JPH08138686A - Nonaqueous electrolyte battery - Google Patents

Abstract

PURPOSE: To provide a battery which can be stored or used in a high- temperature environment, a high-temperature and high-humidity environment or the like by enhancing the heat resistant performance of a gasket material, an electrolyte and a separator material in a nonaqueous electrolyte battery in which lithium is adopted as a negative electrode active material and graphite fluoride is adopted as a positive electrode active material. CONSTITUTION: A perfluoroalkoxyresin(PFA) resin is used for a gasket material and lithium salt is dissolved into an organic solvent having the boiling point of not less than 170 deg.C for an electrolyte and a glass fiber nonwoven fabric is used for the material of a separator 4. Thereby, a battery is obtained which can be stored or used in a high-temperature environment, a high-temperature and high-humidity environment or the like. Particularly, the average diameter of the fiber of the glass nonwoven fabric used for the material of the separator 4 is made not more than 2μm and a metsuke weight is made 5.0 to 9.0g/m<2> and an average hole diameter is made 3.0 to 7.5μm. Thereby, a liquid leakage at the time of sealing a battery can be prevented, so that a battery having stable discharge characteristic may be obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-aqueous electrolyte battery using a light metal or an alloy thereof as a negative electrode active material and a metal oxide or a halide as a positive electrode active material, particularly in a high temperature environment, a high temperature and high humidity environment, and a temperature difference. The present invention relates to improvements in gasket materials, non-aqueous electrolyte solutions, and separator materials that can withstand thermal shock and the like.

[0002]

2. Description of the Related Art Non-aqueous electrolyte batteries, especially lithium graphite fluoride batteries, are widely used as a power source for memory backup because they have excellent long-term storage characteristics of 10 years or longer at room temperature. Recently, there has been a demand for use in high temperature environments such as automobiles and industrial equipment. In addition, like other electronic components, it is required that these batteries can maintain their battery characteristics even after being exposed to a high temperature environment so that they can be reflowed onto a circuit board.

To meet such requirements, for example, US
P5,246,795 and Japanese Patent Publication No. 5-58232 have been attempted to improve, that is, the battery constituent material, but it has not been sufficient.

The structure of a conventional graphite fluoride lithium battery will be described below. Figure 1 shows an example of a conventional lithium graphite fluoride battery with a diameter of 12.5 mm and a thickness of 2.5 mm.
FIG. 3 is a sectional view showing the configuration of a coin type lithium graphite fluoride battery (BR1225). In FIG. 1, 1 is a sealing plate made of stainless steel, 2 is a negative electrode made of lithium metal, 3 is a positive electrode whose main component is fluorinated graphite, 4 is a separator made of polypropylene (hereinafter abbreviated as PP) nonwoven fabric, 5 Is a battery case made of stainless steel, 6 is PP
A gasket made of resin, 7 is a titanium metal current collector. The electrolytic solution was a mixture of γ-butyrolactone (hereinafter abbreviated as GBL) or propylene carbonate (hereinafter abbreviated as PC) that is a high boiling point solvent, and dimethoxyethane (hereinafter abbreviated as DME) that was a low boiling point solvent. Lithium borofluoride (LiBF ₄ ) was dissolved in a solvent to a solute concentration of 1.00 mol / l.

In the lithium graphite fluoride battery having the above structure, the positive electrode uses graphite fluoride which is stable to heat from 450 ° C. to 650 ° C. as an active material, and the negative electrode is lithium metal which is stable to heat up to the melting point of 181 ° C. Is used as the active material. In addition, the discharge product lithium fluoride (LiF) was 850 ° C.
It is stable to heat.

Generally, in a coin-shaped, button-shaped, cylindrical, etc. lithium battery, regardless of the battery shape, a gasket having an insulating function is arranged between a metal container also serving as a positive electrode terminal and a metal container also serving as a negative electrode terminal. There must be. The gasket has an insulating function of the metal container that also serves as the positive and negative electrode terminals, and a function of hermetically holding the power generation element so as to prevent the power generation element from coming out of the battery and the outside air from entering the inside of the battery. However, in a high temperature environment, due to thermal shock or the like, a minute gap is generated due to the difference in thermal expansion between the gasket material and the positive and negative metal container materials, and the electrolyte may evaporate and leak, and external air or water may enter the battery, causing Performance deteriorates.

[0007]

In the structure of the conventional coin type lithium graphite fluoride battery as described above, -40 ° C. to 6 ° C.
It can be used or stored in the temperature range of 0 ° C. However, as a cause of deterioration of battery performance due to high temperature storage of 60 ° C. or more and thermal shock load, there is a gap generated in the part A in FIG. 1 at the battery caulking part (contact part between gasket and sealing plate, gasket and battery case). The electrolyte may evaporate or leak from the inside of the battery, or external air or moisture may enter the inside of the battery. In particular, when a solvent having a relatively low boiling point of 83 ° C. such as DME is used as the solvent of the electrolytic solution,
It is extremely easily gasified at a temperature of 83 ° C. or higher, and the solvent easily scatters to the outside of the battery through the above-mentioned minute gaps in the sealing and caulking portion, which significantly deteriorates the battery performance. Alternatively, when external air, moisture or the like enters, the lithium surface, which is particularly susceptible to a chemical reaction with water among the power generation elements inside the battery, forms a film such as an oxide or a hydroxide that inhibits the power generation reaction, particularly Battery performance deteriorates due to a rapid increase in internal resistance.

PP used as a material for gaskets and separators has a continuous maximum operating temperature of about 65 ° C.
Therefore, when used at 65 ° C. or higher, or when stored at high temperature, the resin deteriorates due to heat and the composite deterioration begins due to permeation and diffusion of the electrolyte into the resin. If the insulating / sealing function is a separator, the insulating / electrolyte holding function is impaired and the battery performance is significantly reduced. This phenomenon shows that the degree of deterioration increases as the ambient temperature increases, and PP increases in the environment of 170 ° C.
The resin melts, the above functions of both the gasket and the separator are lost, and the battery characteristics are not exhibited.

The present invention solves these problems, and an object of the present invention is to provide a non-aqueous electrolyte battery which can be used or stored in a high temperature environment or under thermal shock.

[0010]

[Means for Solving the Problems] To achieve this object
In the present invention, lithium, sodium, magnesium, etc.
Negative electrode active material composed of light metals or their alloys, acid
Oxidation of metals such as copper oxide, molybdenum trioxide and manganese dioxide
Substances, halides such as fluorinated graphite, etc. as positive electrode active materials
In non-aqueous electrolyte batteries, insert between the positive and negative terminals.
Perfluoroalkoxy (PF)
A) Resin is used and the boiling point of the non-aqueous electrolyte is 170 ° C or higher.
Inorganic solvent as a solute, or as a solute
Dissolve salt and use as separator a mean fiber diameter of 2 μm or less
Below, basis weight 5.0 to 9.0 g / m ², Average pore diameter 3.0
It is a configuration using a glass fiber material of ˜7.5 μm.

[0011]

With the above structure, when the battery is used or stored at a high temperature, a fine gap is prevented from being generated in the caulking portion of the seal, and the solute containing the lithium salt is contained in the electrolytic solution at a high level. An appropriate amount dissolved in a boiling point solvent is used, and as a separator material, an average fiber diameter of 2 μm or less, preferably 0.3 to 1.5 μm, and a basis weight of 5.0 to
By using a glass fiber material having 9.0 g / m ² and an average pore diameter of 3.0 to 7.5 μm, the thermal stability of the electrolytic solution and the leakage immediately after sealing can be prevented, so that the leakage resistance is further improved. The improvement can be ensured, and a battery having excellent battery characteristics can be provided.

[0012]

Embodiments of the present invention will be described with reference to the drawings.

(Example 1) A positive electrode is made of fluorinated graphite, a negative electrode is made of lithium metal, a gasket is made of PFA resin, an electrolytic solution is made by dissolving LiBF ₄ in 1.00 mol / l in GBL, and a separator is made of glass fiber non-woven fabric. Was used to assemble a battery as shown in FIG.

(Comparative Example 1) The structure is the same as that of Example 1 except that the gasket is made of PEK resin.

(Comparative Example 2) The structure is the same as that of Example 1 except that the gasket is made of PEEK resin.

(Comparative Example 3) The structure is the same as that of Example 1 except that the gasket is made of PES resin.

(Comparative Example 4) The structure is the same as that of Example 1 except that the gasket is made of PSu resin.

(Comparative Example 5) The structure is the same as that of Example 1 except that the gasket is made of PAI resin.

(Comparative Example 6) The structure is the same as that of Example 1 except that the gasket is made of PEI resin.

The electrolyte resistance test was carried out by immersing these batteries at 150 ° C. for 40 days. The results are shown in (Table 1).

[0021]

[Table 1]

From Table 1, polyethersulfone (PES) resin and polysulfone (PS) used as gaskets
u) resin, polyamide imide (PAI) resin, polyether imide (PEI) resin is dissolved, PFA resin, polyether ketone (hereinafter abbreviated as PEK) resin, polyether ether ketone (hereinafter abbreviated as PEEK) resin It showed excellent electrolytic solution resistance.

Next, a high temperature storage test of 150 ° C. storage and a high temperature and high humidity storage test of 60 ° C. 90% RH were carried out for Example 1, Comparative Example 1 and Comparative Example 2 which gave good results in the electrolyte resistance test. I went each. Table 2 shows the relationship between open circuit voltage and internal resistance after storage at 150 ° C, and Table 3 shows 60 ° C.
The relationship between the open circuit voltage after 90% RH storage and the internal resistance is shown.

[0024]

[Table 2]

[0025]

[Table 3]

As shown in Table 2, the PFA resin is superior because the open circuit voltage decreases and the internal resistance increases as the storage period of 150 ° C. elapses. Similarly, (Table 3) shows that the PPS resin is clearly superior from the changes in the open circuit voltage and the internal resistance after storage at 60 ° C. and 90% RH.

Next, when the PFA resin is used as a gasket, the optimum compression rate, that is, between the positive electrode terminal and the negative electrode terminal, the thickness of the PFA resin compressed by both terminals is compressed before being compressed by both terminals. The thickness and the ratio were compared and examined.

(Comparative Example 3) With the same structure as in Example 1, the average value of the compressibility of the gasket was set to 30%.

(Comparative Example 4) With the same structure as in Example 1, the average value of the compressibility of the gasket was set to 40%.

(Embodiment 2) With the same construction as in Embodiment 1, the average value of the compressibility of the gasket was set to 50%.

(Embodiment 3) With the same construction as in Embodiment 1, the average value of the compressibility of the gasket was set to 70%.

(Embodiment 4) With the same construction as in Embodiment 1, the average value of the compressibility of the gasket was set to 90%.

(Comparative Example 5) With the same construction as in Example 1, the average value of the compressibility of the gasket was set to 95%.

[0034]

[Table 4]

From Table 4, the average compression ratio is 50 to 90.
It can be seen that in the range of%, no liquid leakage occurs and the liquid leakage resistance is satisfied. Therefore, when the PFA resin is used as a gasket, liquid leakage resistance is ensured by maintaining the shape of the sealing caulking portion compressed to an average value of 50 to 90% of the thickness before compression. . This phenomenon is PF
Similar results were obtained in the case of a resin material obtained by adding the above-mentioned additives to resin A.

Next, paying attention to the electrolytic solution, in the prior art, since it was a mixed solvent of a high boiling point solvent and a low boiling point solvent, the low boiling point solvent evaporates during high temperature storage, and the deterioration of the battery characteristics becomes remarkable. Therefore, in order to suppress the evaporation of the electrolytic solution during storage at high temperature, various studies were conducted using only the high boiling point solvent excluding the low boiling point solvent.

Table 5 shows the general high boiling point solvents investigated, their freezing points and boiling points.

[0038]

[Table 5]

As a result, when the low temperature discharge at -20 ° C or lower is taken into consideration, the components other than PC and GBL in the solvents shown in (Table 5) are solidified at -20 ° C and hinder the ionic conduction in the electrolytic solution. Further, by removing the low boiling point solvent having a relatively high electric conductivity, the electric conductivity of the electrolytic solution is lowered and the operating voltage is lowered.

Therefore, as the high boiling point solvent of the non-aqueous electrolyte battery of the present example, the solvent does not solidify even at a low temperature of -40 to 0 ° C. In other words, the battery can carry out an electromotive reaction even within this temperature range. Can be in Further, regarding the conventional GBL having excellent storage characteristics, the simple substance of PC, and the mixed solvent of PC alone, the comparison of the operating voltage of −40 to 85 ° C. is similar between the conventional high boiling solvent GBL and the mixed solvent of the low boiling solvent DME. The above-mentioned battery was prepared for the test.

FIG. 2 shows the LiBF ₄ concentration of 1.00 mol / l.
The operating voltage at the time of 30 kΩ discharge and a discharge depth of 40% of the lithium graphite fluoride battery (FIG. 1) in each solvent formulation at the time is shown.

From these results, in the mixed solvent system of the high boiling point solvent GBL and PC, the higher the mixing ratio of GBL, the higher the operating voltage, particularly at -20 ° C and -40 ° C.
Also, the higher the GBL mixing ratio, the higher the conventional high boiling point solvent G
It was found that it was closer to the operating voltage of the mixed solvent of BL and the low boiling point (low viscosity) solvent DME. Therefore, it is found that GBL is most effective for the high boiling point solvent.

Next, the solute of the electrolytic solution was examined. Conventionally, the solute of the electrolytic solution of a graphite fluoride lithium battery is LiBF ₄ , and the concentration is 1.00 mol / l. Therefore, LiBF ₄ in the high boiling point solvent GBL
Experiments were carried out to see how the solute concentration affects the high temperature storage characteristics.

Comparative Example 6 The solute concentration was 0.8 mol /
The configuration is the same as that of the sixth embodiment except that it is 1.

Example 5 The solute concentration was 0.9 mol /
The configuration is the same as that of the sixth embodiment except that it is 1.

(Embodiment 6) The construction is the same as that of Embodiment 1.

Example 7 The solute concentration was 1.3 mol /
The configuration is the same as that of the sixth embodiment except that it is 1.

Example 8 The solute concentration was 1.5 mol /
The configuration is the same as that of the sixth embodiment except that it is 1.

Comparative Example 7 The solute concentration is 1.6 mol /
The configuration is the same as that of the sixth embodiment except that it is 1.

Table 6 shows the battery characteristics after storage at 150 ° C. at each solute concentration.

[0051]

[Table 6]

From these results, when the LiBF ₄ solute concentration is 0.80 mol / l or less and 1.60 mol / l or more, the battery open circuit voltage is lowered and the battery internal resistance is significantly increased. Also, the LiBF ₄ solute concentration was 1.60 mol / l.
When it becomes above, the solubility of the solute decreases at −40 to 0 ° C., the solute precipitates, and the discharge reaction at low temperature is hindered. Therefore, L
It was found that the iBF ₄ solute concentration is preferably 0.90 to 1.50 mol / l.

As a separator material, generally, in a non-aqueous electrolyte battery, a resin material such as PE or PP is used as a film,
Use processed non-woven fabric. However, when used in a high temperature environment, both the PE resin and the PP resin dissolve at a temperature above the melting point of themselves and lose their function as a separator and cannot be used. Therefore, a glass fiber non-woven fabric was used. Example 1 Comparative Example 8 using a conventional PP non-woven fabric as a battery separator and Example 9 which is the same as Example 1.
And the data when these batteries were stored at 150 ° C. are shown in (Table 7).

[0054]

[Table 7]

It can be seen that the battery using the PP non-woven fabric has an increase in internal resistance and a decrease in voltage as the storage time elapses.

Next, the average fiber diameter of the glass fibers is determined by determining the amount of electrolyte retained during battery assembly, the leakage of electrolyte during sealing of the battery,
The so-called immediate leakage was evaluated.

Example 10 A battery in which the glass fiber of Example 1 has an average fiber diameter of 0.3 μm.

Example 11 A battery in which the glass fiber of Example 1 has an average fiber diameter of 0.5 μm.

Example 12 A battery in which the glass fiber of Example 1 has an average fiber diameter of 1.0 μm.

Example 13 A battery in which the glass fiber of Example 1 has an average fiber diameter of 1.5 μm.

Example 14 A battery in which the glass fiber of Example 1 has an average fiber diameter of 2.0 μm.

Comparative Example 9 A battery in which the glass fiber of Example 1 has an average fiber diameter of 2.5 μm.

Comparative Example 10 A battery in which the glass fiber of Example 1 has an average fiber diameter of 3.0 μm.

The results are shown in (Table 8).

[0065]

[Table 8]

As is clear from (Table 8), when the average fiber diameter is 2 μm or more, the amount of liquid leakage increases remarkably, resulting in a decrease in discharge duration. Preferably, when the average fiber diameter is 0.3 to 1.5 μm, the leakage amount is the smallest and the discharge duration is long. If the average fiber diameter is 0.3 μm or less, the mechanical strength is weak,
It is difficult to process as a battery separator, and even if it can be processed, it is difficult to process it into a uniform basis weight, and the processing cost increases.

Further, the weight per unit area of the glass fiber and the average pore diameter were carefully studied. If the average fiber diameter is in this range, a weight per unit area of 5.0 to 9.0 g / m ² and an average pore diameter of 3.0 to 7.5 μm can be sufficiently used.

This is because when the weight per unit area is 5.0 g / m ² or less, the mechanical strength as a separator material is too small, so that breakage or deformation occurs during processing and an internal short circuit occurs during battery construction. If the weight per unit area is 9.0 g / m ² or more, the amount of electrolyte retained and the water absorption rate become small, which is a practical problem.

If the average pore diameter is 3.0 μm or less, the amount of the electrolytic solution required for the electromotive reaction cannot be sufficiently maintained. Also, 7.5 μm
In the above, the retention of the electrolytic solution is good, but the electrolytic solution is taken into the pores of the separator during the electromotive reaction, and as a result, the amount of the electrolytic solution involved in the electromotive reaction decreases, and as a result, the reaction efficiency This is because it causes a decrease.

In addition, in the metal container which also functions as the positive electrode terminal in the battery having such a structure, the part which is electrically connected to the positive electrode and is in contact with the electrolytic solution, that is, the material for forming the battery case 5 in FIG. It becomes a problem for ensuring reliability. In Table 9, the so-called austenitic stainless steel containing 8% by weight of nickel and 18% by weight of chromium as a battery case material, and the so-called ferritic stainless steel containing almost no nickel, the chromium content is 10 to 20% by weight. The results of the 85 ° C. storage test of the non-aqueous electrolyte battery in the case of using the changed material and the material in which the molybdenum content is changed to 1.0 to 3.0% by weight are shown.

(Comparative Example 11) A battery using stainless steel containing 18% by weight of chromium and 8% by weight of nickel as the positive electrode case material of Example 1.

(Comparative Example 12) A battery using stainless steel containing 10% by weight of chromium as the positive electrode case material of Example 1.

(Example 15) A battery using stainless steel containing 15% by weight of chromium as the positive electrode case material of Example 1.

(Example 16) A battery using stainless steel containing 16% by weight of chromium as the positive electrode case material of Example 1.

Example 17 A battery using stainless steel containing 18% by weight of chromium as the positive electrode case material of Example 1.

Example 18 A battery using stainless steel containing 20% by weight of chromium as the positive electrode case material of Example 1.

(Comparative Example 13) A battery using stainless steel containing 18% by weight of chromium and 1.0% by weight of molybdenum as the material for the positive electrode case of Example 1.

(Example 19) A battery using stainless steel containing 18% by weight of chromium and 1.5% by weight of molybdenum as the positive electrode case material of Example 1.

(Example 20) A battery using stainless steel containing 18% by weight of chromium and 2.0% by weight of molybdenum as the material for the positive electrode case of Example 1.

(Example 21) A battery using stainless steel containing 18% by weight of chromium and 2.5% by weight of molybdenum as the material for the positive electrode case of Example 1.

(Comparative Example 14) A battery using stainless steel containing 18% by weight of chromium and 3.0% by weight of molybdenum as the positive electrode case material of Example 1.

[0082]

[Table 9]

From Table 9, it was confirmed that when the austenitic stainless steel containing nickel was used as the battery case, the voltage greatly decreased during storage. When the battery was disassembled, it was found that the battery voltage was lowered because part of the battery case material was dissolved and deposited on the lithium surface of the negative electrode. Further, it can be seen that when the ferritic stainless steel is used, the decrease in battery voltage during storage is small, but the decrease in battery voltage does not occur especially when the chromium content is 15% by weight or more. Further, in ferritic stainless steel, molybdenum was added in an amount of 0.1% in the region where the amount of chromium was 15% by weight or more.
It can be seen that the battery voltage after storage is further stabilized by adding 5 wt% or more. Therefore, in the battery according to the present invention, the stainless steel used for the portion electrically connected to the positive electrode mixture and in contact with the electrolytic solution, that is, the battery case contains almost no nickel and contains 15% by weight or more of chromium. By using steel containing 0.5% by weight or more of molybdenum, high temperature storage characteristics can be improved.

Here, the contents of the examination so far are arranged and shown below. (Embodiment 22) In FIG. 1, the sealing plate 1 is made of stainless steel, the negative electrode 2 is made of lithium metal, and the positive electrode mixture 3 is used.
Is mainly made of fluorinated graphite, and the separator 4 is made of glass fiber nonwoven fabric having an average fiber diameter of 0.5 μm.
Is made of stainless steel containing almost no nickel, containing 15% by weight or more of chromium and 0.5% by weight or more of molybdenum, the gasket 6 is a 100% PFA resin component, and the electrolyte is a solute in the high boiling point solvent GBL. A battery is configured by using an electrolyte solution in which LiBF ₄ is dissolved to have a solute concentration of 1.00 mol / l.

FIG. 3 is a comparison of battery characteristics between the conventional example and Example 22 after storage at 150 ° C. It can be seen that Example 22 is superior to the conventional product in that there is no decrease in the open circuit voltage as compared with the conventional example.

FIG. 4 is a comparison of the electrolytic solution residual ratios of the conventional example and Example 22 after storage at 150 ° C. Conventional example is low boiling point solvent D
Due to the evaporation of ME, the electrolytic solution residual rate is significantly reduced, while
In Example 22, the decrease in the electrolytic solution residual rate was extremely small, and it can be seen that the hermetically sealed state at the time of high temperature storage was improved as compared with the conventional example.

Table 10 shows the results of Example 22 and the conventional example 15
The discharge capacity and the capacity remaining rate after storage at 0 ° C are shown.

[0088]

[Table 10]

The discharge capacity was confirmed by storing at 150 ° C and then at 20 ° C.
It was carried out by discharging 30 kΩ and ending at 2.5 V. (Table 10)
From the results, it can be seen that the capacity remaining ratio of the conventional example is 0% at 150 ° C. for 20 days, but the capacity remaining ratio of Example 22 is 64% even after storage for 40 days.

Other battery systems in which the types of the positive electrode active material and the negative electrode active material are different, for example, the negative electrode active material made of a light metal such as lithium, sodium, magnesium, or an alloy thereof, such as copper oxide, molybdenum trioxide, and dioxide. A metal oxide such as manganese, a halide such as fluorinated graphite as a positive electrode active material, the gasket material of the present invention, an electrolytic solution,
Experiments have shown that the same effect can be obtained by using a separator material.

[0091]

As is apparent from the above description, the non-aqueous electrolyte battery of the present invention can be stored in a high temperature environment against thermal shock,
The effect that it can be used is obtained.

INDUSTRIAL APPLICABILITY The present invention can be stored or used in a wide range of temperature, especially in a high temperature environment, and can be used for a wider range of applications of this type of non-aqueous electrolyte battery, and its industrial value is great.

[Brief description of drawings]

FIG. 1 is a sectional view showing the structure of a general coin-type battery.

FIG. 2 is a diagram showing the operating voltage at each temperature when a 30 kΩ discharge and a depth of discharge of 40% of the battery in each solvent formulation were performed.

FIG. 3 is a diagram showing battery characteristics of this example and a conventional example after storage at 150 ° C.

FIG. 4 is a diagram showing a residual ratio of an electrolytic solution after storage at 150 ° C. in this example and a conventional example.

[Explanation of symbols]

 1 Sealing Plate 2 Lithium 3 Positive Electrode Mixture 4 Separator 5 Battery Case 6 Gasket 7 Current Collector

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Shusuke Oguro 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Masatsugu Kondo, 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.

Claims (10)

[Claims] 1. In a non-aqueous electrolyte battery using lithium as a negative electrode active material and fluorinated graphite as a positive electrode active material, a perfluoroalkoxy (PFA) resin is used as a gasket interposed between a positive electrode terminal and a negative electrode terminal. As a water electrolyte, an organic solvent having a boiling point of 170 ° C. or higher is dissolved alone or in a mixture, and a lithium salt is dissolved as a solute. The separator has an average fiber diameter of 2 μm or less and a basis weight of 5.0 to 9.0 g / m ² ,
A non-aqueous electrolyte battery comprising a glass fiber material having an average pore diameter of 3.0 to 7.5 μm. 2. The non-aqueous electrolyte battery according to claim 1, wherein the organic solvent contains γ-butyrolactone as a main component. 3. The solute is lithium borofluoride (LiB
The non-aqueous electrolyte battery according to claim 1, wherein F ₄ ) dissolved in a solvent at 0.90 to 1.50 mol / l is used. 4. A gasket containing a perfluoroalkoxy (PFA) resin as a main component is compressed between a positive electrode terminal and a negative electrode terminal to an average thickness of 50 to 90% of the thickness before compression and hermetically sealed. The non-aqueous electrolyte battery according to claim 1, wherein 5. In a metal container that also serves as a positive electrode terminal, steel containing 15% by weight or more of chromium and 0.5% by weight or more of molybdenum is used in a portion which is electrically connected to the positive electrode and is in contact with the electrolytic solution. The non-aqueous electrolyte battery according to claim 1, which is characterized in that. 6. A positive electrode is made of a light metal such as lithium, sodium or magnesium, or a negative electrode active material composed of an alloy thereof, a metal oxide such as copper oxide, molybdenum trioxide or manganese dioxide, or a halide such as fluorinated graphite. In a non-aqueous electrolyte battery as a material, a perfluoroalkoxy (PF) is used as a gasket interposed between a positive electrode terminal and a negative electrode terminal.
A) a resin, an organic solvent having a boiling point of 170 ° C. or higher as a non-aqueous electrolytic solution is dissolved in a simple substance or in a mixture, an inorganic salt is dissolved as a solute, an average fiber diameter of 2 μm or less, and a basis weight of 5.0 to 9. 0 g / m ² , average pore size 3.0
A non-aqueous electrolyte battery characterized by using a glass fiber material of ˜7.5 μm. 7. The non-aqueous electrolyte battery according to claim 6, wherein the organic solvent contains γ-butyrolactone as a main component. 8. The solute is lithium borofluoride (LiB
The non-aqueous electrolyte battery according to claim 6, wherein F ₄ ) dissolved in a solvent at 0.90 to 1.50 mol / l is used. 9. A gasket containing a perfluoroalkoxy (PFA) resin as a main component is compressed and sealed between the positive electrode terminal and the negative electrode terminal to an average value of 50 to 90% of the thickness before compression. The non-aqueous electrolyte battery according to claim 6, wherein 10. In a metal container which also serves as a positive electrode terminal, a steel containing 15% by weight or more of chromium and 0.5% by weight or more of molybdenum is used in a portion which is electrically connected to the positive electrode and is in contact with the electrolyte. The nonaqueous electrolyte battery according to claim 6.