JPS5816303B2 - dench - Google Patents
denchInfo
- Publication number
- JPS5816303B2 JPS5816303B2 JP50100386A JP10038675A JPS5816303B2 JP S5816303 B2 JPS5816303 B2 JP S5816303B2 JP 50100386 A JP50100386 A JP 50100386A JP 10038675 A JP10038675 A JP 10038675A JP S5816303 B2 JPS5816303 B2 JP S5816303B2
- Authority
- JP
- Japan
- Prior art keywords
- electrolyte
- storage
- battery
- ether
- dithiocarbamate
- 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.)
- Expired
Links
Classifications
-
- Y02E60/122—
Landscapes
- Primary Cells (AREA)
Description
【発明の詳細な説明】
本発明は、リチウム、ナトリウム、マグネシウム、アル
ミニウムなどの軽金属を負極活物質とし有機溶媒と溶質
とからなる電解質を用いたいわける有機電解質電池の改
良に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement in an organic electrolyte battery using a light metal such as lithium, sodium, magnesium, or aluminum as a negative electrode active material and an electrolyte consisting of an organic solvent and a solute.
従来この種電池において、電解質の溶媒きしてテトラヒ
ドロフラン、トリメチレンオキサイドなどのエーテル系
化合物を用いる場合、特に低温における放電特性が向上
することが知られている。Conventionally, in this type of battery, it has been known that when an ether compound such as tetrahydrofuran or trimethylene oxide is used as the electrolyte solvent, the discharge characteristics, especially at low temperatures, are improved.
しかしこれらエーテル系溶媒は容易に酸化分解する性質
があり、エーテル系溶媒を含有する電解質を用いた電池
は、保存後の特性が悪化するという欠点を有していた。However, these ether-based solvents have the property of being easily oxidized and decomposed, and batteries using electrolytes containing ether-based solvents have had the disadvantage that their characteristics after storage deteriorate.
本発明は、これらエーテル系溶媒の安定化剤として、下
記の一般式で表されるジチオカルバミン酸金属塩を用い
ることにより、保存による電池性能の劣化を防止するも
のである。The present invention prevents deterioration of battery performance due to storage by using a dithiocarbamate metal salt represented by the following general formula as a stabilizer for these ether solvents.
Ｒ，Ｒ’はアルキル基またはアリール基、Ｍは金属で、
例えばＮａ、Ｌｉなどである。R and R' are an alkyl group or an aryl group, M is a metal,
For example, Na, Li, etc.
以下本発明を実施例により説明する。The present invention will be explained below with reference to Examples.
負極には厚さ０．３ ｍｍ、大きさ１０Ｘ２５龍の金属
リチウムシートに集電体のニッケルネットを埋め込んだ
ものを、また正極には弗化炭素と導電材のアセチレンブ
ラックと結着剤の弗素樹脂粉末とを重量比で１０：１：
２の割合で混合したものを集電体のニッケルネット上に
圧着成形した厚さ０、５ ｍｍ、大きさ１０１０Ｘ２５
のものをそれぞれ用いた。The negative electrode is a metal lithium sheet with a thickness of 0.3 mm and a size of 10 x 25 mm with a nickel net embedded as a current collector, and the positive electrode is made of carbon fluoride, acetylene black as a conductive material, and fluorine as a binder. Weight ratio of resin powder to 10:1:
A mixture of 2 parts and 2 parts was pressure-molded on a nickel net as a current collector, with a thickness of 0.5 mm and a size of 1010 x 25.
Each of these was used.
正極の理論容量は３５０ ｍＡｈである。電解質にはプ
ロピレンカーボネートとテトラヒドロフランとを容積比
で１：２の割合で混合した溶媒に、硼弗化リチウムを１
．０モル／ｌ溶解し、さらにジエチルジチオカルバミン
酸ナトリウムを各種濃度で溶解した
以下の５種用意した。The theoretical capacity of the positive electrode is 350 mAh. The electrolyte is a solvent made by mixing propylene carbonate and tetrahydrofuran in a volume ratio of 1:2, and 1 part of lithium borofluoride.
．． The following five types were prepared by dissolving 0 mol/l and further dissolving sodium diethyldithiocarbamate at various concentrations.
これらの電解質を上記正負極と組み合せて電池を作成し
保存前および７０℃で１力月保存後の放電特性を比較し
た結果を図に示す。Batteries were prepared by combining these electrolytes with the above positive and negative electrodes, and the results of comparing the discharge characteristics before storage and after storage at 70° C. for 1 month are shown in the figure.
放電条件は温度−２０°Ｃ，１５０Ω定抵抗負荷である
。The discharge conditions were a temperature of -20°C and a constant resistance load of 150Ω.
図の実線は保存前の特性を、また点線は保存後の特性を
示し１番号は対応する番号の上記電解質を用いた電池に
相当ｒる。The solid line in the figure shows the characteristics before storage, and the dotted line shows the characteristics after storage, and the number 1 corresponds to a battery using the above electrolyte with the corresponding number.
図から明らかなように、ジエチルジチオカルバミン酸す
） ＩＪウムを添加した電解質を用いた電池は、７０℃
で１力月保存した後においてもほとんど放電特性の劣化
が認められない。As is clear from the figure, the battery using the electrolyte containing diethyldithiocarbamic acid (IJ) was heated at 70°C.
Almost no deterioration in discharge characteristics was observed even after storage for one month.
ただしその添加量が１０００１１１）ｉｌｌまでになる
と１０〜１００ｐｐＩｎ添加したものに比較して初期特
性が劣る傾向がみられる。However, when the amount added is up to 1000111)ill, there is a tendency for the initial characteristics to be inferior compared to those with 10 to 100 ppIn added.
なおジチオカルバミン酸金属塩としてジメチルジチオカ
ルバミン酸リチウム
ピロリジンジチオカルバミン酸ナトリウムを用いても同
様の効果が認められた。A similar effect was also observed when lithium dimethyldithiocarbamate pyrrolidine sodium dithiocarbamate was used as the dithiocarbamate metal salt.
またエーテル系溶媒として、トリメチレンオキサイド、
テトラヒドロピラン、ジエチルエーテル等を用いる場合
に効果が認められた。In addition, trimethylene oxide,
Effects were observed when tetrahydropyran, diethyl ether, etc. were used.
保存前後における電池の電解質の分析結果から。Based on the analysis results of battery electrolytes before and after storage.
ジチオカルバミン酸金属塩はこの種エーテル系溶媒から
の過酸化物生成を防止する効果のあることがわかった。It was found that dithiocarbamate metal salts are effective in preventing peroxide formation from this type of ether solvent.
以上のように本発明は、電解質の溶媒成分にエーテル系
化合物を用いる有機電解質電池の保存による性能劣化を
防止することができる。As described above, the present invention can prevent performance deterioration due to storage of an organic electrolyte battery using an ether compound as a solvent component of the electrolyte.
図面は本発明の実施例におけるジエチルジチオカルバミ
ン酸ナトＩＪウム含有量の異なる電解質を用いた電池の
放電特性を比較した図である。The drawing is a diagram comparing the discharge characteristics of batteries using electrolytes with different sodium diethyldithiocarbamate contents in Examples of the present invention.
Claims (1)
とも１種のエーテル系化合物からなる溶痢と少なくとも
１種の溶質とからなる電解質を有し前記電解質中にジチ
オカルバミン酸金属塩を金型することを特徴とする電池
。1. A positive electrode, a negative electrode containing a light metal as an active material, and an electrolyte consisting of at least one ether compound and at least one solute, and a dithiocarbamate metal salt is placed in the electrolyte in a mold. A battery characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50100386A JPS5816303B2 (en) | 1975-08-18 | 1975-08-18 | dench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP50100386A JPS5816303B2 (en) | 1975-08-18 | 1975-08-18 | dench |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5223623A JPS5223623A (en) | 1977-02-22 |
| JPS5816303B2 true JPS5816303B2 (en) | 1983-03-30 |
Family
ID=14272560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP50100386A Expired JPS5816303B2 (en) | 1975-08-18 | 1975-08-18 | dench |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816303B2 (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58192641A (en) * | 1982-05-06 | 1983-11-10 | Matsuoka Eng Kk | Precise manufacture of tightly wound tension coil spring |
| JP2582893B2 (en) * | 1989-03-31 | 1997-02-19 | 日立マクセル株式会社 | Organic electrolyte battery |
| JP7061065B2 (en) | 2015-11-13 | 2022-04-27 | シオン・パワー・コーポレーション | Additives for electrochemical cells |
| US10868306B2 (en) | 2017-05-19 | 2020-12-15 | Sion Power Corporation | Passivating agents for electrochemical cells |
| JP7210475B2 (en) | 2017-05-19 | 2023-01-23 | シオン・パワー・コーポレーション | Electrochemical cell passivator |
| CN110247113B (en) * | 2019-05-27 | 2021-08-13 | 西安交通大学 | Capacity-increasing functional electrolyte and preparation method and application thereof |
| US11872818B2 (en) * | 2021-03-10 | 2024-01-16 | Kyocera Document Solutions Inc. | Liquid tank and image forming apparatus |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3686038A (en) * | 1971-02-03 | 1972-08-22 | Du Pont | High energy density battery with trihydrocarbyl carbamate based electrolyte |
-
1975
- 1975-08-18 JP JP50100386A patent/JPS5816303B2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3686038A (en) * | 1971-02-03 | 1972-08-22 | Du Pont | High energy density battery with trihydrocarbyl carbamate based electrolyte |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5223623A (en) | 1977-02-22 |
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