JPH0298057A - Organic electrolyte battery - Google Patents
Organic electrolyte batteryInfo
- Publication number
- JPH0298057A JPH0298057A JP25019088A JP25019088A JPH0298057A JP H0298057 A JPH0298057 A JP H0298057A JP 25019088 A JP25019088 A JP 25019088A JP 25019088 A JP25019088 A JP 25019088A JP H0298057 A JPH0298057 A JP H0298057A
- Authority
- JP
- Japan
- Prior art keywords
- organic electrolyte
- battery
- lithium
- mixture
- internal resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000005486 organic electrolyte Substances 0.000 title claims abstract description 25
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 9
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 claims abstract description 8
- 159000000000 sodium salts Chemical class 0.000 claims abstract description 7
- ITMCEJHCFYSIIV-UHFFFAOYSA-N triflic acid Chemical compound OS(=O)(=O)C(F)(F)F ITMCEJHCFYSIIV-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003960 organic solvent Substances 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 abstract description 8
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 229910052731 fluorine Inorganic materials 0.000 abstract description 6
- 239000011737 fluorine Substances 0.000 abstract description 6
- -1 fluorine ions Chemical class 0.000 abstract description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract description 2
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052700 potassium Inorganic materials 0.000 abstract description 2
- 239000011591 potassium Substances 0.000 abstract description 2
- 229910001414 potassium ion Inorganic materials 0.000 abstract description 2
- 239000011734 sodium Substances 0.000 abstract description 2
- 229910001415 sodium ion Inorganic materials 0.000 abstract description 2
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 239000012535 impurity Substances 0.000 description 4
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 4
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 4
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012046 mixed solvent Substances 0.000 description 3
- XGPOMXSYOKFBHS-UHFFFAOYSA-M sodium;trifluoromethanesulfonate Chemical compound [Na+].[O-]S(=O)(=O)C(F)(F)F XGPOMXSYOKFBHS-UHFFFAOYSA-M 0.000 description 3
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- QLOAVXSYZAJECW-UHFFFAOYSA-N methane;molecular fluorine Chemical compound C.FF QLOAVXSYZAJECW-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- GLGXXYFYZWQGEL-UHFFFAOYSA-M potassium;trifluoromethanesulfonate Chemical compound [K+].[O-]S(=O)(=O)C(F)(F)F GLGXXYFYZWQGEL-UHFFFAOYSA-M 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- HGJLYMGBCAKBLK-UHFFFAOYSA-N sodium;trifluoromethanesulfonic acid Chemical compound [Na].OS(=O)(=O)C(F)(F)F HGJLYMGBCAKBLK-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
- H01M6/166—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte by the solute
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、トリフルオロメタンスルホン酸のナトリウム
塩、カリウム塩もしくは両者の混合物（ＭＣＦ３Ｓ０３
：ただしＭはナトリウム、カリウム）を溶質とする有機
電解質を用いて構成される有機電解質電池に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to trifluoromethanesulfonic acid sodium salt, potassium salt or a mixture of both (MCF3S03
: However, M relates to an organic electrolyte battery constructed using an organic electrolyte containing (sodium, potassium) as a solute.
従来の技術
従来の有機電解質電池では、負極としてリチウム等のア
ルカリ金属やアルカリ土類金属を、正極として二酸化マ
ンガンやフッ化黒鉛などを用い、電解液としては、プロ
ピレンカーボネート、ｒ−ブチロラクトンなどの有機溶
媒に、過塩素酸リチウムやヘキサフルオロリン酸リチウ
ム、トリフルオロメタンスルホン酸リチウムなトラ溶質
トシテ溶解した有機電解質を使用している。上記の有機
電解質に使用される溶質のうち、トリフルオロメタンス
ルホン酸リチウムには、過塩素酸リチウムと比較して充
電時や過放電時などの場合に爆発等の危険が無く安全性
において優れている特徴があり、有機電解質電池用の電
解液の溶質として知られている。Conventional technology Conventional organic electrolyte batteries use alkali metals such as lithium or alkaline earth metals as negative electrodes, manganese dioxide or graphite fluoride as positive electrodes, and organic electrolytes such as propylene carbonate or r-butyrolactone as electrolytes. The solvent used is an organic electrolyte in which solutes such as lithium perchlorate, lithium hexafluorophosphate, and lithium trifluoromethanesulfonate are dissolved. Among the solutes used in the above organic electrolytes, lithium trifluoromethanesulfonate has superior safety compared to lithium perchlorate because it does not pose the risk of explosion during charging or overdischarging. It is known as a solute in electrolytes for organic electrolyte batteries.
発明が解決しようとする課題
シカシ、トリフルオロメタンスルホン酸リチウムを溶質
とした有機電解質電池は内部抵抗が高く、電池保存時の
内部抵抗の上昇率も速いという欠点がある。これはトリ
フルオロメタンスルホン酸リチウム中の不純物が、電池
の保存中にリチウム負極と反応し、リチウム負極表面に
不活性な被膜を作ることが原因であると思われる。一般
にトリフルオロメタンスルホン酸リチウム中の不純物の
除去はトリフルオロメタンスルホン酸リチウムの製造工
程１殆んど不可能であると言われている。Problems to be Solved by the Invention Organic electrolyte batteries using lithium trifluoromethanesulfonate as a solute have a drawback of high internal resistance and a rapid rate of increase in internal resistance during battery storage. This is thought to be because impurities in lithium trifluoromethanesulfonate react with the lithium negative electrode during storage of the battery, forming an inert film on the surface of the lithium negative electrode. It is generally said that removal of impurities from lithium trifluoromethanesulfonate is almost impossible in lithium trifluoromethanesulfonate production process 1.
課題を解決するだめの手段
本発明の有機電解質電池は、有機溶媒にトリフルオロメ
タンヌルホン酸のナトリウム４．力！Ｊウム塩もしくは
両者の混合物を溶解した有機電解質を用いるものである
。Means for Solving the Problems The organic electrolyte battery of the present invention contains 4. sodium trifluoromethane sulfonic acid in an organic solvent. Power! This method uses an organic electrolyte in which Jium salt or a mixture of both is dissolved.
作 用
上記の有機電解液を用いることにより、本発明電池は内
部抵抗の上昇を抑えることができる。溶質としてトリフ
ルオロメタンスルホン酸リチウムを用いた電池の場合に
は、リチウム負極表面にフッ化リチウムが存在すること
が確認されたが、このフッ化リチウムが非導電性被膜を
形成し、内部抵抗が上昇すると思われる。従って、トリ
フルオロメタンスルホン酸リチウム中のフッ素不純物が
電池の内部抵抗上昇の原因と推定される。これに対して
トリフルオロメタン７／Ｌ／ホン酸リチウムとほぼ同量
のフッ素不純物を含むトリフルオロメタンスルホン酸の
ナトリウム塩、カリウム塩もしくは両者の混合物を用い
た本発明電池では、電解液中に存在するナトリウムイオ
ンやカリウムイオンのためにフッ素イオンが何らかの理
由によりリチウム負極と反応せず、リチウム負極表面か
ら検出もされず、従ってフッ化リチウム被膜を形成しな
くなるため内部抵抗の上昇が抑えられると思われる。Function: By using the above organic electrolyte, the battery of the present invention can suppress an increase in internal resistance. In the case of batteries using lithium trifluoromethanesulfonate as a solute, it was confirmed that lithium fluoride was present on the surface of the lithium negative electrode, but this lithium fluoride formed a non-conductive film, increasing the internal resistance. It seems that it will. Therefore, it is presumed that fluorine impurities in lithium trifluoromethanesulfonate are the cause of the increase in internal resistance of the battery. On the other hand, in the battery of the present invention using trifluoromethanesulfonic acid sodium salt, potassium salt, or a mixture of both, which contains approximately the same amount of fluorine impurities as trifluoromethane 7/L/lithium phonate, the Due to sodium ions and potassium ions, fluorine ions do not react with the lithium negative electrode for some reason and are not detected from the lithium negative electrode surface, and therefore do not form a lithium fluoride film, which seems to suppress the increase in internal resistance. .
実施例 以下本発明の実施例について述べる。Example Examples of the present invention will be described below.
（電池構成）
正極は９０ ｗｔ ％の熱処理二酸化マンガン、導電剤
としてのグラファイト５ ｗｔ ％ 、結着剤としての
フッ素樹脂５ ｗｔ ％から成シ、負極はリチウムの圧
延板を所定寸法に切断したものを用いた。(Battery configuration) The positive electrode is made of 90 wt % heat-treated manganese dioxide, 5 wt % graphite as a conductive agent, and 5 wt % fluororesin as a binder. The negative electrode is a rolled lithium plate cut into specified dimensions. was used.
また、セパレータはマイクロ多孔ポリプロピレンフィル
ムとし、電解質は下記の実施例および比較例に示すもの
を用いて直径１７．Ｏｎ、高さ３４．。In addition, the separator was a microporous polypropylene film, and the electrolyte was one shown in the Examples and Comparative Examples below. On, height 34. .
朋の円筒型電池を作成した。I made my friend's cylindrical battery.
（実施例１）
プロピレンカーボネートとジメトキシエタンとの容量比
１：１の混合溶媒に、トリフルオロメタンヌルホン酸カ
リウムを０．５ ｍｏ ｌ ／ ｌの割合で溶解して有
機電解質を作り、前記電池構成の電池中に注入して本発
明電池１とした。(Example 1) Potassium trifluoromethane sulfonate was dissolved at a ratio of 0.5 mol/l in a mixed solvent of propylene carbonate and dimethoxyethane at a volume ratio of 1:1 to prepare an organic electrolyte, and the above battery configuration was prepared. This was injected into a battery to obtain Battery 1 of the present invention.
（実施例２）
プロピレンカーボネートとジメトキシエタンとの容量比
１：１の混合溶媒に、トリフルオロメタンスルホン酸ナ
トリウムを０．５ ｍｏ ｌ ／ ｌの割合で溶解して
有機電解質を作り、前記構成の電池中に注入して本発明
電池２としだ。(Example 2) An organic electrolyte was prepared by dissolving sodium trifluoromethanesulfonate at a ratio of 0.5 mol/l in a mixed solvent of propylene carbonate and dimethoxyethane at a volume ratio of 1:1, and a battery with the above configuration was prepared. The battery 2 of the present invention is prepared by injecting it into the battery.
（比較例）
プロピレンカーボネートとジメトキシエタンとの容量比
１：１の混合溶媒にトリフルオロメタンスルホン酸リチ
ウム０．５ ｍｏ ｌ ／ ｌの割合で溶解して有機電
解質を作り、前記電池構成の電池中に注入して比較用電
池とした。(Comparative example) An organic electrolyte was prepared by dissolving lithium trifluoromethanesulfonate at a ratio of 0.5 mol/l in a mixed solvent of propylene carbonate and dimethoxyethane with a volume ratio of 1:1, and the organic electrolyte was dissolved in a battery having the above battery configuration. This was used as a comparison battery.
これらの本発明電池１．２と比較用電池を６０℃の温度
中に保存し、その内部抵抗の経時変化を調査した。その
結果を第１図に示す。第１図から明らかなように、本発
明電池１，２は比較用電池と比較して、内部抵抗の上昇
が抑えられている。These invention batteries 1.2 and comparative batteries were stored at a temperature of 60° C., and changes in internal resistance over time were investigated. The results are shown in FIG. As is clear from FIG. 1, the increase in internal resistance of the batteries 1 and 2 of the present invention is suppressed compared to the comparison battery.
これは比較用電池で起きたフッ素イオンとリチウム負極
との反応で生成される表面の不活性な被膜の発生が、本
発明電池１，２では何らかの理由により抑えられるため
に保存特性が優れているものも同様であった。This is because the generation of an inert film on the surface generated by the reaction between fluorine ions and the lithium negative electrode, which occurred in the comparative batteries, is suppressed for some reason in the batteries 1 and 2 of the present invention, and therefore the storage characteristics are excellent. Things were the same.
また、トリフルオロメタンヌルホン酸リチウムを用いる
場合の長所である安全性につ−ても本発明電池１，２．
比較用電池各々１０ケづつについて１Ａの定電流放電を
４時間行い、放電容量の約３倍迄過放電を行ったが、双
方共破裂９発火したものは無く、このことから本発明電
池１，２は比較用電池と比較しても同等の安全性を持つ
と言える。溶質濃度は１．０ ｍｏｌ ／ ｌ 、 １
．５ ｍｏｌ ／ ｌの電池についても同様であった。In addition, regarding safety, which is an advantage of using lithium trifluoromethane sulfonate, batteries 1 and 2 of the present invention.
10 comparative batteries each were discharged at a constant current of 1A for 4 hours and over-discharged to approximately 3 times the discharge capacity, but none of them burst or caught fire. From this, the batteries of the present invention 1, It can be said that battery No. 2 has the same level of safety as the comparative battery. Solute concentration is 1.0 mol/l, 1
．． The same was true for the 5 mol/l battery.
さらにトリフルオロメタンスルホン酸のナトリウム塩、
カリウム塩の電解液中の溶質濃度０．３ｍｏｌ／ｄ 、
０．５ｍｏｌ／ｌ、 １．０ｍｏｌ／ｌ、 １．５ｍ
ｏ １ ／ ｌ、１．８ｍｏｌ／ｌの各々について電池
製造直後の内部抵抗を測定し第２図に示した。Furthermore, the sodium salt of trifluoromethanesulfonic acid,
The solute concentration in the electrolyte of potassium salt is 0.3 mol/d,
0.5mol/l, 1.0mol/l, 1.5m
The internal resistances of the batteries of o 1/l and 1.8 mol/l were measured immediately after battery manufacture and are shown in FIG.
第２図よシ、溶質濃度が○、ｓｍｏｌ／＃以上。As shown in Figure 2, the solute concentration is ○, smol/# or more.
１．５ｍｏｌ／ｌ以下の範囲で内部抵抗が最小となる。The internal resistance becomes minimum in the range of 1.5 mol/l or less.
したがって溶質濃度は０．５ ｍｏ ｌ ／ １以上、
１．６ｍｏ ｌ ／ ｌ以下が最良である。また、トリ
フルオロメタンスルホン酸のナトリウム塩、カリウム塩
の混合物を溶質として使用した場合にも、保存後の内部
抵抗、安全性、溶質濃度と内部抵抗の関係の全てにおい
て同様の結果が得られた。Therefore, the solute concentration is 0.5 mol/1 or more,
The best value is 1.6 mol/l or less. Furthermore, when a mixture of sodium salt and potassium salt of trifluoromethanesulfonic acid was used as a solute, similar results were obtained in terms of internal resistance after storage, safety, and the relationship between solute concentration and internal resistance.
発明の効果
以上のように、本発明による有機電解液を用いることに
より、安全性をそこなうことなく有機電解質電池の内部
抵抗上昇を抑えることができる。Effects of the Invention As described above, by using the organic electrolyte according to the present invention, it is possible to suppress an increase in internal resistance of an organic electrolyte battery without impairing safety.
第１図は本発明電池と比較用電池の保存特性を示した図
、第２図は電解液中の溶質濃度と電池製造直後の内部抵
抗を示した図である。FIG. 1 is a diagram showing the storage characteristics of the battery of the present invention and a comparative battery, and FIG. 2 is a diagram showing the solute concentration in the electrolyte and the internal resistance immediately after battery manufacture.
Claims (2)
有機電解質より成る電池で、有機溶媒に溶質としてトリ
フルオロメタンスルホン酸のナトリウム塩、カリウム塩
もしくは両者の混合物を溶解した有機電解液を用いたこ
とを特徴とする有機電解質電池。(1) A battery consisting of a negative electrode using a light metal such as lithium, a positive electrode, and an organic electrolyte, using an organic electrolyte in which sodium salt, potassium salt of trifluoromethanesulfonic acid, or a mixture of the two is dissolved as a solute in an organic solvent. An organic electrolyte battery characterized by:
カリウム塩もしくは両者の混合物の濃度が０．５ｍｏｌ
／ｌ以上１．５ｍｏｌ／ｌ以下であることを特徴とする
特許請求の範囲第１項記載の有機電解質電池。(2) sodium salt of trifluoromethanesulfonic acid,
Concentration of potassium salt or mixture of both is 0.5 mol
2. The organic electrolyte battery according to claim 1, wherein the organic electrolyte battery has a concentration of mol/l or more and 1.5 mol/l or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25019088A JPH0298057A (en) | 1988-10-04 | 1988-10-04 | Organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP25019088A JPH0298057A (en) | 1988-10-04 | 1988-10-04 | Organic electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0298057A true JPH0298057A (en) | 1990-04-10 |
Family
ID=17204153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP25019088A Pending JPH0298057A (en) | 1988-10-04 | 1988-10-04 | Organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0298057A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0832500A1 (en) * | 1995-06-07 | 1998-04-01 | Eveready Battery Company, Inc. | Potassium ion additives for voltage control and performance improvement in nonaqueous cells |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55144663A (en) * | 1979-04-27 | 1980-11-11 | Sanyo Electric Co Ltd | Battery with non-aqueous electrolyte |
| JPS5776763A (en) * | 1980-09-02 | 1982-05-13 | Duracell Int | Method of improving safety of nonaqueous chemical battery |
| JPS6086770A (en) * | 1983-09-19 | 1985-05-16 | デユラセル・インターナシヨナル・インコーポレーテツド | Nonaqueous chemical battery |
-
1988
- 1988-10-04 JP JP25019088A patent/JPH0298057A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPS55144663A (en) * | 1979-04-27 | 1980-11-11 | Sanyo Electric Co Ltd | Battery with non-aqueous electrolyte |
| JPS5776763A (en) * | 1980-09-02 | 1982-05-13 | Duracell Int | Method of improving safety of nonaqueous chemical battery |
| JPS6086770A (en) * | 1983-09-19 | 1985-05-16 | デユラセル・インターナシヨナル・インコーポレーテツド | Nonaqueous chemical battery |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0832500A1 (en) * | 1995-06-07 | 1998-04-01 | Eveready Battery Company, Inc. | Potassium ion additives for voltage control and performance improvement in nonaqueous cells |
| EP0832500A4 (en) * | 1995-06-07 | 2000-12-20 | Eveready Battery Inc | Potassium ion additives for voltage control and performance improvement in nonaqueous cells |
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