JPH0765843A - Organic electrolyte battery - Google Patents

Abstract

PURPOSE:To provide an organic electrolyte cell excellent in storage stability. CONSTITUTION:An organic metallic salt in which electron attractive organic substituent is bonded to atoms ranging from b of III group to b of V group positioned at the center of anion such as, for example, lithium boron disalicylate [LiB (-O-C(=O)-C6H4-O-)2] through oxygen atom is used as the electrolyte of an organic electrolyte. Or an organic metallic salt in which also electron attractive organic substituent is bonded to atoms ranging from b of III group to b of V group positioned at the center of anion, and a mole ratio [metallic atom/atom positioned at the center of anion (mole ratio)] of metallic atom to atom positioned at the center of anion at which a pair of cations are formed for the atom positioned at the center of the anion is 1 or larger is used.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an organic electrolytic solution battery, and more particularly to an organic electrolytic solution battery having excellent storability.

[0002]

2. Description of the Related Art Organic electrolyte batteries represented by manganese dioxide-lithium batteries are in high demand due to their high voltage and high energy density.

Conventionally, organic electrolytes of batteries of this type (hereinafter,
Perchloric acid-based LiClO ₄ has been used as an electrolyte in electrolytes except in the case of expressing a battery), but recently, the safety of the battery has been emphasized, and LiClO ₄ is highly dangerous. Things have become unfavorable.

As the lithium salt other than LiClO ₄ , for example, LiBF ₄ or LiB (C ₆ H ₅ ) ₄ is used as an electrolyte.

[0005]

However, the above-mentioned electrolytic solution using LiBF ₄ , LiB (C ₆ H ₅ ) ₄ or the like as an electrolyte may be discolored when stored and some of the electrolytic solution solvent may Polymerize. Further, when the electrolytic solution is used in a battery, the storage property of the battery is lowered.

Therefore, an object of the present invention is to solve the above-mentioned problems in the conventional organic electrolytic solution battery and to provide an organic electrolytic solution battery having excellent storability.

[0007]

According to the present invention, as an electrolyte of an electrolytic solution, an oxygen atom is bonded to an atom of group IIIb to group Vb, which is an anion center, and the oxygen atom has an electron withdrawing property. An organic metal salt having an organic substituent bonded thereto, or an organic metal salt-based salt having an electron-withdrawing organic substituent bonded to an atom of group IIIb to group V as an anion center, In addition, by using an organometallic salt having a molar ratio [metal atom / anion central atom (molar ratio)] of a metal atom forming a counter cation with respect to the anionic central atom [metal atom / anionic central atom (molar ratio)] of more than 1, The storability is improved to achieve the above object.

In the present invention, the reason why the storability of a battery can be improved by using the above-mentioned specific organic metal salt as an electrolyte is as follows. Make it clear.

An atom of group IIIb to group Vb serving as an anion center, for example, B (boron), N (nitrogen), P (phosphorus), Ga (gallium), Al (aluminum), Si
(Si) has a lower electronegativity than O (oxygen) and S (sulfur) of group VI atoms, and when these atoms become the anion center, the electronegativity becomes higher when the battery voltage becomes 3 V or more. However, there is a problem in that the storability of the battery deteriorates because electrons are more likely to be emitted and anions are oxidized. As is clear from the above examples, in the present invention, atoms of group IIIb to group Vb are atoms of elements belonging to group IIIb to group Vb of the periodic table.

As a measure to prevent the oxidation of the anion as described above, an inorganic electron-withdrawing group is bound to the atom of group IIIb to group V of the anion to stabilize the atom of the anion. It is possible to make it. LiBF ₄ is an example of this, but although some stabilization is obtained, it cannot be said to be sufficient as shown in Comparative Example 2 below.

Therefore, in the present invention, further studies are conducted.
The invention according to the first aspect, wherein an oxygen atom is bonded to an atom of group IIIb to group Vb, which is the anion center of the organometallic salt, and an electron-withdrawing organic substituent is further bonded to the oxygen atom. Was completed.

In the above invention, the oxygen atom is not directly bonded to the atom at the center of the anion and the oxygen atom is interposed between the atom and the electron-withdrawing organic substituent, because the electronegativity of the oxygen atom is high. This is because the atom stabilizes the atom at the center of the anion, and since it has only two bonds, it is possible to bond an electron-withdrawing organic substituent with little steric hindrance. And, the electron-withdrawing organic substituent is capable of withdrawing an electron from the anion center by reducing the electron density of the anion center atom through the oxygen atom. Prevents the anion from being oxidized.

Examples of the electron-withdrawing organic substituent include a carbonyl group, a sulfonyl group, an amino group, a cyano group,
Although there are halogenated alkyl groups and the like, carbonyl groups and sulfonyl groups are particularly suitable because they can be easily synthesized.

Examples of the metal that forms a salt with the electron-withdrawing organic substituent include alkali metals such as lithium, sodium and potassium, alkaline earth metals such as magnesium and calcium, and lithium is particularly preferable. . The metal atom preferably has a larger molar ratio than the central atom of the anion. The reason for this will be described in detail later.

Specific examples of the above-mentioned organometallic salts include, for example, LiBXX 'and LiB (= O) X [where X and X'are electron withdrawing atoms having oxygen bonded to a B (boron) atom. Organic substituent, for example, X, X '=-
O-C (= O) -C 6 H 3 (R) -O -, - O-C (=
O) -R'-O-, etc., R is an alkyl group or an H (hydrogen) atom, and R'is an alkylene group], LiB
(Y ₁ ) (Y ₂ ) (Y ₃ ) (Y ₄ ) [where Y ₁ , Y
₂ , Y ₃ , and Y ₄ are -OC (= O) -R, -OR,-.
C (= O) -O-R and the _{like, Y 1, Y 2, Y} 3, Y
At least one of ₄ is -O-C (= O) -R], LiN [-OC (= O) CF _3] [-C (= O)
CF _3] include, as a particularly preferred lithium Boronji salicylate [LiB (-O-C (= O )
-C ₆ H ₄ -O-) _2] and the like.

The above lithium boron disalicylate [Li
B (-O-C (= O ) -C 6 H 4 -O-) 2 ] is, for example, J. inorg. nucl. Chem. , Vo
l. 40 , p987 (1978), or by mixing boric acid, salicylic acid, and a basic lithium salt in a predetermined molar ratio, heating in an organic solvent, reacting while collecting water, and removing the solvent. Obtained by Also, Li
N [-OC (= O) CF _3] [-C (= O) CF _3]
Is, HN [-OC (= O) CF _3] [-C (= O) CF
₃ ] is neutralized with a basic lithium salt.

In addition, as the above-mentioned organic metal salt, LiB
(OSO ₂ Rf) ₄ , LiC (OSO ₂ Rf) ₃ , Li
N (OSO ₂ Rf) ₂ or the like can also be used. Here, Rf is a fluoroalkyl group.

The atoms of the group IIIb to the group Vb which serve as anion centers are B (boron), N (nitrogen), P (phosphorus) and Ga.
(Gallium), Al (aluminum), Si (silicon)
, Etc., but considering the number of bonds, group III b
To Group IV b atoms are preferred, with Group III b atoms being particularly preferred. Considering the molecular weight of the organic metal salt, an atom having an atomic weight of 70 or less, preferably an atom having an atomic weight of 30 or less, and more preferably an atom having an atomic weight of 15 or less is preferable. From the above, B (boron) is most suitable as the atom serving as the anion center.

That is, boron (B) has an atomic weight of 1
In addition to being as small as 0.8, four elements, which are larger than oxygen (O) and nitrogen (N), can be bonded as elements contained in organic substances, and have many electron-withdrawing properties through oxygen atoms. This is because it has the ability to bond with an organic substituent.

A second aspect of the present invention is an organometallic salt system in which an electron-withdrawing organic substituent is bonded to an atom of group IIIb to group Vb serving as an anion center. Molar ratio of metal atom forming counter cation to atom and anion center atom of organic anion [metal atom /
The use of a compound having a central anion atom (molar ratio) of more than 1 further improves the storability of the battery.

Specifically, the metal atom / central atom of anion (molar ratio) is preferably 1.001 or more, more preferably 1.005 or more, still more preferably 1.02 or more. However, when the metal atom / central atom of anion (molar ratio) exceeds 1.05, the battery characteristics tend to start to deteriorate, so 1.05 or less is preferable.

As described above, those having a metal atom / central atom of anion (molar ratio) of more than 1 often have an organometallic salt and Li ₂ CO _{3 which} satisfy the requirements of the first embodiment of the present invention.
It is considered that a poorly soluble salt such as the above forms a double salt.

Although a poorly soluble salt such as Li ₂ CO ₃ is poorly soluble in a general organic solvent for an organic electrolytic solution, it does not only dissolve in a double salt but also forms a pair of organic metal salts. It is preferable because it stabilizes.

Specific examples of the sparingly soluble salt include, for example, LiOH, Li ₂ CO ₃ , LiF, Li ₂ SO ₄ ,
Li ₃ PO _{4 and the} like can be mentioned. Among them, alkaline metal salts LiOH and Li ₂ CO ₃ are preferable, and Li ₃ PO ₄ is particularly preferable.
₂ CO ₃ is preferred. That is, these sparingly soluble salts have a function of neutralizing the organic acid which is stable in the electrolytic solution itself or is alkaline and causes the deterioration of the storability of the battery. Among them, Li ₂ CO ₃
Is particularly preferable in that it has both stability and alkalinity.

When the electrolyte of the present invention and other general electrolytes are mixed and used, the number of moles of cation and the number of anions of the general electrolyte are subtracted to obtain the above metal atom / central atom of anion. (Molar ratio) is calculated.

As described above, in the metal-organic salt system in which an electron-withdrawing organic substituent is bonded to the group IIIb to group V atom serving as the anion center, a metal atom / anion center atom ( When the molar ratio) is larger than 1, a part of the sparingly soluble salt such as Li ₂ CO ₃ is incorporated in the above-mentioned production process of the organic metal salt, and the requirement of the first aspect of the present invention is satisfied as described above. It is considered that the organometallic salt and the poorly soluble salt such as Li ₂ CO ₃ form a double salt.

This metal atom / central atom of anion (molar ratio) is used to measure the atomic concentration of B, Li, etc. by ICP emission spectrometry, or the concentration of metal atom such as Li by ICP emission spectrometry and atomic absorption method. It can be determined by the combined use of measurements.

In the preparation of the electrolytic solution, examples of the organic solvent used for dissolving the organic metal salt of the electrolyte include 1,2-dimethoxyethane, 1,2-dimethoxymethane, dimethoxypropane, 1,3- Ethers such as dioxolane, tetrahydrofuran, 2-methyltetrahydrofuran, 4-methyl-1,3-dioxolane, propylene carbonate, ethylene carbonate, butylene carbonate, γ-butyrolactone, γ-
Examples thereof include esters such as valerolactone, and sulfolane.

Among them, the esters have a low reactivity with the active material of the positive electrode even under a high voltage of 4.2 V or more, and when used in combination with the electrolyte composed of the above-mentioned organic metal salt, the storage stability of the battery is improved. It is preferable because it improves further. The amount of the ester is preferably 10% by volume or more, more preferably 20% by volume or more, further preferably 30% by volume or more in the total organic solvent, and the ester may occupy the entire organic solvent.

The concentration of the above-mentioned organic metal salt electrolyte in the electrolytic solution is not particularly limited, but normally the electrolytic solution contains 0.01 to 2 mol of the above-mentioned organic metal salt electrolyte in the above-mentioned organic solvent. / L, especially 0.05-1m
It is preferable to dissolve the ol / l.

In the production of a battery using the above-mentioned electrolytic solution, the negative electrode used is one in which an alkali metal or a compound containing an alkali metal is integrated with a current collecting material such as a stainless steel net. , For example, lithium, sodium, potassium and the like,
As the compound containing an alkali metal, for example, an alloy of an alkali metal with aluminum, lead, indium, potassium, cadmium, tin, magnesium, etc., a compound of an alkali metal with a carbon material, a low potential alkali metal with a metal oxide, and the like. Compounds, compounds with sulfides, and the like.

For the positive electrode, for example, a metal oxide such as manganese dioxide, vanadium pentoxide, chromium oxide, lithium cobalt oxide, lithium nickel oxide, a metal sulfide such as molybdenum dioxide, or a conductive material of the positive electrode active material is used. A mixture obtained by appropriately adding an auxiliary agent, a binder such as polytetrafluoroethylene, or the like is finished into a molded body using a current collecting material such as stainless steel net as a core material.

When a metal oxide is used as the positive electrode active material, high voltage can be obtained. When a metal oxide of 3 V or more, particularly 4.2 V or more is used for the positive electrode, conventional LiBF ₄ or Li
B (C ₆ H ₅ ) ₄ has a very poor storability, but since the electrolyte composed of the above-mentioned organometallic salt used in the present invention hardly lowers the storability even under such a high voltage,
When a high-voltage positive electrode active material is used, the effect is particularly remarkable.

Further, when the surface area of the positive electrode active material is reduced, the storability is further improved. The surface area of the positive electrode active material used in the present invention is preferably 50 m ² / g or less, more preferably 30 m ² / g or less, and particularly preferably 20 m ² / g or less.

Further, when the active surface of the metal oxide of the positive electrode active material is treated with an alkali metal or alkaline earth metal compound so that the metal oxide contains an alkali metal or an alkaline earth metal, the storage property is further improved. Can be improved. Further, the storability can be improved to some extent by performing preliminary discharge after the battery is manufactured.

[0036]

EXAMPLES Next, the present invention will be described in more detail with reference to examples. However, the present invention is not limited to those examples.

[0037] As Example 1 electrolyte, a lithium Boronji salicylate [Structure in LiB (-O-C (= O ) -C 6 H 4 -O-) 2,
Hereinafter, this is abbreviated as LiBSA], and an electrolytic solution was prepared as described below. In the above-mentioned LiBSA, an electron-withdrawing organic substitution [-C (= O) is performed on the B (boron) atom serving as the anion center through the O (oxygen) atom.
-C ₆ H ₄ -] are attached two. The metal atom / anion center atom (molar ratio) of this LiBSA was 1.02. The above metal atom / central atom of anion (molar ratio) is
The concentration of B atom was measured by ICP emission spectrometry, and the concentration of Li atom was determined from the measurement result by atomic absorption method. In the following Examples and Comparative Examples,
The anion central atom (molar ratio) is determined by the same method as above.

The electrolyte solution is prepared by adding the above-mentioned LiBSA
After dissolving in 2-dimethoxyethane, propylene carbonate was added and mixed. The volume ratio of propylene carbonate and 1,2-dimethoxyethane is 1: 2, and LiBS of the electrolyte in the electrolytic solution is
The concentration of A is 0.6 mol / l, and the composition of this electrolytic solution is represented by 0.6 mol / l LiBSA / PC: DME (volume ratio 1: 2).

LiBSA in the above electrolytic solution is an abbreviation for lithium boron disalicylate as described above, and P
C is an abbreviation for propylene carbonate, DME is 1, 2
-An abbreviation for dimethoxyethane. Therefore, 0.6 mol / l LiBSA / PC: DME showing the above electrolyte solution
In the case of (volume ratio 1: 2), the electrolytic solution contained 0.6 mol / l of lithium boron disalicylate in a mixed solvent of propylene carbonate and 1,2-dimethoxyethane in a volume ratio of 1: 2.
It shows that it was dissolved.

Further, electrolytic manganese dioxide is heat-treated and treated with an aqueous solution of lithium hydroxide to have a surface area of 18 m ² /
Then, 100 parts by weight of this manganese dioxide, 5 parts by weight of carbon black and 5 parts by weight of polytetrafluoroethylene were mixed, and then a sheet of stainless steel net having a thickness of 0.4 mm and a width of 30 mm was used as a core material. The band-shaped positive electrode formed and attached with a collector made of stainless steel net was dried at 250 ° C., and after drying, cooled to room temperature in a dry atmosphere.

Next, the above strip-shaped positive electrode was wrapped with a separator made of a microporous polypropylene film having a thickness of 25 μm, and a strip-shaped negative electrode in which a sheet-shaped lithium having a thickness of 0.18 mm and a width of 30 mm was pressure-bonded to a stainless steel net was prepared. Overlap
Outer diameter of 15 mm after spirally winding into a spiral electrode body
It was filled in a cylindrical battery case having a bottom and spot welding was performed on the lead bodies of the positive electrode and the negative electrode, and then the electrolyte solution was injected into the battery case.

Then, according to a conventional method, the opening of the battery case was sealed, pre-discharge was carried out at 1 A for 120 seconds, and then aging was carried out at 60 ° C. for 3 days to obtain a tubular structure having the structure shown in FIG. An organic electrolyte battery was produced.

Explaining the battery shown in FIG. 1, 1 is the positive electrode and 2 is the negative electrode. However, in FIG. 1, in order to avoid complication, the stainless steel net, the current collector, and the like used in manufacturing the positive electrode 1 and the negative electrode 2 are not shown. And 3 is a separator and 4 is the above-mentioned electrolytic solution.

5 is a stainless steel battery case,
The battery case 5 also serves as a negative electrode terminal. An insulator 6 made of a polytetrafluoroethylene sheet is arranged at the bottom of the battery case 5, and an insulator 7 made of a polytetrafluoroethylene sheet is also arranged at the inner peripheral part of the battery case 5. The spiral electrode body including the negative electrode 2 and the separator 3, the electrolytic solution 4, and the like are contained in the battery case 5.

Reference numeral 8 is a stainless steel sealing plate, and a gas vent hole 8a is provided at the center of the sealing plate 8. Reference numeral 9 is a polypropylene-made annular packing, 10 is a flexible thin plate made of titanium, and 11 is an annular heat-deformable member made of polypropylene.

The above-mentioned thermal deformation member 11 acts to change the breaking pressure of the flexible thin plate 10 by being deformed by the temperature.

Reference numeral 12 denotes a nickel-plated rolled steel terminal plate. The terminal plate 12 is provided with a cutting edge 12a and a gas discharge hole 12b. When the internal pressure rises and the flexible thin plate 10 is deformed due to the increase in the internal pressure, the cutting blade 12a breaks the flexible thin plate 10 to discharge the gas inside the battery from the gas discharge hole 12b to the outside of the battery. Then, it is designed to prevent the destruction of the battery.

Reference numeral 13 is an insulating packing, and 14 is a lead body. This lead body 14 electrically connects the positive electrode 1 and the sealing plate 8, and the terminal plate 12 is brought into contact with the sealing plate 8 to make a positive electrode terminal. Acts as. Reference numeral 15 is a lead body that electrically connects the negative electrode 2 and the battery case 5.

Example 2 As an electrolyte, metal atom / central atom of anion (molar ratio)
A tubular organic electrolyte battery having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that LiBSA having a ratio of 1.00 was used.

Comparative Example 1 LiB (C ₆ H ₅ ) ₄ / 3D in a PC: DME mixed solvent
ME is dissolved and the composition is 0.6 mol / l LiB (C
An electrolytic solution represented by ₆ H ₅ ) ₄ / PC: DME (1: 2) was prepared. The _{LiB (C 6 H 5) 4} · 3DME metal atom / anion center atom of the salt (molar ratio) was 1.00.

PC in this electrolytic solution is an abbreviation for propylene carbonate, and DME is an abbreviation for 1,2-dimethoxyethane. Therefore, 0.6m showing the above electrolyte solution
ol / l LiB (C ₆ H ₅ ) ₄ / PC: DME (1:
In 2), the electrolytic solution was LiB in a mixed solvent of propylene carbonate and 1,2-dimethoxyethane in a volume ratio of 1: 2.
It shows that (C ₆ H ₅ ) ₄ was dissolved at 0.6 mol / l.

A tubular organic electrolyte battery having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that this electrolyte was used.

Comparative Example 2 LiBF ₄ was added to a mixed solvent of PC: DME (volume ratio 1: 2).
0.6 mol / l LiBF ₄ / PC: D
An electrolytic solution having a composition of ME (1: 2) was prepared. The metal atom (Li) / anion center atom (B) (molar ratio) of this LiBF ₄ was 1.00.

PC in this electrolytic solution is an abbreviation for propylene carbonate, and DME is an abbreviation for 1,2-dimethoxyethane. Therefore, 0.6m showing the above electrolyte solution
ol / l LiBF ₄ / PC: DME (1: 2) was prepared by adding LiBF ₄ to a mixed solvent of an electrolytic solution of propylene carbonate and 1,2-dimethoxyethane at a volume ratio of 1: 2 by 0.6%.
It shows that it was dissolved in mol / l.

A tubular organic electrolyte battery having the structure shown in FIG. 1 was prepared in the same manner as in Example 1 except that this electrolyte was used.

Next, the minimum voltage when the batteries of Examples 1 and 2 and the batteries of Comparative Examples 1 and 2 were discharged at 3 A for 0.5 seconds was measured. Store this battery at 80 ° C for 10 days,
Similarly, measure the minimum voltage of the battery after storage,
The performance deterioration of the battery was investigated. The results are shown in Table 1.

[0057]

[Table 1]

Under the severe storage conditions of 80 ° C. × 10 days as described above, as shown in Table 1, the minimum voltage of the battery of Example 1 also dropped from 1.37 V to 1.06 V, and Example 2 , The minimum voltage is 1.36V to 1.01V
Comparative example 1 which is equivalent to the conventional battery
The voltage drop was much smaller than that of the batteries of Nos. 1 to 2, and it was clearly shown that the battery of the present invention had a better storability than the conventional battery.

That is, LiB (C
The battery of Comparative Example 1 using ₆ H ₅ ) ₄ showed a drastic decrease in the minimum voltage from 1.06 V to 0.2 V after storage at 80 ° C. for 10 days, and Comparative Example 2 using LiBF ₄ as the electrolyte. In the case of the battery No. 1, the minimum voltage dropped from 1.30 V to 0.00 V or less after storage at 80 ° C. for 10 days, and it was not in a situation where it could be used as a battery at all, but Example 1
Battery 2 had a minimum voltage of 1. even after storage at 80 ° C for 10 days.
The voltages were 06 V and 1.01 V, indicating that the storability was excellent.

It should be noted that, when comparing among the examples, the example 1
In the battery of No. 2, the minimum voltage after storage was higher and the storability was more excellent because the metal electron / anion central atom (molar ratio) of LiBSA used was higher than that in Example 2.

Further, the above-mentioned Examples 1-2 and Comparative Examples 1--1
Charge the second battery to 3.5V at 100mA to 0.3A
After measuring the minimum voltage when discharging for 0.01 seconds,
The battery was stored under constant voltage of 3.5 V at 80 ° C. for 10 days, and the minimum voltage of the battery after storage was measured in the same manner as above to examine the deterioration of the battery performance. The results are shown in Table 2.

[0062]

[Table 2]

As shown in Table 2, the batteries of Examples 1 and 2 had a higher minimum voltage after storage and excellent storage properties as compared with the battery of Comparative Example 2. The battery of Comparative Example 1 cannot withstand a high voltage of 3.5 V or higher because the electrolyte does not have an electron-withdrawing group, and the electrolyte decomposes before reaching 3.5 V, Could not be charged.

In the battery of Comparative Example 2, the electrolyte has an electron-withdrawing group, but it is an inorganic salt and an organic anion is bonded to the anion center atom via an oxygen atom. Therefore, as shown in Table 2, the minimum voltage after storage was low and the storability was poor.

On the other hand, in the batteries of Examples 1 and 2, since the electrolyte has an electron-withdrawing organic substituent bonded to the anion center atom via an oxygen atom, the voltage of 3.5 V or more is used. It was possible to exhibit excellent storability even at high voltage.

As described in the foregoing, in the present invention, as the electrolyte of the electrolytic solution, for example lithium Boronji salicylate [LiB (-O-C (= O ) -C 6 H 4 -O
−) ₂ ] such as group III b to V, which is an anion center.
An organic metal salt in which an electron-withdrawing organic substituent is bonded to an atom of group b through an oxygen atom is used, or electron withdrawing is performed from an atom of group IIIb to group V serving as an anion center. Which is a salt of an organometallic salt system to which a polar organic substituent is bonded, and which has a molar ratio of a metal atom forming a counter cation to the anion center atom and the anion center atom [ie, metal atom / anion center atom By using an organic metal salt having a (molar ratio) of more than 1, it was possible to provide an organic electrolyte battery having excellent storability.

[Brief description of drawings]

FIG. 1 is a sectional view schematically showing an example of an organic electrolyte battery according to the present invention.

[Explanation of symbols]

 1 Positive electrode 2 Negative electrode 3 Separator 4 Electrolyte

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Akira Kawakami 1-88, Tora, Ibaraki-shi, Osaka Within Hitachi Maxell Co., Ltd. (72) Inventor Ginnosuke Tanaka 89, Sakai-shi, Osaka Prefecture Osaki Industrial Co., Ltd. In the company

Claims (4)

[Claims] 1. An organic electrolyte battery comprising a negative electrode made of an alkali metal or a compound containing an alkali metal, a positive electrode, and an organic electrolyte, which is a group IIIb which is an anion center as an electrolyte of the organic electrolyte. 2. An organic electrolyte battery, wherein an organic metal salt in which an electron-withdrawing organic substituent is bonded to an atom of group V to group b via an oxygen atom is used. 2. The organic electrolyte solution battery according to claim 1, wherein an atom serving as an anion center of the electrolyte of the organic electrolyte solution has an atomic weight of 30 or less. 3. The organic electrolytic solution battery according to claim 1, wherein the atom serving as the anion center of the electrolyte of the organic electrolytic solution is a B (boron) atom. 4. A negative electrode comprising an alkali metal or a compound containing an alkali metal, a positive electrode, and an organic electrolytic solution battery having an organic electrolytic solution as its constituent elements, wherein as an electrolyte of the organic electrolytic solution, a group IIIb group serving as an anion center. To a group V metal-organic salt-based salt having an electron-withdrawing organic substituent bonded to the atom, and a metal atom and an anion center atom forming a counter cation with respect to the anion center atom. The molar ratio [metal atom / central atom of anion (molar ratio)] is 1
An organic electrolyte battery comprising a larger organic metal salt.