WO2011108798A1

WO2011108798A1 - Metal-air battery having a roll-type metal electrode feed unit

Info

Publication number: WO2011108798A1
Application number: PCT/KR2010/008031
Authority: WO
Inventors: 박상민; 윤중근; 이호일; 설신수
Original assignee: 현대중공업 주식회사
Priority date: 2010-03-04
Filing date: 2010-11-15
Publication date: 2011-09-09
Also published as: KR101048569B1

Abstract

The present invention relates to a metal-air battery having a roll-type metal electrode feed unit. In particular, the metal-air battery comprises: a battery container to be filled with an electrode, while the top surface thereof is open; a cover-and-roller support member which has an inlet and an outlet for a metal electrode and is installed in an openable and closable manner at the top opening of the battery container; a pair of cathodes attached to the left and right sides of the battery container; a feed roller formed of a thin metal electrode wound in a roll shape; a feed induction roller axially supported on an upper side of the cover-and-roller support member to induce the unwinding metal electrode from the feed roller into the battery container and then collect electricity generated therein; an idle roller axially supported on the center line of the bottom surface of the battery container, thereby allowing the metal electrode having been introduced into the battery container to escape from the battery container again while maintaining the constant tension; a return guide roller axially supported on the other upper side of the cover-and-roller support member to guide the metal electrode that passes through the battery container with the aid of the idle roller, following the "U"-shaped path and then moves toward a return roller; the return roller for rotating according to the revolutions per minute (RPM) of a motor and winding an oxidized metal electrode that has passed through the battery container and then guided by the return guide roller; the motor which is connected to the axle of the return roller and rotates in response to a signal outputted from a controller to wind the oxidized metal electrode having completed the service life around the return roller; and the controller for controlling the RPM of the motor. Hence, the cycle for inconvenient fuel metal replacement necessary to replace an existing metal electrode or to supply a metal slurry can be extended and the replacement work can be done easily as well. Moreover, the metal-air battery itself can be used for an extended period of time.

Description

Metal-air battery with rolled metal plate feeder

The present invention relates to a metal-air battery having a rolled metal electrode plate supply device. More specifically, unlike conventional hydrogen fuel cells, the metal electrode plate is automatically and continuously supplied by using a roller in a thin thickness, and the existing metal electrode is replaced. The invention has been invented to facilitate the long-term use of the metal-air battery because it can lengthen and facilitate the cycle of cumbersome fuel metal replacement work for supplying a mold or a metal slurry.

In the above, the metal fuel cell may be made of zinc, aluminum, magnesium, iron, lithium, or an alloy thereof as a metal fuel, and may be applied to any kind of metal fuel cell using a thin metal electrode plate in addition to the above metal. In particular, the metal pole plate of the metal-air battery system has a function of automatically removing the new plate and continuously supplying a new plate continuously when the service life of the metal plate is over a certain time and the end of its life, so that the existing metal pole replacement type or metal The present invention relates to a metal-air battery having a rolled metal electrode plate supply device invented to enable a long and convenient cycle of a cumbersome fuel metal replacement work for slurry supply, as well as to use the metal-air battery for a long time.

Basically, the concept of primary battery should be discarded when it is discharged once used. However, recently, the lithium ion polymer secondary battery has been considered for use in automobiles or large-capacity power storage devices. To overcome this problem, metal-air battery technology having a high energy density is emerging as a technology that can be replaced in the future.

Accordingly, a technology for electrochemically recharging a metal-air battery after discharging it like a secondary battery is currently being developed or under development, but there are still problems with recharge life and discharge efficiency.

Therefore, in order to overcome the problems of electrochemical charging and discharging and to utilize the high energy density characteristics inherent in metal-air batteries, a method of mechanically recharging a metal electrode material when it is consumed is considered.

In the mechanical recharging method, the metal electrode is replaced with the whole cartridge form or the metal powder is injected into the slurry form. However, the mechanical recharging method has a problem that the metal electrode needs to be replaced periodically in the case of the cartridge type. In the case of supplying the form metal in the form of slurry, it is being considered to remove the existing slurry and re-inject it as oil is supplied from the gas station.

The present invention has been made to solve such a conventional problem, a thin metal plate that can be wound on a roll is automatically discharged after a predetermined time with a predetermined output, the new metal plate is automatically In addition to providing a supply, the used metal oxide plates can be removed and sent to a recycling plant, and new metal plate rolls can be fitted, thus lengthening and facilitating cumbersome fuel metal replacement operations for supplying a conventional metal replacement or metal slurry. It is an object of the present invention to provide a metal-air battery having a rolled metal electrode plate supplying device which can be used as well as the metal-air battery itself can be conveniently used for a long time.

Metal-air battery of the present invention for achieving the above object, the battery container is filled with an electrolyte inside the upper surface is opened; A pair of air electrodes attached to left and right sides of the battery container; On each of the front and rear ends of the connecting bar formed to cross the center of the upper surface, the engaging protrusions which are caught on the upper surface of the opening of the battery container are integrally formed, and the roll guider is formed to protrude in the vertical direction from the bottom of the engaging protrusion, and both sides of the connecting bar are formed. A cover-and-roller support member having a configuration in which the metal electrode plate inlet and outlet holes are provided between the supply-induced roller and the recovery guide roller, and are detachably assembled through the upper opening of the battery container; A supply roller having a thin metal electrode plate wound in a roll shape; A supply induction roller which is held on one side of an inner surface of the locking protrusion of the cover and roller support member, guides the metal electrode plate released from the supply roller into the battery container and collects electricity generated; An idle roller which is squeezed between the lower end of the roll guider of the cover and the roller support member to allow the metal electrode plate introduced into the battery container to exit out of the battery container while maintaining a constant tensile force; A recovery guide roller which is supported by the other side of the inner surface of the locking protrusion of the cover and the roller support member and guides the metal electrode plate which moves to the recovery roller side after passing through the inside of the battery container by the idle roller in a "U" shape; A recovery roller which rotates in response to the rotational speed of the motor and winds the oxidized metal electrode plate which is guided through the recovery guide roller after passing through the battery container; A motor installed in the form of a rotating shaft connected to the shaft of the recovery roller to rotate in response to a signal output from the controller, and winding the oxidized metal electrode plate having the end of service life to the recovery roller; And a control unit for controlling the driving rotation speed of the motor.

At this time, the bottom surface of the battery container is formed to be inclined toward any one of the front surface or the rear surface, characterized in that the deep bottom surface is further formed a drain hole for taking out the electrolyte at the end of life.

In addition, the top and bottom of the front or rear of the battery container is characterized in that the electrolyte inlet and the electrolyte outlet formed further.

In addition, the middle portion of the roll guider of the cover and the roller support member is characterized in that the gap retaining and bending strength reinforcement bar to maintain the gap between the roll guider and at the same time to strengthen the bending strength.

At this time, the supply roller, the idle roller, the recovery guide roller and the recovery roller is formed of a non-metallic material, the supply induction roller is characterized in that formed from a metal material.

In addition, the idler roller is formed of a material having an inert property in an electrolyte environment so as not to deteriorate in the electrolyte.

In addition, the control unit calculates and inputs data on the usage period in advance with respect to the amount of current flowing through the metal electrode plate itself, and when the predetermined time elapses, the motor is driven by a predetermined number of revolutions and the end of life metal It is characterized in that the electrode plate is automatically taken out from the battery container and automatically wound on the recovery roller.

At this time, the life span of the metal electrode plate is characterized in that the thickness of the 48-52% of the original thickness.

In addition, the length of the metal plate to be recovered by one drive of the motor is characterized in that the distance from the feed induction roller to the recovery guide roller through the idle roller.

On the other hand, the metal-air battery may be used as a single cell, or may be used by connecting two or more in series or in parallel, or mixed and connected in series or in parallel.

As described above, according to the metal-air battery of the present invention, a thin metal electrode plate that can be wound on a roll is automatically discharged after a predetermined time at a predetermined output, and a new metal electrode plate is filled with electrolyte. It can be automatically supplied in the existing cell container, and used metal oxide plates can be removed and sent to the recycling plant, and new metal plate rolls can be installed and used continuously. It is a very useful invention such that the cycle of metal replacement work can be lengthened and facilitated, and the metal-air battery itself can be conveniently used for a long time.

1 is an exploded perspective view of a metal-air battery to which the present invention is applied.

2 is a cross-sectional view of a metal-air battery in which the present invention is applied.

3 is an exemplary view when using a metal-air battery to which the present invention is applied as a unit cell.

Figure 4 is an exemplary view when using the metal-air batteries connected in series with the present invention.

5 is an exemplary view when using the metal-air batteries connected to the present invention in parallel.

1: electrolyte

2: battery container 2a: drain ball

2b: electrolyte inlet 2c: electrolyte outlet

3: cover and roller support member 3a: connection bar

3b: obstacle 3c: roll guider

3d, 3e: Metal plate inlet and outlet hole 3f: Spacing and bending strength reinforcement bar

4: air electrode 5: metal electrode plate

6: Supply Roller 7: Supply Induction Roller

8: Children's Roller 9: Recovery Guide Roller

10: recovery roller 11: motor

12: control unit

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exploded perspective view of a metal-air battery to which the present invention is applied, FIG. 2 is a cross-sectional view of a metal state of the metal-air battery to which the present invention is applied, and FIG. 3 is a metal-air battery to which the present invention is applied. 4 shows an exemplary diagram when using a battery, and FIG. 4 shows an exemplary diagram when the metal-air batteries to which the present invention is applied are connected in series, and FIG. 5 shows the metal-air batteries to which the present invention is applied in parallel. It shows an example of using when connected to.

According to the metal-air battery of the present invention,

A battery container 2 in which an electrolyte 1 is filled in the state where the upper surface is opened;

A pair of air electrodes 4 attached to left and right sides of the battery container 2;

On the front and rear ends of the connecting bar 3a formed to cross the center of the upper surface, a locking protrusion 3b is formed integrally with each other and is vertically formed at the bottom of the locking protrusion 3b. A pair of roll guiders 3c inserted into the battery container 2 in the direction are protrudingly formed, and between both sides of the connection bar 3a, the supply guide roller 7 and the recovery guide roller 9, respectively. A cover-and-roller support member (3) having a configuration in which metal electrode plate inlet and outlet holes (3d) (3e) are provided and detachably assembled through an upper opening of the battery container (2);

A supply roller 6 in which a thin metal electrode plate 5 is wound in a roll form;

Supplying the metal electrode plate (5) is held on one side of the inner surface of the engaging protrusion (3b) of the cover and roller support member (3) released from the supply roller (6) into the battery container (2) to collect electricity generated An induction roller 7;

Between the lower end of the roll guider 3c of the cover and roller support member 3, the metal electrode plate 5 introduced into the inside of the battery container 2 maintains a constant tensile force and is then moved back to the outside of the battery container 2. An idler roller 8 for exiting;

The cover and the roller support member (3) is hung on the other side of the inner surface of the engaging protrusion (3b) is passed through the inside of the battery container (2) by the idle roller (8) in a "U" shape to the recovery roller (10) side A recovery guide roller 9 for guiding the moving metal electrode plate 5;

A recovery roller 10 which rotates in response to the rotational speed of the motor 11 and winds the oxidized metal electrode plate 5 guided through the recovery guide roller 9 after passing through the battery container 2;

The rotary shaft itself is installed in the form connected to the shaft of the recovery roller 10, and rotates in response to the signal output from the control unit 12, and wound around the recovery roller 10 by oxidizing the metal electrode plate 5, which has reached the end of its service life. A giving motor 11;

And a control unit 12 for controlling the drive rotation speed of the motor 11.

At this time, the bottom surface of the battery container (2) is formed to be inclined in the direction of any one of the front surface or the rear surface, a deep depth of the bottom surface further drain hole (2a) for taking out the electrolyte (1) Characterized in that formed.

In addition, it is characterized in that the electrolyte inlet (2b) and the electrolyte outlet (2c) is further formed on the top and bottom of the front or rear of the battery container (2), respectively.

Further, in the middle of the roll guider 3c of the cover and roller support member 3, a gap retaining and bending strength reinforcing bar 3f is further formed to maintain the gap between the roll guiders 3c and to strengthen the bending strength. Characterized in that it gave.

At this time, the supply roller (6), idle roller (8), recovery guide roller (9) and recovery roller (10) is formed of a non-metal material, the supply induction roller (7) is characterized in that formed from a metal material do.

In addition, the idle roller 8 is characterized in that it is molded from a material having an inert property in the electrolyte environment so as not to deteriorate in the electrolyte.

In addition, the control unit 12 calculates and inputs data on the usage period in advance with respect to the amount of current flowing through the metal electrode plate 5 itself, and when the predetermined time elapses as a result of the calculation by the control unit 12, the motor 11. ) By a predetermined number of revolutions is characterized in that the metal electrode plate 5, which has reached the end of its life due to oxidation, is automatically drawn out from the battery container 2 and automatically wound on the recovery roller 10.

At this time, the life span of the metal electrode plate 5 is characterized in that the thickness of the 48-52% of the original thickness.

In addition, the length of the oxidized metal electrode plate 5 recovered by the single drive of the motor 11 is the distance from the feed guide roller 7 to the recovery guide roller 9 via the idle roller 8. It is characterized by being.

Referring to the effects of the present invention configured as described above are as follows.

First, the metal-air battery according to the present invention includes a battery container 2 filled with an electrolyte 1, a cover and roller support member 3, a pair of air electrodes 4, and a metal electrode plate 5 supply roller 6 ), And a feed guide roller 7, an idle roller 8, a recovery guide roller 9, a recovery roller 10, a motor 11 and a control unit 12 are the main technical components.

At this time, the battery container (2) has a rectangular housing shape with an upper surface opened and the electrolyte (1) is filled therein, its bottom surface is formed to be inclined in the direction of either side of the front or rear, By forming a drain hole 2a in the deep bottom surface, when the life of the electrolyte has expired due to the long-term operation of the metal-air electric machine to which the present invention is applied, the electrolyte having reached the end of life (filled in the battery container 2) ( Through the drain hole (2a) formed in the bottom surface having a deep depth 1) all can be pulled out.

In addition, in the case of filling or replenishing the electrolyte in the battery container 2 by forming an electrolyte inlet 2b and an electrolyte outlet 2c at the top and bottom of the front or rear of the battery container 2, respectively. An electrolyte supply device (not shown) may be connected to and injected into the electrolyte inlet 2b of the battery container 2, and the battery container may be discharged to a part of the electrolyte filled in the battery container 2 to the outside. What is necessary is just to connect and discharge the electrolyte collection | recovery apparatus not shown in figure to the electrolyte discharge port 2c of (2).

In addition, the cover and the roller support member (3) is basically caught on the upper surface of the opening of the battery container (2) on the front and rear ends of the connecting bar (3a) formed to cross the center of the upper surface to perform a cover function ( 3b) is integrally formed and a pair of roll guiders 3c inserted into the battery container 2 in the vertical direction from the bottom of the locking portion 3b are formed to protrude prolongedly, and the connection bar A metal electrode plate inlet and

outlet hole

3d and 3e through which the metal plate 5 can be introduced and discharged are provided between both sides of the 3a and the supply guide roller 7 and the recovery guide roller 9 to be described later. Through the upper opening of the battery container (2) has a form that can be coupled to disassemble assembling.

At this time, when the roll guider 3c is simply protruded in the vertical direction from the bottom of the locking portion 3b to protrude in a vertical direction, the roll guider 3c may be bent or deformed, and the gap may not be kept exactly parallel. Therefore, in the present invention, by forming a gap retaining and bending strength reinforcing bar (3f) in the middle portion of the roll guider (3c) of the cover and roller support member (3) to reinforce the bending strength itself of the roll guider (3c) Through the gap between the roll guider (3c) was to maintain a fixed interval accurately.

In addition, the pair of air electrodes (4) has a form attached to the left and right sides of the battery container (2), respectively, the supply roller (6) has a shape formed of a non-metal material and a thin metal of a certain length In the state in which the pole plate 5 is wound in the form of a roll, it is installed in a form axially formed on one side of the upper surface of the cover and roller support member 3.

In addition, the supply induction roller 7 is squeezed on one side of the inner surface of the engaging portion 3b of the cover and roller support member 3 in a state of being formed of a metal material for dust collection, and is released from the supply roller 6. The electrode plate 5 is smoothly guided into the battery container 2 and performs a function of collecting current generated at the same time.

On the other hand, the idle roller (8) has a shape formed of a non-metal material and is rotatably squeezed between the lower end of the roll guider (3c) of the cover and roller support member (3) flows into the inside of the battery container (2) The metal electrode plate 5 performs the function of exiting the battery container 2 again while maintaining a constant tensile force, wherein the idle roller 8 is the electrolyte (1) in the battery container (2) In order to prevent deterioration in the electrolyte, it is molded in a material having inert properties in the electrolyte environment.

In addition, the recovery guide roller (9) has a shape formed of a non-metal material and is stored in the other side of the inner surface of the engaging protrusion (3b) of the cover and roller support member (3) by the idle roller (8) ) After passing through the inside of the "U" shape to perform the function of smoothly guiding the metal electrode plate (5) moving to the recovery roller (10) side.

In addition, the recovery roller 10 has a shape formed of a non-metallic material and is coupled to the shaft of the motor 11 to rotate in response to the rotational speed of the motor 11 and the recovery guide after passing through the battery container 2. After the oxidized metal electrode plate 5 guided through the roller 9 is wound up and all the metal electrode plates 5 wound around the supply roller 6 are finished, the recovered metal electrode plate can be sent to a recycling plant for regeneration. Make sure

As described above, the motor 11 is installed in a form in which the rotating shaft itself is connected to the shaft of the recovery roller 10, and rotates in response to a signal output from the control unit 12 and has reached the end of its service life. (5) performs a function of winding the recovery roller 10, the control unit 12 performs a function of controlling the drive rotational speed of the motor (11).

At this time, the control part 12 is in a state in which the life span of the metal electrode plate 5 has reached the end of its original thickness when used for some time compared to the amount of current flowing through the metal plate 5 itself (which is a current value actually known). If the data about 48-52% is calculated and input in advance, and the cumulative time is continuously calculated by the control unit 12 while the metal-air battery to which the present invention is applied is operated, and as a result, By driving the motor 11 by a predetermined number of revolutions, the metal electrode plate 5, which has reached the end of its life due to oxidation, is automatically drawn out from the battery container 2 to be automatically wound on the recovery roller 10.

In the above, the length of the oxidized metal electrode plate 5 wound around the recovery roller 10 each time the motor 11 is driven is between the supply induction roller 7, the idle roller 8, and the recovery guide roller 9. The number of revolutions of the motor 11 is automatically controlled by the control unit 12 so as to reach a distance to the same. This operation is performed until the metal electrode plates 5 wound on the supply rollers 6 are exhausted. If the metal plate 5 is exhausted, the metal plate roll installed in the supply roller 6 is replaced with a new one, and the oxidized metal plate 5 recovered in the recovery roller 10 is sent to a recycling plant for regeneration. You can do that.

Meanwhile, the metal-air battery to which the present invention is applied may be used as a unit cell in which one is installed in one load as shown in FIG. 3, and two or more are connected in series or in parallel as necessary as illustrated in FIGS. 4 and 5. Of course, although not shown, two or more metal-air batteries may be used in combination and in series and in parallel.

Although the above-described embodiments have been described with respect to the most preferred embodiments of the present invention, it is not limited to the above embodiments, and it will be apparent to those skilled in the art that various modifications can be made without departing from the technical spirit of the present invention.

Claims

A battery container filled with an electrolyte in an upper surface thereof in an open state;

A pair of air electrodes attached to left and right sides of the battery container; On each of the front and rear ends of the connecting bar formed to cross the center of the upper surface, the engaging protrusions which are caught on the upper surface of the opening of the battery container are integrally formed. A cover-and-roller support member having a configuration in which the metal electrode plate inlet and outlet holes are provided between the supply-induced roller and the recovery guide roller, and are detachably assembled through the upper opening of the battery container;

A supply roller having a thin metal electrode plate wound in a roll shape;

A supply induction roller which is held on one side of an inner surface of the locking protrusion of the cover and roller support member, guides the metal electrode plate released from the supply roller into the battery container and collects electricity generated;

An idle roller which is squeezed between the lower end of the roll guider of the cover and the roller support member to allow the metal electrode plate introduced into the battery container to exit out of the battery container while maintaining a constant tensile force;

A recovery guide roller which is supported by the other side of the inner surface of the locking protrusion of the cover and the roller support member and guides the metal electrode plate which moves to the recovery roller side after passing through the inside of the battery container by the idle roller in a "U" shape;

A recovery roller which rotates in response to the rotational speed of the motor and winds the oxidized metal electrode plate which is guided through the recovery guide roller after passing through the battery container;

A motor installed in the form of a rotating shaft connected to the shaft of the recovery roller to rotate in response to a signal output from the controller, and winding the oxidized metal electrode plate having the end of service life to the recovery roller;

And a control unit for controlling the driving rotational speed of the motor.
The method according to claim 1,

The bottom surface of the battery container is formed to be inclined toward any one of the front or rear surface, but the deep deep bottom surface is provided with a roll-shaped metal electrode plate characterized in that the drain hole for extracting the end of life electrolyte is further formed Metal-air battery with device.
The method according to claim 1,

The metal-air battery having a roll-type metal plate supply device, characterized in that the upper and lower ends of the front or rear of the battery container to form an electrolyte inlet and an electrolyte outlet, respectively.
The method according to claim 1,

The roll-guider intermediate part of the cover and roller support member has a roll-shaped metal plate-type electrode having a roll-type metal plate feeder, which is further formed by maintaining a gap between the roll guiders and simultaneously reinforcing the bending strength reinforcing bar to strengthen the bending strength. battery.
The method according to claim 1,

The feed roller and idle roller, the recovery guide roller and the recovery roller is formed of a non-metal material, the feed induction roller is a metal-air battery having a roll-type metal plate supply device, characterized in that formed from a metal material.
The method according to claim 5,

The idler roller is a metal-air battery having a rolled metal electrode plate supply device, characterized in that molded in a material having an inert property in the electrolyte environment so as not to deteriorate in the electrolyte.
The method according to claim 1,

The control unit calculates and inputs data on the usage period in advance with respect to the amount of current flowing through the metal electrode plate itself, and when the predetermined time elapses, the motor is driven by a predetermined number of revolutions. A metal-air battery having a roll-type metal plate feeder, characterized in that it is automatically taken out from the battery container to be automatically wound on a recovery roller.
The method according to claim 7,

The metal-air battery having a rolled metal electrode plate supply apparatus, characterized in that the end of the life of the metal electrode plate is the time when the thickness is 48-52% of the original thickness.
The method according to claim 7,

The length of the metal electrode plate recovered by the driving of the motor in the above is a distance from the feed induction roller to the recovery guide roller through the idle roller, characterized in that the metal-air battery having a roll-type metal electrode plate supply device.