JP2016152134A - Battery pack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a battery pack in which plural metal air battery cells 11 to 15 can be connected to one another without any cord or the like.SOLUTION: A battery pack includes metal air battery cells 11 to 15 and a housing 20 in which the metal air battery cells are stored. Positive electrode terminals 151 to 155 and negative terminals 161 to 165 are arranged at the upper portions of the metal air battery cells 11 to 15. The housing 20 comprises a housing main body 21 and a lid portion 23. Positive electrode terminals 51, 52 and negative electrode terminals 61, 62 are mounted on the lid portion 23. On the inner surface of the lid portion 23 is formed a circuit pattern 31 which contacts the positive electrode terminals 151 to 155 and the negative electrode terminals 161 to 165 of the metal air battery cells 11 to 15 received in the housing main body 21 to connect the metal air battery cells 11 to 15 to one another in series, connect the positive electrode terminals 51, 52 and the positive electrode terminal 151 and connect the negative electrode terminal 165 and the negative electrode terminals 61, 62.SELECTED DRAWING: Figure 8

Description

  The present invention relates to an assembled battery in which a plurality of metal-air battery cells are stored in a casing.

  A metal-air battery is a battery that can extract electrical energy obtained in the process of oxidation of a metal such as magnesium, and is composed of a metal-air battery cell including a metal electrode (negative electrode), an air electrode (positive electrode), and an electrolyte. It has been attracting attention as an emergency power source in the event of a disaster (see Patent Document 1 below).

On the other hand, it is a common practice to store a plurality of single cells (battery cells) of the same type in a casing to form an assembled battery (pack battery).
In a battery pack, a plurality of single cells (battery cells) stored in a casing are connected in series or in parallel, thereby ensuring output (electromotive force) or usage time according to the application. Here, a cord is usually used to connect a plurality of single cells (battery cells).

However, when newly manufacturing an assembled electrode using a plurality of metal-air battery cells, or when replacing a part of the battery cells constituting the assembled battery due to consumption of the metal electrode, etc. The operation of making a connection or releasing the connection by a cord is complicated.
Moreover, since codes occupy a part of the internal space of the housing, it is not preferable from the viewpoint of space efficiency.

JP2013-168360A

The present invention has been made based on the above situation.
An object of the present invention is to provide an assembled battery (metal-air assembled battery) capable of connecting a plurality of constituent metal-air battery cells without using cords.
Another object of the present invention is to provide an assembled battery that is excellent in workability and space efficiency when it is manufactured or a part of a metal-air battery cell constituting the same is replaced. is there.

(1) A box-shaped assembled battery (metal-air assembled battery) comprising a plurality of metal-air battery cells having a substantially rectangular parallelepiped shape and a housing for storing the metal-air battery cells,
In each of the metal-air battery cells, a positive electrode terminal and a negative electrode terminal are disposed in the upper part,
The case is composed of a case main body having an upper opening, and a lid part that is mounted so as to cover the opening of the case main body.
A positive electrode terminal and a negative electrode terminal as the assembled battery are attached to the lid portion,
When this is mounted on the inner surface of the lid portion, the metal-air battery cells come into contact with the positive and negative terminals of the metal-air battery cells housed in the housing body, and the metal-air battery cells are connected in series or in parallel. And connecting a positive terminal as the assembled battery and a positive terminal (one or a plurality of positive terminals) of the metal-air battery cell, and a negative terminal (one or a plurality of positive-electrode terminals of the metal-air battery cell). A circuit pattern for connecting a negative electrode terminal) and a negative electrode terminal as the assembled battery is formed.

(2) In the assembled battery of the present invention, k (where k is an integer of 2 or more) the metal-air battery cells are stored in the casing,
The circuit pattern is a pattern for connecting the metal-air battery cells in series,
A conductive path connecting the positive electrode terminal as the assembled battery and the positive electrode terminal of the first metal-air battery cell;
A conductive path connecting the negative terminal of the nth metal air battery cell (where n is an integer from 1 to (k-1)) and the positive terminal of the (n + 1) th metal air battery cell;
It is preferable to have a conductive path connecting the negative electrode terminal of the kth metal-air battery cell and the negative electrode terminal as an assembled battery.

  Here, if an example of the circuit pattern (k = 5) is shown, a conductive path connecting the positive terminal as an assembled battery and the positive terminal of the first metal-air battery cell, and the first metal-air battery A conductive path connecting the negative electrode terminal of the cell and the positive electrode terminal of the second metal-air battery cell, and connecting the negative electrode terminal of the second metal-air battery cell and the positive electrode terminal of the third metal-air battery cell A conductive path connecting the negative electrode terminal of the third metal-air battery cell and the positive electrode terminal of the fourth metal-air battery cell, the negative electrode terminal of the fourth metal-air battery cell, and the fifth A conductive path connecting the positive electrode terminal of the fifth metal-air battery cell, and a conductive path connecting the negative electrode terminal of the fifth metal-air battery cell and the negative electrode terminal as an assembled battery.

(3) In the assembled battery of the present invention, the circuit pattern is a pattern for connecting the metal-air battery cells in parallel,
A conductive path connecting the positive terminals of the metal-air battery cells;
A conductive path connecting the conductive path and a positive electrode terminal as an assembled battery;
A conductive path connecting the negative terminals of the metal-air battery cells;
It is preferable to have a conductive path connecting this conductive path and a negative electrode terminal as an assembled battery.

(4) In the assembled battery of the present invention, the positive electrode terminal as the assembled battery includes a first positive electrode terminal disposed on one of the front surface and the back surface of the housing and either the left or right of the housing. And a second positive electrode terminal electrically connected to the first positive electrode terminal,
The negative electrode terminal as the assembled battery is disposed on a first negative electrode terminal disposed on a surface of the casing on which the first positive electrode terminal is disposed, and on a left or right side surface of the casing, and A second negative electrode terminal electrically connected to the negative electrode terminal;
The first positive electrode terminal and the first negative electrode terminal are in a line-symmetrical position with respect to a vertical line that bisects the surface of the housing where the first positive electrode terminal and the first negative electrode terminal are arranged,
2. The assembled battery according to claim 1, wherein the second positive electrode terminal and the second negative electrode terminal are located on the same straight line orthogonal to both the right side surface and the left side surface of the housing.

According to the assembled battery of the present invention, a plurality of metal-air battery cells constituting the battery can be connected in series or in parallel without using cords.
In addition, when the assembled battery of the present invention is newly manufactured or a part of the metal-air battery cell constituting the battery is replaced, it is not necessary to route cords, so that the workability is excellent.
Further, the assembled battery of the present invention is excellent in space efficiency because no cords are present in the casing constituting the battery pack.

It is the perspective view which looked at the assembled battery which concerns on one Embodiment of this invention from the front side. It is the perspective view which looked at the assembled battery shown in FIG. 1 from the back side. It is a rear view of the assembled battery shown in FIG. It is a perspective view which shows the state which removed the cover part in the assembled battery shown in FIG. It is a top view which shows the outer surface of the cover part which comprises the assembled battery shown in FIG. It is a perspective view which shows the inner surface of the cover part which comprises the assembled battery shown in FIG. It is a bottom view which shows the inner surface of the cover part which comprises the assembled battery shown in FIG. It is the perspective view which abbreviate | omitted illustration of the cover parts other than an electroconductive path | route about the assembled battery shown in FIG. It is the top view (top view) which abbreviate | omitted illustration of the cover parts other than an electroconductive path | route about the assembled battery shown in FIG. It is a perspective view which shows the inner surface of the cover part which comprises the assembled battery which concerns on other embodiment of this invention. It is a bottom view which shows the inner surface of the cover part which comprises the assembled battery which concerns on other embodiment of this invention. It is the perspective view which abbreviate | omitted illustration of the cover parts other than a conductive path about the assembled battery which concerns on other embodiment of this invention. It is the top view (top view) which abbreviate | omitted illustration of the cover parts other than a conductive path about the assembled battery which concerns on other embodiment of this invention.

<First Embodiment>
Hereinafter, an embodiment of an assembled battery of the present invention will be described with reference to the drawings.
The assembled battery 100 of this embodiment shown in FIGS. 1-9 has five metal air battery cells 11-15 which have a flat substantially rectangular parallelepiped shape, and the housing | casing 20 which accommodates these metal air battery cells 11-15, The metal-air battery cells 11 to 15 are respectively provided with positive electrode terminals 151 to 155, negative electrode terminals 161 to 165, and water supply ports 181 to 185. The housing 20 includes a housing body 21 having an upper opening and a lid portion 23 that is mounted so as to cover the opening of the housing body 21. The first positive terminal 51 (511, 512) and the second positive terminal 52 (521, 522) as positive terminals, and the first negative terminal 61 (611, 612) and the second negative terminal as negative batteries Terminal 62 (6 1, 622) is attached, and the positive electrode terminals 151 to 155 of the metal-air battery cells 11 to 15 housed in the casing body 21 when the lid 23 is attached to the casing body 21 when the casing body 21 is mounted. The metal air battery cells 11 to 15 are connected in series in contact with the negative electrode terminals 161 to 165, and the first positive electrode terminal 51 (511, 512), the second positive electrode terminal 52 (521, 522), and the metal air battery. A circuit pattern 31 connecting the positive terminal 151 of the cell 11 and connecting the negative terminal 165 of the metal-air battery cell 15 to the first negative terminal 61 (611, 612) and the second negative terminal 62 (621, 622) is provided. Is formed.

  1 to 3 and 6 to 9, 51 (511, 512) is a first positive terminal, 52 (521, 522) is a second positive terminal, 61 (611, 612) is a first negative terminal, 62 (621, 622) is a second negative terminal. Moreover, in FIGS. 1 and 5 to 7, reference numerals 221 to 225 denote water supply ports arranged in the lid portion 23 of the housing 20 corresponding to the water supply ports 181 to 185 of the metal-air battery cells 11 to 15, respectively. Reference numeral 24 denotes a handle (handle).

  The casing 20 constituting the assembled battery 100 includes a casing main body 21 having an upper opening and a lid portion 23 that is mounted so as to cover the opening of the casing main body 21.

  As shown in FIGS. 1 to 3, a first positive electrode terminal 51 (511, 512) and a first negative electrode terminal 61 (611, 612) are provided on the back surface 202 of the housing 20 (lid portion 23). . Further, the second positive electrode terminal 52 (521, 522) is disposed on the right side surface 203 of the housing 20 (lid portion 23), and the second negative electrode terminal is disposed on the left side surface 204 of the housing 20 (lid portion 23). 62 (621, 622) is arranged.

The first positive terminal 51 and the second positive terminal 52 are positive electrons of the assembled battery 100, and the first negative terminal 61 and the second negative terminal 62 are negative electrons of the assembled battery 100.
Each of the first positive terminal 51, the second positive terminal 52, the first negative terminal 61, and the second negative terminal 62 is a jack terminal that can be fitted with a plug terminal such as a banana plug.
In the present embodiment, two first positive terminals 51, second positive terminals 52, first negative terminals 61, and second negative terminals 62 are provided for the sake of current capacity. Good.

  The positive terminal (first positive terminal 51, second positive terminal 52) and negative terminal (first negative terminal 61, second negative terminal 62) are used when the plurality of assembled batteries 100 are electrically connected in series. The Here, as an aspect in which the two assembled batteries 100 are connected in series, the following aspects (1) to (4) can be given.

  (1) The right side surface 203 or the left side surface 204 of the housing 20 constituting one assembled battery 100 and the left side surface 204 or the right side surface 203 of the housing 20 constituting the other assembled battery 100 are approached or brought into contact with each other. The second positive terminal 52 (521, 522) or the second negative terminal 62 (621, 622) of one assembled battery 100 and the second negative terminal 62 (621, 622) of the other assembled battery 100 or A mode in which the second positive terminal 52 (521, 522) is connected.

  (2) The rear surface 202 of the casing 20 that constitutes one assembled battery 100 and the rear surface 202 of the casing 20 that constitutes the other assembled battery 100 are arranged so as to approach or come into contact with each other. The first positive terminal 51 (511, 512) or the first negative terminal 61 (611, 612) and the first negative terminal 61 (611, 612) or the first positive terminal 51 (511, 512) of the other assembled battery 100. A mode of connecting

  (3) The casing 20 constituting one assembled battery 100 and the casing 20 constituting the other assembled battery 100 are stacked so as to face the same direction, and the first positive terminal of the one assembled battery 100 51 (511, 512) or the first negative electrode terminal 61 (611, 612) and the first negative electrode terminal 61 (611, 612) or the first positive electrode terminal 51 (511, 512) of the other assembled battery 100 are connected. A mode of connecting using tools.

  (4) The casing 20 constituting one assembled battery 100 and the casing 20 constituting the other assembled battery 100 are stacked and arranged so as to face the same direction, and the second positive terminal of the one assembled battery 100 52 (521, 522) or the second negative electrode terminal 62 (621, 622) and the second negative electrode terminal 62 (621, 622) or the second positive electrode terminal 52 (521, 522) of the other assembled battery 100 are connected and cured. A mode of connecting using tools.

  As shown in FIGS. 1 and 2, the second positive terminal 52 (521, 522) disposed on the right side 203 of the casing 20 (lid 23) and the left side 204 of the casing 20 (lid 23). And the second negative electrode terminal 62 (621, 622) disposed on the straight line X (X1, X2) orthogonal to both the right side surface 203 and the left side surface 204 of the housing 20.

  Accordingly, in the above-described aspect (1), the second positive terminal 52 (521, 522) or the second negative terminal 62 (621, 622) of one assembled battery 100 and the second negative terminal of the other assembled battery 100 62 (621, 622) or the second positive terminal 52 (521, 522) can be opposed to each other.

  Accordingly, the second positive terminal 52 (521, 522) or the second negative terminal 62 (621, 622) of one assembled battery 100 and the second negative terminal 62 (621, 622) of the other assembled battery 100 or the second The two positive terminals 52 (521, 522) can be connected by a cordless connecting connector having plug terminals on both sides.

  As shown in FIG. 3, the first positive electrode terminal 51 (511, 512) and the first negative electrode terminal 61 (611, 612) arranged on the back surface 202 of the housing 20 (lid portion 23) are connected to the back surface 202. The positions are symmetrical with respect to the equally dividing vertical line Z.

  Thereby, in the aspect (2), the first positive terminal 51 (511, 512) of one assembled battery 100 and the first negative terminal 61 (611, 612) of the other assembled battery 100 are opposed to each other. In addition, the first negative electrode terminal 61 (611, 612) of one assembled battery 100 and the first positive electrode terminal 51 (511, 512) of the other assembled battery 100 can be made to face each other.

  As a result, the first positive terminal 51 (511, 512) of one assembled battery 100 and the first negative terminal 61 (611, 612) of the other assembled battery 100 are connected by a connecting connector having plug terminals on both sides. The first negative terminal 61 (611, 612) of one assembled battery 100 and the first positive terminal 51 (511, 512) of the other assembled battery 100, and a cordless having plug terminals on both sides It can be connected by the connecting connector.

As shown in FIG. 4, five metal-air battery cells 11 to 15 having a flat, substantially rectangular parallelepiped shape are arranged inside the housing body 21.
In each of the metal-air battery cells 11 to 15, a metal electrode (negative electrode) (not shown) made of a magnesium sheet and an air electrode (positive electrode) (not shown) made of a magnesium sheet are arranged and filled with an electrolytic solution. .
All or part of the metal-air battery cells 11 to 15 is exchanged as the magnesium sheet is consumed.

  A positive electrode terminal 151, a negative electrode terminal 161 and a water supply port 181 are arranged on the upper part of the metal-air battery cell 11, and a positive electrode terminal 152, a negative electrode terminal 162 and a water supply port 182 are arranged on the upper part of the metal-air battery cell 12, A positive electrode terminal 153, a negative electrode terminal 163, and a water supply port 183 are arranged on the upper part of the metal-air battery cell 13, and a positive electrode terminal 154, a negative electrode terminal 164, and a water supply port 184 are arranged on the upper part of the metal-air battery cell 14, A positive electrode terminal 155, a negative electrode terminal 165, and a water supply port 185 are arranged on the upper part of the metal-air battery cell 15.

  As shown in FIGS. 6 and 7, the lid portion 23 constituting the casing 20 of the assembled battery 100 has a first positive terminal 51 (511, 512) and a second positive terminal 52 that are positive terminals of the assembled battery 100. (521, 522) are mounted, and the first negative terminal 61 (611, 612) and the second negative terminal 62 (621, 622), which are the negative terminals of the battery pack 100, are mounted.

  The first positive terminal 51 and the second positive terminal 52 are connected to each other by a conductive path (conductive plate) 325, and the first negative terminal 61 and the second negative terminal 62 are connected to each other by a conductive path (conductive plate) 326. Has been.

  On the inner surface of the lid 23, the positive terminals 151 to 155 and the negative electrodes of the metal-air battery cells 11 to 15 accommodated in the casing main body 21 when the lid 23 is attached (covered) to the casing main body 21. In contact with the terminals 161 to 165, the metal air battery cells 11 to 15 are connected in series, and the first positive electrode terminal 51 and the second positive electrode terminal 52 are connected to the positive electrode terminal 151 of the metal air battery cell 11, A circuit pattern 31 that connects the negative electrode terminal 165 of the metal-air battery cell 15 to the first negative electrode terminal 61 and the second negative electrode terminal 62 is formed.

  The circuit pattern 31 includes a conductive path 310 for connecting the positive terminal (the first positive terminal 51 and the second positive terminal 52) of the assembled battery 100 and the positive terminal 151 of the metal-air battery cell 11, and the metal-air battery cell. 11 to connect the negative electrode terminal 161 of the metal-air battery cell 12 and the positive electrode terminal 152 of the metal-air battery cell 12, and to connect the negative electrode terminal 162 of the metal-air battery cell 12 and the positive electrode terminal 153 of the metal-air battery cell 13. , The conductive path 313 for connecting the negative terminal 163 of the metal-air battery cell 13 and the positive terminal 154 of the metal-air battery cell 14, the negative terminal 164 of the metal-air battery cell 14, and the metal-air battery cell A conductive path 314 for connecting the 15 positive terminals 155, a negative terminal 165 of the metal-air battery cell 15, and a negative terminal (first negative terminal) of the battery pack 100. 1, and a and a conductive path 315 for connecting the second negative terminal 62) and.

The conductive paths 310 to 315 are made of a copper plate and are affixed to the inner surface of the lid portion 23 by appropriate means.
The conductive paths 310 to 314 are provided with contacts with the positive terminals 151 to 155 of the metal-air battery cells 11 to 15, and the conductive paths 311 to 315 are connected to the negative terminals 161 to 165 of the metal-air battery cells 11 to 15. (In FIGS. 6 and 7, these contacts are indicated by “◎”). The conductive path 310 and the conductive path 311 intersect three-dimensionally and are not in contact with each other.

  By attaching the lid portion 23 to the casing body 21 in which the metal-air battery cells 11 to 15 are accommodated, as shown in FIGS. 8 and 9, the positive terminal (the first positive terminal 51 and the first positive terminal of the battery pack 100). 2 positive electrode terminal 52) and positive electrode terminal 151 of metal air battery cell 11 are connected by conductive path 310, and negative electrode terminal 161 of metal air battery cell 11 and positive electrode terminal 152 of metal air battery cell 12 are connected by conductive path 311. The negative electrode terminal 162 of the metal-air battery cell 12 and the positive electrode terminal 153 of the metal-air battery cell 13 are connected by the conductive path 312, and the negative electrode terminal 163 of the metal-air battery cell 13 and the positive electrode terminal 154 of the metal-air battery cell 14 are connected. Are connected by a conductive path 313, and the negative terminal 164 of the metal-air battery cell 14 and the positive terminal 155 of the metal-air battery cell 15 are connected by a conductive path 314. Which are connected by the negative terminal 165 and the negative terminal of the battery pack 100 (the first negative terminal 61 and the second negative terminal 62) Togashirube path 315 of the metal-air battery cell 15.

  As a result, the metal-air battery cell 11, the metal-air battery cell 12, the metal-air battery cell 13, the metal-air battery cell 14, and the metal-air battery cell 15 are electrically connected in series, and the first positive terminal 51 (511, 512) and the second positive terminal 52 (521, 522) serve as a positive terminal as the assembled battery 100, and the first negative terminal 61 (611, 612) and the second negative terminal 62 (621, 622) serve as the assembled battery 100. It becomes the negative terminal.

According to the assembled battery 100 of the present embodiment, the metal air battery cells 11 to 15 can be attached to the casing main body 21 that accommodates the metal air battery cells 11 to 15 without using cords. They can be connected in series, and the connection of the metal-air battery cells 11 to 15 can be released simply by removing the lid 23 from the housing body 21.
According to the assembled battery 100 of the present embodiment, when this is newly manufactured or when a part of the metal-air battery cells 11 to 15 is exchanged due to consumption of the magnesium sheet (metal electrode), the cord Since it is not necessary to manage the kind, it is excellent in workability.
Moreover, the assembled battery 100 of this embodiment is excellent in space efficiency because no cords are present in the housing 20.

In addition, according to the assembled battery 100 of the present embodiment, a plurality of cordless connection connectors can be electrically connected in series.
Here, the assembled batteries 100 may be connected in the left-right direction (X direction) by connecting the second positive terminal 52 (521, 522) and the second negative terminal 62 (621, 622), The first positive terminal 51 (511, 512) and the first negative terminal 61 (611, 612) may be connected and connected in the front-rear direction (Y direction).
Moreover, it connects in the height direction (Z direction) by connecting the 1st positive electrode terminal 51 or the 2nd positive electrode terminal 52, and the 1st negative electrode terminal 61 or the 2nd negative electrode terminal 62 using a connection jig. You can also

Second Embodiment
The assembled battery of the present embodiment is different from the first embodiment in the circuit pattern formed on the lid of the housing, and the other configuration is the same as that of the first embodiment.

  As shown in FIGS. 10 and 11, the lid portion 25 of the housing constituting the assembled battery of the present embodiment has a first positive terminal 51 (511, 512), a second positive electrode, as in the first embodiment. The terminal 52 (521, 522), the first negative electrode terminal 61 (611, 612) and the second negative electrode terminal 62 (621, 622) are mounted.

  On the inner surface of the lid portion 25, when the lid portion 25 is attached to the housing body 21, the positive terminals 151 to 155 and the negative terminals 161 to 165 of the metal-air battery cells 11 to 15 housed in the housing body 21. The metal air battery cells 11 to 15 are electrically connected in parallel, and the first positive electrode terminal 51 and the second positive electrode terminal 52 and the positive electrode terminals 151 to 155 of the metal air battery cells 111 to 15 are connected. A circuit pattern 33 that connects and connects the negative terminals 161 to 165 of the metal-air battery cells 11 to 15 to the first negative terminal 61 and the second negative terminal 62 is formed.

  The circuit pattern 33 includes a conductive path 335 for connecting the positive terminals 151 to 155 of the metal-air battery cells 11 to 15, and the conductive path 335 and a positive terminal of the battery pack (the first positive terminal 51 and the second positive terminal). A conductive path 331 for connecting the terminal 52), a conductive path 336 for connecting the negative terminals 161-165 of the metal-air battery cells 11-15, and a negative terminal (first terminal) of the assembled battery and the conductive path 336. And a conductive path 337 for connecting the first negative terminal 61 and the second negative terminal 62).

The conductive path 331, the conductive path 335, the conductive path 336, and the conductive path 337 are made of a copper plate, and are attached to the inner surface of the lid portion 25 by an appropriate means.
The conductive path 335 is provided with contacts with the positive terminals 151-155 of the metal-air battery cells 11-15, and the conductive path 336 is provided with contacts with the negative terminals 161-165 of the metal-air battery cells 11-15. (In FIGS. 10 and 11, these contact points are indicated by “「 ”). Note that the conductive path 331 and the conductive path 336 intersect three-dimensionally and are not in contact with each other.

  By attaching the lid portion 25 to the casing body 21 in which the metal-air battery cells 11 to 15 are accommodated, as shown in FIGS. 12 and 13, the positive terminals 151 to 155 of the metal-air battery cells 11 to 15 are changed. The conductive paths 335 are connected to each other, and the conductive paths 335 are connected to the positive terminals (the first positive terminal 51 and the second positive terminal 52) of the assembled battery according to the present embodiment by the conductive paths 331, and metal The negative terminals 161 to 165 of the air battery cells 11 to 15 are connected to each other by a conductive path 336, and the conductive path 336 and the negative terminals (the first negative terminal 61 and the second negative terminal 62 of the assembled battery of this embodiment). Are connected by a conductive path 337.

  As a result, the metal-air battery cell 11, the metal-air battery cell 12, the metal-air battery cell 13, the metal-air battery cell 14, and the metal-air battery cell 15 are electrically connected in parallel, and the first positive terminal 51 (511, 512) and the second positive terminal 52 (521, 522) serve as a positive terminal as an assembled battery, and the first negative terminal 61 (611, 612) and the second negative terminal 62 (621, 622) serve as an assembled battery. It becomes the negative terminal.

According to the assembled battery of the present embodiment, the metal air battery cells 11 to 15 are arranged in parallel without using cords, by simply attaching the lid portion 25 to the housing body 21 that accommodates the metal air battery cells 11 to 15. Moreover, the connection of the metal-air battery cells 11 to 15 can be released simply by detaching the lid 25 from the housing body 21.
According to the assembled battery of the present embodiment, when the battery is newly manufactured or a part of the metal-air battery cells 11 to 15 is exchanged due to consumption of the magnesium sheet (metal electrode), the cords It is excellent in workability.
Further, the assembled battery of the present embodiment is excellent in space efficiency because there are no cords in the housing 20.

As mentioned above, although embodiment of this invention was described, the assembled battery of this invention is not limited to this, A various change is possible.
For example, the number of metal-air battery cells is not limited to five, and two or more metal-air battery cells can be stored in the housing.
Moreover, the shape of a circuit pattern will not be specifically limited if a metal air battery cell can be connected in series or in parallel.

DESCRIPTION OF SYMBOLS 100 Metal-air battery unit 11-15 Metal-air battery cell 20 Housing | casing 21 Housing | casing main body 23 Lid | cover part 25 Lid | cover part 201 Front surface of housing | casing 202 Rear surface of housing | casing 203 Right side surface 204 of housing | casing Left side surface 51 of a housing | casing (511 512) First positive terminal 52 (521, 522) Second positive terminal 61 (611, 612) First negative terminal 62 (621, 622) Second negative terminals 221 to 225 Water supply port 24 Handle (handle)
151-155 Positive terminal 161-165 of metal air battery cell Negative terminal 181-185 of metal air battery cell Water supply port 31 Circuit pattern 310-315 Conductive path 325 Conductive path (conductive plate)
326 Conductive path (conductive plate)
33 Circuit pattern 331, 335-337 Conductive path

Claims (4)

A box-shaped assembled battery comprising a plurality of metal-air battery cells having a substantially rectangular parallelepiped shape and a housing for storing the metal-air battery cells,
In each of the metal-air battery cells, a positive electrode terminal and a negative electrode terminal are disposed in the upper part,
The case is composed of a case main body having an upper opening, and a lid part that is mounted so as to cover the opening of the case main body.
A positive electrode terminal and a negative electrode terminal as the assembled battery are attached to the lid portion,
When this is mounted on the inner surface of the lid portion, the metal-air battery cells come into contact with the positive and negative terminals of the metal-air battery cells housed in the housing body, and the metal-air battery cells are connected in series or in parallel. A circuit pattern is formed that connects the positive terminal as the assembled battery and the positive terminal of the metal-air battery cell, and connects the negative terminal of the metal-air battery cell and the negative terminal as the assembled battery. A battery pack characterized by having k (where k is an integer of 2 or more) the metal-air battery cells are stored in the housing,
The circuit pattern is a pattern for connecting the metal-air battery cells in series,
A conductive path connecting the positive electrode terminal as the assembled battery and the positive electrode terminal of the first metal-air battery cell;
A conductive path connecting the negative terminal of the nth metal air battery cell (where n is an integer from 1 to (k-1)) and the positive terminal of the (n + 1) th metal air battery cell;
2. The assembled battery according to claim 1, further comprising a conductive path connecting the negative electrode terminal of the kth metal-air battery cell and the negative electrode terminal as the assembled battery. The circuit pattern is a pattern for connecting the metal-air battery cells in parallel,
A conductive path connecting the positive terminals of the metal-air battery cells;
A conductive path connecting the conductive path and a positive electrode terminal as an assembled battery;
A conductive path connecting the negative terminals of the metal-air battery cells;
The assembled battery according to claim 1, further comprising a conductive path connecting the conductive path and a negative electrode terminal as the assembled battery. The positive electrode terminal as the assembled battery is disposed on one of the front surface and the back surface of the housing, and on the left or right side surface of the housing, and the first positive electrode A second positive terminal electrically connected to the terminal,
The negative electrode terminal as the assembled battery is disposed on a first negative electrode terminal disposed on a surface of the casing on which the first positive electrode terminal is disposed, and on a left or right side surface of the casing, and A second negative electrode terminal electrically connected to the negative electrode terminal;
The first positive electrode terminal and the first negative electrode terminal are in a line-symmetrical position with respect to a vertical line that bisects the surface of the housing where the first positive electrode terminal and the first negative electrode terminal are arranged,
2. The assembled battery according to claim 1, wherein the second positive electrode terminal and the second negative electrode terminal are located on the same straight line orthogonal to both the right side surface and the left side surface of the housing.

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