the connection mold.
According to claim 2,
A battery module in which fixing portions are formed on the lower cap and the upper cap, and a connector is coupled to one side of the upper cap.
According to claim 2,
The positive terminal is connected to the positive tab of the first battery cell, the negative terminal is connected to the negative tab of the second battery cell, and the voltage sensing terminal is the negative tab of the first battery cell and the positive tab of the second battery cell. Battery module connected to.
The battery module according to any one of claims 2 to 4, wherein a plurality of cells are stacked side by side;
A base frame to which the fixing portions of the battery modules are coupled; And
A pair of side plates in close contact with the outermost portions of the battery modules and coupled to the base frame; Battery pack comprising a.
The method of claim 5,
The battery modules are connected in series or in parallel, the battery pack further comprises a voltage sensing line connecting the terminals and the connector.
delete The method of claim 5,
The positive and negative terminals of the battery modules are formed on a fixed portion side, and the voltage sensing terminal and connector are formed on opposite sides of a fixed portion.
delete The method of claim 6,
Among the battery modules, the battery module disposed on the outermost side and the battery module disposed on the odd number with respect to the outermost battery module on one side, the positive terminal, the negative terminal, and the voltage sensing terminal are respectively connected to the connector by a voltage sensing line. , In the even numbered battery module, the battery sensing terminal is connected to the connector by a voltage sensing line.
The method of claim 10,
The connector is formed of three pins or more, the battery module is provided with a temperature sensor, the connector pin of the battery module disposed in the even number is connected to the temperature sensor battery pack.

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