JP3532109B2 - Battery mounting method and mounting device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of mounting a battery mounted on a device mounted at a place where centrifugal force is applied.

[0002]

2. Description of the Related Art An electrochemical reaction in a battery is based on ionic conduction in an electrolytic solution existing between a positive electrode material and a negative electrode material. Generally, the electrolytic solution exists in a state of being impregnated in a separator interposed between a positive electrode material and a negative electrode material, and contributes to a redox reaction between the positive and negative electrodes.

[0003]

However, when the battery is mounted on a device to which a centrifugal force is applied, the electrolytic solution flowing due to the centrifugal force reduces the amount of the electrolytic solution that contributes to the redox reaction, which may deteriorate the battery performance. Occurs. For example, a battery used to operate a device configured to measure the air pressure of an automobile tire even while the automobile is running is subjected to centrifugal force due to the rotation of the tire.

It is an object of the present invention to provide a battery mounting method which does not deteriorate the battery performance even when used in a device to which a centrifugal force is applied.

[0005]

The first invention of the present application for achieving the above object is to provide a positive electrode material in a battery case and a light metal .
A negative electrode material mainly composed of a metal or an alloy mainly composed of this light metal is arranged to face each other via a separator, and a battery in which an electrolytic solution is filled between the positive and negative electrode materials is mounted on a rotating body. In the method of mounting a battery to be mounted on the device, the battery is mounted on the device so that the negative electrode material exists in the direction of the centrifugal force applied to the device.

According to this mounting method, since the battery is mounted in the direction in which the negative electrode material exists in the centrifugal force direction, the electrolytic solution flowing by the centrifugal force is not present in the reaction surface of the negative electrode material facing the positive electrode material. It is maintained and the battery performance is not degraded even if the battery is mounted on a device to which centrifugal force is applied.

Further, the second invention of the present application is such that the positive electrode material and the light metal or the light metal is mainly contained in the battery case.
A negative electrode material mainly composed of gold is opposed to each other via a separator, and a battery filled with an electrolyte between positive and negative electrode materials is attached to a device mounted on a rotating body. 0 to 6 for the direction of centrifugal force
It is characterized in that the battery is mounted on the device so that the negative electrode material side faces within an angle range of 0 degree.

[0008] As the inclination angle increases from the mounting angle of the battery in which the negative electrode is oriented in the direction of the centrifugal force, the electrolytic solution existing on the reaction surface of the negative electrode decreases under the condition that the centrifugal force is applied, but within 60 degrees. With an inclination angle of, the discharge capacity does not decrease extremely unless an excessive centrifugal force is applied, and the device can be operated in a range that does not hinder practical use.

A third invention of the present application is mainly directed to a positive electrode material and a light metal or an alloy mainly composed of the light metal in a battery case.
A negative electrode material to be a body is arranged to face each other via a separator, a battery filled with an electrolytic solution between the positive and negative electrode materials, a battery mounting device to be mounted in a device mounted in a place where centrifugal force is applied, in the device, It is characterized in that the battery is mounted at a predetermined position of the device by using a mounting means that regulates the negative electrode material side so as to face within a predetermined angle range with respect to the direction of the applied centrifugal force.

According to the above construction, the battery is restricted by the mounting means so that the negative electrode material side faces within a predetermined angle range with respect to the direction of the centrifugal force. Therefore, even if the battery is mounted on the device to which the centrifugal force is applied, The movement of the electrolytic solution due to the centrifugal force does not cause the battery to malfunction.

The mounting means in the above structure is configured so that the mounting direction is restricted by a mounting structure in which the outer shape of the battery is different from the positive electrode side and the negative electrode side, and only the one electrode shape is fitted. be able to. Since the outer shape of the battery is different on the positive and negative sides, mounting the battery using a mounting structure that fits on either side will reduce the effect of centrifugal force on the battery. Can be attached to.

In the above battery mounting method, a battery having a flat battery case is divided into two in the thickness direction, and the volume occupied by the negative electrode material, the positive electrode material, and the separator from the internal volume of the battery case at each divided portion. When the void volume is calculated by subtracting, the battery can be attached so that the divided portion on the side where the negative electrode material is arranged is smaller than the divided portion on the other side. The decrease in battery performance due to the action of centrifugal force on the battery is because the electrolyte solution is not sufficiently present on the surface of the negative electrode material during the electromotive reaction, and there is the negative electrode material on the side where the void volume is small, If the battery is installed so that this is in the direction of centrifugal force, the electrolyte does not move on the side where the void volume is small, and the state in which the electrolyte exists on the surface of the negative electrode material is maintained. Is suppressed.

The battery used in the method of mounting the battery has a positive electrode material mainly containing a metal oxide, a halide or a sulfide and a negative electrode material mainly containing a light metal or an alloy thereof in a battery case. And the heat-resistant temperature is 150
Arranged facing each other via a separator made of a material of ℃ or more,
A solvent having a boiling point of 1 is provided between the positive electrode material and the negative electrode material.
An organic solvent having a temperature of 70 ° C. or higher is charged with an electrolyte solution in which a lithium salt is dissolved as a solute in a single substance or a mixture, and a heat resistant temperature is 1
The opening of the battery case can be sealed with a sealing plate through a gasket having an organic solvent resistance of 50 ° C. or higher. By thus forming the separator and the gasket, the electrolytic solution with a material that withstands high temperatures, gasification due to high temperature of the electrolytic solution is suppressed, deterioration of the separator and gasket due to high temperature is prevented, and in an environment where centrifugal force acts. Since it is often exposed to high heat at the same time, the heat resistant structure of the battery is effective.

The material of the separator can be selected from glass fiber, polyphenylene sulfide resin, polyvinylidene fluoride resin, polytetrafluoroethylene resin, polybutylene terephthalate resin, and ceramic fiber. Since these materials have a heat resistant temperature of 150 ° C. or higher, the separator is not deteriorated even in a high temperature environment.

The organic solvent is gamma-butyrolactone, propylene carbonate, ethylene carbonate,
It can be selected from butylene carbonate, sulfolane, 3 methyl sulfolane. Gamma butyrolactone,
Propylene carbonate, ethylene carbonate, and butylene carbonate have a boiling point of 170 ° C. or higher, so that gasification in a high temperature environment is suppressed, and in order to further improve reliability in a high temperature environment, sulfolane having a boiling point of 200 ° C. or higher, 3
Methylsulfolane can be used alone or as a mixture of both.

The gasket is made of polyphenylene sulfide resin, polyetherketone resin, polyetheretherketone resin, polytetrafluoroethylene resin,
It can be selected from vinylidene tetrafluoride resin, and since these have a heat resistance temperature of 150 ° C or higher and organic solvent resistance, the sealing property is deteriorated due to deterioration in a high temperature environment and liquid leakage may occur. There is no.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.

A battery is composed of three basic elements, a positive electrode material, a negative electrode material, and an electrolytic solution. The electrolytic solution exists between the positive electrode material and the negative electrode material and contributes to the electrochemical reaction between the positive and negative electrodes. When this battery is used in a state in which centrifugal force is applied, for example, when it is used as a power source for operating a device attached to a rotating body such as an automobile tire, the battery is subjected to centrifugal force and is a fluid. Since the electrolytic solution flows in the direction of centrifugal force, it may not contribute to the electrochemical reaction of the battery if the mounting angle of the battery is not appropriate.

In order to verify the change in battery performance due to this centrifugal force, the following test was carried out.

In the test, a flat graphite lithium battery as shown in FIG. 1 was mounted on a rotary tester and rotated, and the discharge capacity (mAh) depending on the mounting angle of the battery with respect to the direction of centrifugal force due to rotation. ) Was measured.

In the lithium graphite fluoride battery shown in FIG. 1, a negative electrode 2 formed in a plate shape with lithium metal in a battery case 5, and a positive electrode 3 formed in a plate shape with a material containing fluorinated graphite as a main component. Are stacked and arranged with a separator 4 formed of a polypropylene nonwoven fabric interposed therebetween, and filled with an electrolytic solution in which a lithium salt is dissolved in an organic solvent, and then a battery case 5 is formed by a sealing plate 1 and a gasket 6.
Is formed by sealing. Table 1 shows the utilization rate of the discharge capacity measured by applying a centrifugal force of 10 to 1000 G to the battery by changing the rotation speed of the rotation tester and changing the mounting angle of the battery with respect to the direction of the centrifugal force.

The graphite fluoride lithium battery (B
R2330) has external dimensions of 23 mm in diameter and 3 mm in thickness.
The discharge capacity of a constant resistance discharge of 15 kΩ at room temperature of 25 ° C. was measured, and the utilization rate of the discharge capacity was set to 100% of the discharge capacity of 255 mAh in the state where no centrifugal force was applied. It shows a state that changes depending on the mounting angle. Further, the confirmation of the discharge capacity is based on the termination of 2.0 V, and the average value of 20 tests is calculated and shown in consideration of the variation due to the battery. In the battery used in this experiment, the ratio of the electrolyte solution to the battery space volume was 4
It is 2 vol%.

[0023]

[Table 1]

As shown in FIG. 1, the mounting angle of the battery with respect to the centrifugal force direction is such that the central axis direction from the center of the positive electrode 3 to the center of the negative electrode 2 coincides with the centrifugal force direction, that is, the negative electrode 2
The angle at which the plate surface of is facing the direction of centrifugal force is 0 degree,
This is reversed and the angle at which the plate surface of the positive electrode 3 faces the centrifugal force is set to 180 degrees, and the change in the discharge capacity at each angle during this time is measured. As can be seen from these measurement results, when the mounting angle of the battery is 90 degrees or more, the discharge capacity is greatly reduced by the centrifugal force exceeding 50 G, and normal battery performance cannot be obtained. .

Therefore, when the centrifugal force increases, the mounting angle becomes zero.
Since the discharge capacity decreases at a temperature other than 100 degrees, when it is mounted on a device to which a centrifugal force is applied, it is necessary to mount it so that the negative electrode plate surface faces the centrifugal force direction. However, mounting angle 6
If it is 0 degrees or less, the discharge capacity does not drop extremely under the condition that a large centrifugal force is not applied. Therefore, in the above-mentioned device for measuring the air pressure of automobile tires, the installation angle should be 60 degrees or less. It can be said that there are few practical problems if the battery is installed in the.

It is considered that the decrease in discharge capacity due to the application of centrifugal force to the battery results in a state in which the negative electrode, which serves as the depolarizing surface during discharge, does not have sufficient electrolyte solution necessary for discharge. It occurs remarkably in the flat type battery in which the negative electrode and the negative electrode are arranged in parallel and face each other. Therefore, by applying the above-described attachment method to not only the lithium fluoride graphite battery but also various batteries formed in a button shape or a paper shape, it is possible to obtain a normal operation even in a state where a centrifugal force is applied.

The inventors of the present application have confirmed that the same effect can be obtained regardless of the type of electrolytic solution if the electrolytic solution occupies 20 to 70 vol% of the battery space volume. There is.

An embodiment of the mounting device for mounting the battery at the mounting angle as described above will be described below. Figure 2
Is a plan view showing the configuration of the first embodiment of the mounting device (a)
FIG. 4B is a sectional view (b) taken along the line AA of FIG.

FIG. 2 shows a graphite fluoride lithium battery (hereinafter,
The battery 10 is abbreviated as a power source, and the battery 10 is attached to a circuit board 12 of a device using the battery 10 as a power source. As shown in FIG. 1, the outer shape of the battery 10 formed in a circular flat shape is
Since the corners of the circumference of the negative electrode side are different from the corners of the positive electrode side, the mounting device is formed to have an inner surface shape that fits the shape of the negative electrode side of the battery 10 to prevent reverse loading of the battery 10. You can do it. Therefore, when the battery 10 is mounted using this mounting device, the negative electrode side of the battery 10 is mounted in a fixed direction.

As shown in FIG. 2 (b), the mounting device is a battery case 5 connected to the positive electrode 3 of the battery 10 (see FIG. 1).
A positive electrode plate 11 that contacts the negative electrode 2, a mounting member 8 that contacts the sealing plate 1 connected to the negative electrode 2 of the battery 10, and an insulating cover 9 that insulates the mounting member 8 from the battery case 5. Has been done.

The positive electrode plate 11 has a positive electrode terminal 1
1b is soldered to the plus power supply line of the circuit pattern formed on the circuit board 12, and is fixed on the circuit board 12 by means such as adhesion. Further, a ring-shaped positive electrode contact protrusion 11a is formed at a portion where the battery 10 is placed, and the contact protrusion 11a makes contact with the battery case 5 of the battery 10 to conduct electricity.

The insulating cover 9 is formed by resin molding, and an opening 9a for accommodating the sealing plate 1 portion of the battery 10 is formed in the center thereof, and the inner surface shape of the insulating cover 9 is the circumference of the battery 10. Battery 1 that matches the shape of the negative electrode
It is formed so as to fit on the negative electrode side of 0. A mounting member 8 is formed in a shape to cover the insulating cover 9, and a negative electrode contact protrusion 8a formed in the central portion of the mounting member 8 makes contact with the sealing plate 1 that has entered the opening 9a formed in the insulating cover 9. A mounting piece 8b is formed on the periphery of the mounting bracket 8 and the battery 10 is secured by screwing the mounting bracket 8 to the circuit board 12 using the screw hole 8c opened in the mounting piece 8b. Is mounted and fixed, and a conductive connection to the battery 10 is ensured. The fitting 8 is connected to the minus line of the circuit pattern formed on the circuit board 12 by the screw screwed into the circuit board 12 from the screw hole 8c.

Since the circuit board 12 is mounted so that the mounting surface side of the battery 10 is oriented in the centrifugal force direction of the device constructed by using the circuit board 12, the mounting direction on the negative electrode side is set by the above configuration. Since the negative electrode side of the battery 10 that is regulated and mounted on the circuit board 12 faces the direction of centrifugal force, it is possible to prevent the battery performance from being deteriorated by the movement of the electrolytic solution due to the centrifugal force as described above. Therefore, when the battery 10 is attached to the device to which the centrifugal force is applied, as shown in the above configuration, the battery 10 is attached so that the negative electrode side faces within the angle range of at least 60 degrees with respect to the direction of the centrifugal force, so that the discharge capacity becomes extremely high. Battery in a practical state that does not cause significant deterioration 1
0 can be used.

The battery mounting method for suppressing the deterioration of the battery performance due to the action of centrifugal force can also be configured as follows.

In FIG. 3, a battery 15 has a positive electrode terminal 13, a positive electrode terminal 13, and a positive electrode terminal 13 of the battery 10 of the first embodiment.
It is configured as a battery with a terminal to which the negative electrode terminal 14 is attached. This battery 15 has a positive electrode terminal 13 and a negative electrode terminal 1.
4 on the circuit board. The mounting direction at this time is as shown in the figure for the unit cell 10 (the same as the cell 10 in the first embodiment) excluding the positive electrode terminal 13 and the negative electrode terminal 14. When the battery case 5 is divided into two in the thickness direction, the side where the void volume in the battery case 5 is small is attached toward the centrifugal force direction.

The void volume is defined by the battery case 5 and the sealing plate 1.
The battery space volume in the battery case 5 when sealed by is the remaining volume occupied by the volume of the power generation element accommodated therein. In the case of the lithium graphite fluoride battery shown in FIG. 3, the outer dimensions are 23 mm in diameter and 3 mm in thickness, and the battery space volume is 761 μl. Further, the volume of solid matter such as the positive electrode 3, the negative electrode 2 and the separator 4 is 369 μl, and the volume of the electrolytic solution is 342 μl. Therefore, the void volume is 50 μl, and the proportion of the electrolytic solution in the battery space volume is 45 vol%. When this battery 10 is divided into two equal parts in the thickness direction, it is the negative electrode 2 side that the void volume becomes small. The void volume on the negative electrode 2 side is 12 μl. On the contrary, the void volume becomes large on the side where the positive electrode 3 is present, and the void volume on this side is 38 μl.

In such a flat type lithium graphite fluoride battery, the side with the smaller void volume is the side with the negative electrode 2, and if this is attached in a predetermined angle range toward the direction of centrifugal force, it will be affected by centrifugal force. The influence can be suppressed.

As described above, when a battery is used as the power source of the device for measuring and managing the air pressure of the automobile tire, the centrifugal force due to the rotation of the tire acts and at the same time the battery is exposed to a high temperature environment. For example, when an automobile runs on a slope while braking in the summer, the environmental temperature around the battery becomes a high temperature environment of 100 ° C to 150 ° C. When a battery is attached to a rotating body such as a tire in this way, an environment in which the influence of heat due to friction and the like as well as centrifugal force is inevitable often occurs.

When a conventional lithium battery is used or stored in a high temperature environment of 70 ° C. or higher, or subjected to a thermal shock load, the polypropylene resin (PP) used as a material for the separator or the gasket can be continuously used. Since the temperature is about 65 ° C., it deteriorates due to thermal oxidation and the like. The deterioration of the gasket causes a gap in the sealing portion, so that the electrolyte performance leaks or the performance of the battery deteriorates due to the intrusion of moisture from the outside.

In particular, when a low boiling point solvent such as dimethoxyethane (DME) is used as the solvent of the electrolytic solution,
The electrolytic solution is easily gasified at a temperature of 85 ° C. or higher and scattered from the minute gaps in the sealing portion.

When exposed to such a high temperature environment, a heat resistant structure can be adopted for the battery. In FIG.
As the separator 4 arranged between the negative electrode 2 and the positive electrode 3, a material having a heat resistant temperature of 150 ° C. or higher can be adopted. Materials corresponding to this can be selected and used from glass fiber, non-woven fabric of polyphenylene sulfide resin (PPS), polyvinylidene fluoride resin, polytetrafluoroethylene resin, polybutylene terephthalate (PBT) resin, and ceramic fiber. In these concrete materials, the average fiber diameter, weight per unit area, and average pore diameter of each material are set as follows.

Glass fiber average fiber diameter: 2 μm or less (0.3 to 1.5 μm is preferable) Unit weight: 5.0 to 9.0 g / m ² Average pore size: 3.0 to 7.5 μm PBT fiber average fiber diameter : 15 μm or less (0.5 to 10 μm is preferable) Unit weight: 25.0 to 100.0 g / m ² Average pore diameter: 10.0 to 60.0 μm PPS fiber Average fiber diameter: 30 μm or less (1.0 to 20 μm is Suitable) Weight per unit weight: 10.0 to 100.0 g / m ^{2 Further} , as the gasket 6, a material having a heat resistant temperature of 150 ° C. or higher and having an organic solvent resistance can be adopted. Materials corresponding to this can be selected and used from polyphenylene sulfide resin, polyetherketone resin (PEK), polyetheretherketone resin (PEEK), polytetrafluoroethylene resin, and vinylidene tetrafluoride resin. The boiling point of the electrolyte is 170.
Using an organic solvent of ℃ or more as a simple substance or a mixture,
It is possible to employ a solution in which a lithium salt is dissolved as a solute. The organic solvent may be selected from gamma butyrolactone (GBL), propylene carbonate, ethylene carbonate and butylene carbonate. Further, in order to further improve the reliability in a high temperature environment, sulfolane, 3 methyl sulfolane having a boiling point of 200 ° C. or higher can be used alone, or a mixture of both can be used.

Table 2 shows examples in which the above materials are applied to the gasket 6, the separator 4 and the electrolytic solution to form batteries, as Examples 1 to 6.

In order to verify the heat resistance of these Examples 1 to 6 and Comparative Examples 1 to 6 whose conventional battery configurations are shown in Table 2, the discharge capacity was 255 mAh.
After storing each battery set to, in a high temperature environment for 30 days,
Table 2 shows the results of measuring the discharge capacity and the capacity remaining rate by performing a discharge test in which the discharge resistance is 30 kΩ until the discharge end voltage is reached at an environmental temperature of 20 ° C. The number of battery samples is 20 for each battery, and the measured value is an average value of 20 samples. Further, in order to verify the deterioration of the battery due to thermal shock, each of the batteries of Examples 1 to 6 and Comparative Examples 1 to 6 was exposed to a low temperature environment of −20 ° C. and a high temperature environment of 80 ° C. The defective rate of the battery voltage and the leakage rate of the electrolytic solution were measured when 100 cycles of a thermal shock test were performed for a total of 4 hours as one cycle. The measurement results are also shown in Table 2. The number of battery samples is 200 for each battery, and the measured value is an average value of 200.

In Table 2, PPS is polyphenylene sulfide resin, PEK is polyetherketone resin,
PEEK is polyetheretherketone resin, GBL is gammabutyrolactone, DME is dimethoxyethane, E
P is an epoxy resin, PU is a polyurethane resin, and PET is a polyethylene terephthalate resin.

[0046]

[Table 2]

As is clear from the verification results shown in Table 2,
In the batteries of Comparative Examples 1 to 6 having the conventional configuration, the residual capacity of the discharge capacity is zero or very small in a high temperature environment, but the batteries of the present configuration using the heat resistant materials shown in Examples 1 to 6 are used. The discharge capacity residual rate is 70% or more, and practically acceptable battery performance is maintained even under severe conditions.

Further, in the thermal shock verification results, the batteries of Comparative Examples 1 to 6 having the conventional structure had a voltage failure, and the batteries of Comparative Examples 5 and 6 had 100% leakage. . On the other hand, in the batteries of Examples 1 to 6 using the heat-resistant material, there was no occurrence of voltage failure, and the batteries of Examples 1 and 5 had only a slight leakage.

[0049]

As described above, according to the present invention, by restricting the mounting angle of the battery mounted on the device to which the centrifugal force is applied, it is possible to prevent the electrolytic solution from decreasing with respect to the negative electrode reaction surface due to the centrifugal force. Even when the centrifugal force is applied, the battery can be normally operated. In addition, in many cases, a high temperature environment is simultaneously generated in an environment where a centrifugal force is applied, but by adopting a battery having a heat resistant structure, it is possible to suppress deterioration of battery performance due to high temperature.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the configuration of a graphite fluoride lithium battery which is an example of a flat type battery.

FIG. 2A is a plan view showing a configuration of a battery mounting device,
(B) is the sectional view on the AA line arrow.

FIG. 3 is a cross-sectional view showing the configuration of a flat battery with terminals.

[Explanation of symbols]

1 Seal plate 2 Negative electrode 3 positive electrode 4 separator 5 battery case 6 gasket 8 Mounting bracket (mounting means) 9 Insulation cover 10, 15 batteries

Continuation of front page (51) Int.Cl. ⁷ identification code FI H01M 2/16 H01M 2/16 MP 6/16 6/16 A (56) Reference JP-A-8-321287 (JP, A) JP HEI 7-69015 (JP, A) JP 7-290915 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01M 2/10 B60C 23/04

Claims (9)

(57) [Claims] 1. A positive electrode material and a light metal in a battery case.
Or, the negative electrode material consisting mainly of this light metal alloy is placed opposite to each other via the separator, and the battery filled with the electrolytic solution between the positive and negative electrode materials is installed in the device attached to the place where centrifugal force is applied. In the method of mounting a battery to be mounted, the battery is mounted in the device so that the negative electrode material side exists in the direction of centrifugal force applied to the device. 2. The positive electrode material and the light metal are inside the battery case.
Or, the negative electrode material consisting mainly of this light metal alloy is placed opposite to each other via the separator, and the battery filled with the electrolyte between the positive and negative electrode materials is installed in the device attached to the place where centrifugal force is applied. A method of mounting a battery, wherein the battery is mounted in the device so that the negative electrode material side faces within an angle range of 0 to 60 degrees with respect to the direction of centrifugal force applied to the device. . 3. The positive electrode material and the light metal are inside the battery case.
Or, the negative electrode material consisting mainly of this light metal alloy is placed opposite to each other via the separator, and the battery filled with the electrolyte between the positive and negative electrode materials is installed in the device attached to the place where centrifugal force is applied. In the battery mounting device described above, the battery is mounted at a predetermined position of the device by using a mounting means that restricts the negative electrode material side to face within a predetermined angle range with respect to the direction of the centrifugal force applied to the device. And battery mounting device. 4. The mounting means is configured to be mounted by restricting the mounting direction by a mounting structure in which the outer shape of the battery is different from the positive electrode side and the negative electrode side, and only the one electrode side shape is fitted. The battery mounting device according to claim 3. 5. A void volume obtained by dividing a battery having a flat battery case into two in the thickness direction, and subtracting the volume occupied by the negative electrode material, the positive electrode material, and the separator from the internal volume of the battery case at each divided portion. 3. The battery mounting method according to claim 1, wherein the battery is mounted such that the divided portion on the side where the negative electrode material is arranged has a smaller void volume than the divided portion on the other side. 6. The battery comprises a metal oxide,
Halide, a positive electrode material mainly one of sulfide and a negative electrode material, heat-resistant temperature is opposed via a separator made of 0.99 ° C. or more materials, between the positive electrode material and negative electrode material The battery case is filled with an electrolyte solution in which a lithium salt is dissolved as a solute in a simple substance or a mixture of organic solvents having a boiling point of 170 ° C. or more as a solvent, and a heat resistant temperature of 150 ° C. or more and an organic solvent resistant gasket. The battery mounting method according to claim 1 or 2, wherein the opening is sealed with a sealing plate. 7. The material of the separator is glass fiber,
The battery mounting method according to claim 6, wherein the battery is selected from polyphenylene sulfide resin, polyvinylidene fluoride resin, polytetrafluoroethylene resin, polybutylene terephthalate resin, and ceramic fiber. 8. The battery mounting method according to claim 6, wherein the organic solvent is selected from gamma butyrolactone, propylene carbonate, ethylene carbonate, butylene carbonate, sulfolane, and 3 methylsulfolane. 9. The battery mounting method according to claim 6, wherein the gasket is selected from polyphenylene sulfide resin, polyether ketone resin, polyether ether ketone resin, polytetrafluoroethylene resin, and vinylidene tetrafluoride resin.