JP6959067B2 - Metal-air battery and how to use it - Google Patents

Description

The present invention relates to a metal-air battery and how to use it.

In a metal-air battery, oxygen in the atmosphere is used as a positive electrode active material at the air electrode, which is the positive electrode, and the redox reaction of the oxygen is performed. On the other hand, a metal redox reaction is carried out at the metal electrode which is the negative electrode. The energy density of metal-air batteries is high, and it is expected to play a role as an emergency power source in the event of a disaster. Power generation is started by supplying the electrolytic solution to the metal-air battery.

Conventionally, various metal-air battery structures have been proposed (for example, Patent Documents 1 to 4).

According to Patent Document 1, an electrolytic solution is injected into a cell in which a metal electrode and an air electrode are incorporated in a housing to generate electricity.

According to Patent Document 2, a container containing an electrolytic solution is prepared separately from the cell in which the metal electrode and the air electrode are incorporated in the housing, and the electrolytic solution flows into the cell by putting the cell in the container. It is made to generate electricity.

According to Patent Document 3, a configuration is disclosed in which a cell having a metal electrode and an air electrode is placed in a tank into which an electrolytic solution is injected, and the metal electrode and the air electrode are brought into contact with the electrolytic solution.

According to Patent Document 4, a metal-air battery in which a plurality of metal-air battery cells are connected is disclosed. The electrolytic solution is individually injected into each metal-air battery cell.

Japanese Unexamined Patent Publication No. 2016-131063 Japanese Unexamined Patent Publication No. 2016-71986 Japanese Unexamined Patent Publication No. 62-177873 Japanese Unexamined Patent Publication No. 2016-152133

However, in the past, when generating electricity from a metal-air battery, it was necessary for the user to prepare an electrolytic solution and inject the prepared electrolytic solution into the metal-air battery. Therefore, it took time and effort to start power generation.

The present invention has been made in view of the above points, and provides a metal-air battery that can be easily used without the trouble of preparing and injecting an electrolytic solution by the user, and a method of using the same. The purpose is.

The metal-air battery of the present invention includes a metal-air battery main body, a case capable of accommodating an electrolytic solution and the metal-air battery main body, and a bag-shaped material containing the electrolytic solution, and the bag-shaped material is housed. in the case that is, the metal-air battery body by insert and damaging the bag-like material, said electrolytic solution is supplied to the liquid chamber with an electrode of the metal-air battery body, the metal-air Depending on the orientation of the battery body with respect to the case, the metal-air battery body can be inserted to a position where the bag-shaped object can be damaged, or the metal-air battery body can be inserted so as not to damage the bag-shaped object. An insertion control unit that regulates the height is formed between the metal-air battery body and the case, and the insertion control unit has one facing surface formed of a groove and the other facing surface. It is formed by a convex portion corresponding to the groove, and by matching the phases of the groove and the convex portion, the metal-air battery body can be inserted into the case to a position where the bag-shaped object can be damaged. By shifting the phase of the groove and the convex portion, the insertion height of the metal-air battery main body into the case is regulated so as not to damage the bag-shaped object .
The metal-air battery of the present invention includes a metal-air battery main body, a case capable of accommodating an electrolytic solution and the metal-air battery main body, and a bag-shaped material containing the electrolytic solution, and the bag-shaped material is housed. By inserting the metal-air battery main body into the case to damage the bag-shaped object, the electrolytic solution is supplied to the liquid chamber provided with the electrodes of the metal-air battery main body, and the metal air is supplied. Depending on the orientation of the battery body with respect to the case, the metal-air battery body can be inserted to a position where the bag-shaped object can be damaged, or the metal-air battery body can be inserted so as not to damage the bag-shaped object. The insertion control unit that regulates the height is formed between the outer surface of the metal-air battery main body and the inner wall surface of the case facing the outer surface.

In the present invention, it is preferable to push the metal-air battery body into the case while moving it straight, or insert it while rotating it to damage the bag-shaped object.

In the present invention, the metal-air battery body can be inserted to a position where the bag-shaped object can be damaged, or the bag-shaped object is not damaged, depending on the orientation of the metal-air battery body with respect to the case. It is preferable that the insertion control unit that regulates the insertion height of the metal-air battery body is formed between the metal-air battery body and the case.

In the present invention, in the insertion control unit, one facing surface is formed by a groove, and the other facing surface is formed by a convex portion corresponding to the groove, and the phase of the groove and the convex portion is set. By matching, the metal-air battery body can be inserted into the case to a position where the bag-shaped object can be damaged, and the phase of the groove and the convex portion is shifted so that the bag-shaped object is not damaged. As described above, it is preferable to regulate the insertion height of the metal-air battery body into the case.

In the present invention, the insertion control unit restricts the insertion of the metal-air battery body to the middle of the case in a state of restricting the insertion height of the metal-air battery body, and the bag-shaped object is formed. , It is preferable that the metal-air battery body inserted halfway can be accommodated in the space between the case and the metal-air battery body so as not to be damaged.

Using metal-air battery of the present invention, a metal-air battery body, and capable of accommodating the electrolyte solution and the metal-air battery body case, according to the above to have a, a bag-like product containing the said electrolyte A method of using a metal-air battery, in which the bag-shaped object is housed in the case, the orientation of the metal-air battery body with respect to the case is adjusted, and the metal-air battery is moved to a position where the bag-shaped object can be damaged. The battery body is inserted to damage the bag-shaped object, and the electrolytic solution released into the case due to the damage is supplied to the liquid chamber provided with the electrodes of the metal-air battery body to start power generation. It is characterized by being done.

According to the metal-air battery of the present invention, it is possible to save the trouble of preparing and injecting the electrolytic solution by the user, and anyone can use it easily and quickly. Therefore, the convenience as an emergency battery can be improved as compared with the conventional case.

It is sectional drawing of the metal-air battery which shows the state before inserting the metal-air battery main body of 1st Embodiment into a case. It is sectional drawing of the metal-air battery which shows the state which inserted the metal-air battery main body of 1st Embodiment into a case. FIG. 3A is a top view of the metal-air battery main body of the second embodiment, and FIG. 3B is a side view of the metal-air battery main body. FIG. 4A is a top view of the case of the second embodiment, and FIG. 4B is a cross-sectional view taken along the line AA shown in FIG. 4A and viewed from the direction of an arrow. FIG. 5A is a top view showing a state in which the metal-air battery main body and the case of the second embodiment have different phases of the grooves and the convex portions, and the metal-air battery main body is inserted halfway through the case. FIG. 5B is a top view. Is a side view thereof, and FIG. 5C is a cross-sectional view taken along the line BB shown in FIG. 5B and viewed from the direction of the arrow. FIG. 6A is a top view showing a state in which the metal-air battery main body of the second embodiment is aligned with the groove and the convex portion of the case and the metal-air battery main body is inserted all the way into the case, and FIG. 6B is a top view. 6C is a cross-sectional view taken along the line CC shown in FIG. 6B and viewed from the direction of the arrow. FIG. 7A is a side view of the metal-air battery main body and the case of the third embodiment, and FIG. 7B is a cross-sectional view taken along the line DD shown in FIG. 7A and viewed from the direction of an arrow. 8A is a top view showing a state in which the metal-air battery main body of the third embodiment is inserted into the case, FIG. 8B is a side view thereof, and FIG. 8C is along the line EE shown in FIG. 8B. It is a cross-sectional view seen from the direction of the arrow.

Hereinafter, one embodiment of the present invention (hereinafter, abbreviated as “embodiment”) will be described in detail. The present invention is not limited to the following embodiments, and can be variously modified and implemented within the scope of the gist thereof.

As shown in FIG. 1, the metal-air battery 1 includes a metal-air battery main body 2, a case 3, and a bag-shaped object 4 containing an electrolytic solution.

As shown in FIG. 1, the metal-air battery body 2 includes, for example, a plurality of metal-air battery cells 22. In FIG. 1, the number of the metal-air battery cells 22 is three, but the number of the metal-air battery cells 22 is not limited, and may be one, two, or four. It may be one or more.

Each metal-air battery cell 22 is provided with an air chamber 10 and a liquid chamber 11. The air chamber 10 is surrounded by, for example, except for the upper part. On the other hand, the liquid chamber 11 is surrounded by the periphery except for the water supply port 13. In FIG. 1, the water supply port 13 is provided in the lower part of the liquid chamber 11. The air chamber 10 and the liquid chamber 11 are separated from each other, and the electrolytic solution injected into the liquid chamber 11 does not leak into the air chamber 10. The structure of the air chamber 10 and the liquid chamber 11 shown in FIG. 1 is an example. For example, the water supply port 13 of the liquid chamber 11 may be provided on the side portion instead of the lower portion. The configuration of the water supply port 13 will be described in detail later. Further, although not shown in FIG. 1, a ceiling portion (cover body) may be attached to the upper surface of the metal-air battery cell 22. The ceiling may be provided with an opening leading to the air chamber 10 of each metal-air battery cell 22. Further, an external connection terminal for supplying the battery output to the outside can be installed on the ceiling. The external connection terminal is a connector, a USB terminal, or the like, and is not particularly limited. The installation position of the external connection terminal is not limited to the ceiling portion, and the installation position can be arbitrarily set with respect to the metal-air battery 1.

As shown in FIG. 1, each metal-air battery cell 22 includes an air electrode 6 and a metal electrode 7 as electrodes. The air pole 6 and the metal pole 7 are each supported by a housing constituting the metal-air battery cell 22. As shown in FIG. 1, the air pole 6 and the metal pole 7 are arranged to face each other in the liquid chamber 11. One surface of the air electrode 6 is exposed to the liquid chamber 11, and the other surface of the air electrode 6 is exposed to the air chamber 10.

As shown in FIG. 1, the metal pole 7 is arranged at a position separated from the air pole 6 in the liquid chamber 11 by a predetermined distance. The upper part of the metal pole 7 is fixed, but the lower part is a free end (non-fixed).

The case 3 shown in FIG. 1 is a container having a size capable of accommodating the electrolytic solution and the metal-air battery main body 2. When the metal-air battery 1 is not in use, for example, the case 3 shown in FIG. 1 can be put on the metal-air battery main body 2. Alternatively, the metal-air battery body 2 can be restricted so that it can be inserted only halfway from the upper portion 3a side of the case 3 so as not to crush the bag-shaped object 4 arranged in the case 3. The regulation method will be described later.

An electrolytic solution such as a saline solution is contained inside the bag-shaped object 4 shown in FIG. In the bag-shaped object 4, when the metal-air battery 1 is not in use, the electrolytic solution does not leak (it is unlikely to change with time), and the pressing force, twisting force, and shearing force due to the insertion of the metal-air battery body 2 into the case 3 The material is not particularly limited as long as it can be damaged by cutting force or the like and does not affect the power generation characteristics. For example, the bag-shaped object 4 can be exemplified by a plastic film, an aluminum film, or the like.

Further, the bag-shaped object 4 may have a flexible structure or a rigid structure as long as it can be damaged.

As shown in FIG. 1, with the bag-shaped object 4 installed on the bottom surface of the case 3, the metal-air battery body 2 is inserted into the case 3 from the open upper portion 3a of the case 3.

FIG. 2 shows a state in which the metal-air battery body 2 is pushed all the way into the case 3, the bag-shaped object 4 in the case 3 is damaged, and the electrolytic solution 5 is supplied into the liquid chamber 11 of each metal-air battery cell 22. show. In FIG. 2, the electrolytic solution 5 is discharged into the case 3 from the damaged bag-shaped object 4, and at this time, the electrolytic solution 5 is guided into each liquid chamber 11 from the water supply port 13 of each metal-air battery cell 22. The electrolytic solution 5 is simultaneously injected into each liquid chamber 11 via the water supply port 13. At this time, as shown in FIG. 2, the electrolytic solution 5 does not flow into the air chamber 10.

As shown in FIG. 2, when the electrolytic solution 5 is supplied to the liquid chamber 11, for example, when the metal pole 7 is magnesium, the oxidation reaction shown in (1) below occurs in the vicinity of the metal pole 7. Further, at the air electrode 6, the reduction reaction shown in (2) below occurs. As a whole magnesium-air battery, the reaction shown in (3) below occurs and discharge is performed.
(1) 2Mg → 2Mg ²⁺ + 4e ⁻
_{(2) O 2 + 2H 2} O + 4e - → 4OH -
(3) 2Mg + O ₂ + 2H ₂ O → 2Mg (OH) ₂

In the embodiment shown in FIG. 2, the water supply port 13 is provided at the bottom of each metal-air battery cell 22, but the bag-shaped object 4 closes the water supply port 13 and the electrolytic solution 5 is appropriately used for each metal-air battery. If it may not enter the liquid chamber of the cell 22, the water supply port 13 may be provided on the side portion, or may be provided on both the bottom portion and the side portion. Further, it is possible to provide the water supply port 13 at the upper part of each liquid chamber 11, but in that case, it is necessary to position the water supply port 13 below the opening 10a of the air chamber 10.

Further, although not shown, it is preferable that a hole for discharging a generated gas such as hydrogen generated by the battery reaction from the liquid chamber 11 to the outside is provided around the metal electrode 7.

If there is no particular problem in providing the water supply port 13 at the bottom of each metal-air battery cell 22, quick water supply becomes possible, which is preferable. Further, the number of water supply ports 13 for the liquid chamber 11 of each metal-air battery cell 22 may be one or a plurality. Further, the shape of the water supply port 13 is not limited, and examples thereof include a circular shape, an elliptical shape, a polygonal shape, and a long shape.

Further, as shown in FIG. 2, it is preferable that the metal pole 7 is arranged so as to face the water supply port 13 provided at the bottom of each metal-air battery cell 22. The product generated during the redox reaction between the metal pole 7 and the air pole 6 is easily released to the case 3 side through the water supply port 13. As a result, it is possible to suppress damage to the electrodes and deterioration of electrical characteristics due to the accumulation of the product in each metal-air battery cell 22.

Further, even when the water supply port 13 is provided other than the bottom of each metal-air battery cell 22, for example, the water supply port 13 is arranged below the side portion of the metal-air battery cell 22, and the metal pole 7 is provided on the water supply port 13. May be arranged to face each other. The "lower side of the side portion 8b" is the lower half of the height dimension of the side portion, preferably the lower portion of 1/2 or less of the height dimension, and more preferably 1/3 or less of the height dimension. The lower part. This also allows the release effect of the product to be obtained. The electrolytic solution 5 released into the case 3 by inserting the metal-air battery body 2 into the case 3 and damaging the bag-shaped object 4 does not reach the upper part of the metal-air battery body 2. If the electrolytic solution 5 can be put into the liquid chamber 11, the position of the water supply port 13 is not questioned.

Further, in the present embodiment, the lower portion of the metal pole 7 is a free end. As a result, the metal pole 7 can be appropriately arranged so as to face the water supply port 13. Further, by setting the lower part of the metal pole 7 as a free end, the lower part of the metal pole 7 can be swung. Therefore, when a product is deposited between the air pole 6 and the metal pole 7, the metal pole 7 can be flexed, the pressing force due to the product can be relaxed, and the metal pole 7 and the metal pole 6 can be bent. Damage can be suppressed.

For example, in FIG. 1, a protrusion 20 is provided on the lower surface of the metal-air battery body 2 in order to easily damage the bag-shaped object 4 when the metal-air battery body 2 is inserted into the case 3. .. As a result, when the metal-air battery body 2 comes into contact with the bag-shaped object 4 or with a weak pressing force, the protrusion 20 can penetrate the surface of the bag-shaped object 4 and appropriately damage the bag-shaped object 4. .. The protrusion 20 is preferably needle-shaped, but may be non-needle-shaped. Further, one or a plurality of protrusions 20 may be provided.

Hereinafter, another embodiment having a structure partially different from that of the first embodiment will be described. In the other embodiment as well, as in the first embodiment, the metal-air battery main body 22 is inserted into the case 3, the bag-shaped object 4 is damaged, and each metal air is generated by the electrolytic solution 5 released due to the damage. There is no change in the point that the electrolytic solution 5 is supplied to the liquid chamber 11 of the battery cell 22. Further, in the following embodiment, the air chamber 10, the air pole 6 and the metal pole 7 are not shown in detail, but the configuration is the same as that of the first embodiment.

3 and 4 show a top view and a side view of the metal-air battery main body 2 and the case 3 of the second embodiment. As shown in FIGS. 3A and 3B, the outer surface of the metal-air battery body 2 is provided with a linear groove 21 extending from the upper surface to the lower surface.

On the other hand, a ridge portion 22 is formed on the inner wall surface of the case 3. The groove 21 and the convex portion 22 form an "insertion control unit 24". The ridge portion 22 is provided only below the inner wall surface of the case 3. That is, the inner wall surface above the ridge portion 23 is a flat surface. Further, the width of the convex portion 22 is narrower than the width of the groove 21. Therefore, the metal-air battery main body 2 can be inserted to the bottom of the case 3 by matching the phases of the convex portion 22 and the groove 21. On the other hand, if the grooves 21 and the ridges 23 are out of phase, the metal-air battery body 2 cannot be inserted to the bottom of the case 3.

Now, as shown in FIGS. 5A to 5C, the metal-air battery body 2 is inserted into the case 3 with the grooves 21 and the ridges 22 having different phases. Since there is nothing blocking the insertion of the metal-air battery body 2 up to the height position of the ridge portion 22 provided on the inner wall surface of the case 3, the metal-air battery body 2 can be inserted into the case 3. In other words, the metal-air battery body 2 cannot be inserted below the height position of the ridges 22, and the height of the ridges 22 is between the metal-air battery body 2 and the case 3. A space 25 similar to that is formed. If the bag-shaped object 4 containing the electrolytic solution is arranged in this space 25 and the phases of the groove 21 and the convex portion 23 are different from each other, the bag-shaped object 4 is damaged by the insertion of the metal-air battery main body 2. There is nothing to do. In FIG. 5C, the convex portion 22 formed on the inner wall surface of the case 3 is shown through the bag-shaped object 4. For example, as shown in FIGS. 5A to 5C, by arranging the bag-shaped object 4 in the case 3 and making the phases of the groove 21 and the convex portion 22 different from each other, the bag-shaped object 4 is made of metal air. The battery body 2 can be properly stored between the battery body 2 and the case 3.

On the other hand, when the metal-air battery 1 is used (during power generation), the metal-air battery body 2 in the states of FIGS. 5A to 5C is removed from the case 3, and the metal-air battery body 2 is 90 relative to the case 3. Rotate the degree. As a result, the grooves 21 and the convex portions 22 are in phase with each other. In this state, the metal-air battery body 2 is inserted into the case 3. The inserted state is shown in FIGS. 6A to 6C. As a result, the metal-air battery body 2 can be pushed all the way into the case 3, and the bag-shaped object 4 arranged in the case 3 can be damaged. Then, as shown in FIG. 6C, the electrolytic solution 5 is discharged from the damaged bag-shaped object 4, and the electrolytic solution 5 is supplied to the liquid chamber 11 through the water supply port 13 of the metal-air battery main body 2.

The ridge portion 23 is formed in an elongated strip shape, but for example, a ridge portion having a short length may be formed.

Further, in the second embodiment described above, the groove 21 is formed in the metal-air battery main body 2 and the ridge portion 23 is formed in the case 3, but the ridge portion 23 is formed in the metal-air battery main body 2. The groove 21 may be formed in the case 3. In this case, the ridge portion 23 is formed only in the upper portion of the metal-air battery main body 2, and the groove 21 is formed from the upper end to the lower end of the inner wall surface of the case 3.

Further, one or more sets of the groove 21 and the convex portion 23 may be provided.

The metal-air battery main body 2 of the above-described embodiment has a polygonal columnar shape such as a cube or a rectangular parallelepiped, but may be cylindrical as shown below.

When the metal-air battery body 2 has a polygonal column shape, the metal-air battery body 2 is inserted while advancing straight into the case 3, but when the metal-air battery body 2 is cylindrical, the metal-air battery body 2 is inserted while rotating inside the case 3. be able to. For example, as shown in FIGS. 7A and 7B, the columnar metal-air battery body 32 is formed with, for example, two convex portions 34 on both sides facing each other. On the other hand, a female screw portion 36 is formed on the inner wall surface of the case 33. The female threaded portion 36 is formed of a spiral groove. As shown in FIG. 7B, with the bag-shaped object 4 containing the electrolytic solution arranged in the case 33, the convex portion 34 of the metal-air battery main body 32 is aligned with the groove of the female screw portion 36, and the metal-air battery main body is aligned. Insert the case 33 in the back direction while rotating the 32. In FIG. 7B, the female screw portion 36 is shown through the bag-shaped object 4.

8A to 8C show a state in which the metal-air battery main body 32 shown in FIGS. 7A and 7B is inserted into the case 33. At this time, a twisting force or a shearing force is applied to the bag-shaped object 4 arranged in the case 33 from the metal-air battery main body 32, and the bag-shaped object 4 can be damaged. As a result, as shown in FIG. 8C, the electrolytic solution 5 is discharged from the damaged bag-shaped object 4, and the electrolytic solution 5 is supplied to the liquid chamber 11 through the water supply port 13 of the metal-air battery main body 32.

As described above, in the present embodiment, when the metal-air battery main body is inserted into the case, the electrolytic solution can be easily supplied by damaging the bag-shaped object containing the electrolytic solution. That is, when generating electricity from a metal-air battery, the user can save the trouble of preparing the electrolytic solution by himself or injecting the electrolytic solution into the main body of the metal-air battery, and anyone can easily and quickly generate electricity. be able to. Therefore, the convenience as an emergency battery can be improved as compared with the conventional case.

In the present embodiment, the metal-air battery main body is pulled up from the power generation state of FIGS. 2, 6 and 8, and the electrolytic solution 5 is drained from the liquid chamber 11 of each metal-air battery cell via the water supply port 13. By doing so, power generation can be easily stopped.

Further, the electrodes of the metal-air battery cells 22 may be connected in series or in parallel, and the wiring method is not particularly limited.

Further, the metal-air battery 1 in the present embodiment can be applied to either a magnesium-air battery or another metal-air battery.

According to the metal-air battery of the present invention, anyone can easily and quickly generate electricity simply by pushing the metal-air battery body into the case. Therefore, the metal-air battery of the present invention can be effectively applied as an emergency power source or the like in the event of a disaster or the like.

1 Metal-air battery 2, 32 Metal-air battery body 3, 33 Case 4 Bag-shaped 5 Electrolyte 6 Air pole 7 Metal pole 8 Housing 10 Air chamber 11 Liquid chamber 12 Side wall 13 Water supply port 20 Protrusion 21 Groove 22 Metal Air battery cell 23 Convex part 24 Insertion control part 25 Space 34 Convex part 36 Female thread part

Claims (5)

It has a metal-air battery main body, a case capable of accommodating the electrolytic solution and the metal-air battery main body, and a bag-shaped object containing the electrolytic solution.
By inserting the metal-air battery body into the case in which the bag-shaped object is housed and damaging the bag-shaped object, the electrolytic solution is placed in the liquid chamber provided with the electrodes of the metal-air battery body. is supplied,
Depending on the orientation of the metal-air battery body with respect to the case, the metal-air battery body can be inserted to a position where the bag-shaped object can be damaged, or the metal-air battery can be inserted so as not to damage the bag-shaped object. An insertion control unit that regulates the insertion height of the main body is formed between the metal-air battery main body and the case.
One of the facing surfaces of the insertion control unit is formed of a groove, and the other facing surface is formed of a convex portion corresponding to the groove. By matching the phases of the groove and the convex portion, the insertion control unit is formed. The metal-air battery body can be inserted into the case to a position where the bag-shaped object can be damaged, and the phase of the groove and the convex portion is shifted so that the bag-shaped object is not damaged. A metal-air battery characterized in that the insertion height of the metal-air battery body into the case is regulated. It has a metal-air battery main body, a case capable of accommodating the electrolytic solution and the metal-air battery main body, and a bag-shaped object containing the electrolytic solution.
By inserting the metal-air battery body into the case in which the bag-shaped object is housed and damaging the bag-shaped object, the electrolytic solution is placed in the liquid chamber provided with the electrodes of the metal-air battery body. is supplied,
Depending on the orientation of the metal-air battery body with respect to the case, the metal-air battery body can be inserted to a position where the bag-shaped object can be damaged, or the metal-air battery can be inserted so as not to damage the bag-shaped object. An insertion control unit that regulates the insertion height of the main body is formed between the outer surface of the metal-air battery main body and the inner wall surface of the case facing the outer surface. .. The metal-air battery according to claim 1 or 2 , wherein the metal-air battery body is pushed into the case while being driven straight or inserted while being rotated to damage the bag-shaped object. .. In the state where the insertion height of the metal-air battery body is restricted, the insertion control unit restricts the insertion of the metal-air battery body so that it can be inserted halfway through the case, and the bag-shaped object is inserted halfway. The metal-air battery according to any one of claims 1 to 3, wherein the metal-air battery can be accommodated in the space between the metal-air battery main body and the case so as not to be damaged. A metal-air battery body, the metal-air as claimed in any one of claims 4 to chromatic and the case capable of housing the bag-like objects enclosing the electrolytic solution, the electrolytic solution and the metal-air battery body How to use the battery
The bag-shaped object is housed in the case,
The orientation of the metal-air battery body with respect to the case is adjusted, and the metal-air battery body is inserted to a position where the bag-shaped object can be damaged to damage the bag-shaped object.
A method of using a metal-air battery, wherein the electrolytic solution discharged into the case due to the breakage is supplied to a liquid chamber provided with an electrode of the metal-air battery body to start power generation.

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