JPS6089075A - Nonaqueous electrolyte secondary battery - Google Patents
Nonaqueous electrolyte secondary batteryInfo
- Publication number
- JPS6089075A JPS6089075A JP58197011A JP19701183A JPS6089075A JP S6089075 A JPS6089075 A JP S6089075A JP 58197011 A JP58197011 A JP 58197011A JP 19701183 A JP19701183 A JP 19701183A JP S6089075 A JPS6089075 A JP S6089075A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- alcohol
- solvent
- aqueous electrolyte
- secondary battery
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はリチウム又はリチウムを含む合金を活物質とす
る負極と、三酸化上リプダン、五酸化Ｊｉナジウム、チ
タン或いはニオづの硫化物、セレシ化物などを活物質と
する正極、少くとも一つの＾
溶媒と少くとも一つの溶質とからなる非水電解液とを備
えた非水電解液二次電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a negative electrode using lithium or an alloy containing lithium as an active material, and a sulfide of trioxide, potassium dihydride, sodium pentoxide, titanium or niobium, The present invention relates to a non-aqueous electrolyte secondary battery comprising a positive electrode using selecide or the like as an active material, and a non-aqueous electrolyte comprising at least one solvent and at least one solute.
Ｏ従来技術
この種電池は放電時にイオンとなって溶出ｊ、・たリチ
ウムが充′＃ｊ１時鑑二金属リチウムとして負倫表面に
゛確性するのであるが、この電析リチウムは表を分解し
非水電解液を劣下させるに至り充放電サイクル特性が悪
いという間靭があっ声。Prior Art In this type of battery, during discharge, lithium elutes as ions and is deposited on the surface of the battery as bimetallic lithium, but this electrodeposited lithium does not decompose the surface. There are complaints that the non-aqueous electrolyte deteriorates and its charge/discharge cycle characteristics deteriorate.
Ｑ９発明の目的
本発明は充放電りイクル特性に優れた非水電解液二次電
池を提供することを目的とする。Q9 Purpose of the Invention The purpose of the present invention is to provide a non-aqueous electrolyte secondary battery with excellent charge/discharge cycle characteristics.
・発明の構成
本発明は上記目的を達成すべくなされたものでありその
要旨とするところは、リチウム又はリチウムを含む合金
を活物質とする負極と、正極と、少くとも一つの溶媒と
少くとも一つの溶質とからなる非水電解液とを備え、前
記非水電解液にアルコール（一般式Ｒ−ＯＨ）を添加し
たことを特徴とする非水電解液二次電池にある。・Structure of the Invention The present invention has been made to achieve the above object, and its gist is that: a negative electrode whose active material is lithium or an alloy containing lithium; a positive electrode; at least one solvent; A non-aqueous electrolyte secondary battery comprising a non-aqueous electrolyte consisting of one solute and an alcohol (general formula R-OH) added to the non-aqueous electrolyte.
本発明電池によれば、非水電解液に添加したア出、電析
が生じることになり、活性な電析リチウムが直接非水電
解液と接しないため活性な電析リチウムと溶媒との反応
が抑制されるので充放電１イクル特性が改善される。According to the battery of the present invention, the addition of the active electrodeposited lithium to the non-aqueous electrolyte causes electrodeposition, and since the active electrodeposited lithium does not come into direct contact with the non-aqueous electrolyte, the active electrodeposited lithium reacts with the solvent. is suppressed, so the charging/discharging one-cycle characteristics are improved.
（ホ）実 施 例 以下本発明の実施例につき図面に基づき説明する。(e) Implementation example Embodiments of the present invention will be described below based on the drawings.
第１図は電池の半断面図を示し、＋１１１２１はステン
レス族の正負掻出であってボリプ０ピレシよりなる絶縁
パラ中シジ（３）により隔離されている。（４）はリチ
ウム圧延板よりなる負極でありて負掻出（２１の内底面
に固着せる負極集電体（５）に圧着されている。FIG. 1 shows a half cross-sectional view of the battery, and +11121 is a positive and negative plate of stainless steel group, and is separated by an insulating parallel medium sieve (3) made of polypropylene. (4) is a negative electrode made of a lithium rolled plate, which is crimped to a negative electrode current collector (5) fixed to the inner bottom surface of the negative electrode (21).
（６）は正極であって二硫化チタン活物質に導電剤とし
てのアセチレンブラック及び結着剤としてのフッ素樹脂
粉末を重量比で１３０：１０：１０の割合で混合した合
剤を正極固定用り：７り（７）内に成型してなり、正極
缶（１）の内底面に固着した正極集電体（８）に圧接さ
れている。（９）はポリづ０じレン不織布よりなるｔパ
レータであって、このｔパレータに次遅の電解液が含浸
されている。(6) is a positive electrode, in which a mixture of titanium disulfide active material, acetylene black as a conductive agent, and fluororesin powder as a binder are mixed in a weight ratio of 130:10:10 is used to fix the positive electrode. : 7 (7), and is pressed into contact with the positive electrode current collector (8) fixed to the inner bottom surface of the positive electrode can (1). (9) is a T-parator made of a polyurethane nonwoven fabric, and this T-parator is impregnated with the following electrolytic solution.
即ち、電解液は溶媒としてのづｏｅレジカーボネートに
溶質としての過塩素酸リチウムを１ｔル／ｌ溶解したも
のであり、この電解液には２メト＋ジエタノール又はジ
エチレングリコール七ツメチルエーテルが添加されてい
る。That is, the electrolytic solution is one in which 1 ton/l of lithium perchlorate as a solute is dissolved in carbonate as a solvent, and 2 meth+diethanol or diethylene glycol methyl ether is added to this electrolytic solution. .
第２図は２メト＋ジエタノールを添加した非水電解液を
用いて組立てた電池におけるサイクル数と２メト＋ジエ
タノールの添加量割合との関係を示す図であり、又第Ｓ
図はジエチレングリコール七ツメチルエーテルを添加し
た非水電解液を用いて組立てた電池におけるサイクル数
とジエチしシジリコール七ツメチルエーテルの添加量割
合との関係を示す図である。Figure 2 is a diagram showing the relationship between the number of cycles and the proportion of 2meth+diethanol added in a battery assembled using a non-aqueous electrolyte to which 2meth+diethanol was added.
The figure shows the relationship between the number of cycles and the ratio of the amount of diethylene glycol 7-methyl ether added in a battery assembled using a non-aqueous electrolyte containing diethylene glycol 7-methyl ether.
尚、第２図及び第５図における条件は充電電流２ｍＡ、
充電終止電圧４．Ｏｖとし、放電電流２ｍＡで放電し放
電時間が６時間の時点で電池電圧が１５ｖ以下となった
ものは電池寿命が尽きたものとした。The conditions in Figures 2 and 5 are a charging current of 2 mA,
Charging end voltage 4. Ov, and if the battery voltage became 15 V or less after discharging at a discharge current of 2 mA and the discharge time was 6 hours, the battery life was considered to have expired.
（へ）発明の効果
第２図及び第３図から明白なるようにアルコールを添加
すれば充放電サイクル特性が向上するのが伺え、特にそ
の添加量として溶媒に対して０゜５〜５．０七ル％の範
囲で最も優れた特性を示すことがわかる。(f) Effects of the invention As is clear from Figures 2 and 3, it can be seen that the charge/discharge cycle characteristics are improved by adding alcohol, especially when the amount of alcohol added is 0°5 to 5.0% relative to the solvent. It can be seen that the most excellent properties are exhibited in the range of 7%.
この理由を考察するに、アルコールとリチウムなり、活
性な電析リチウムが直接非水電解液と接しないため活性
な電析リチウムと溶媒との反応が抑制されるので充放電
サイクル特性が改善される。The reason for this is that alcohol and lithium, active electrodeposited lithium, do not come into direct contact with the non-aqueous electrolyte, which suppresses the reaction between active electrodeposited lithium and the solvent, improving charge/discharge cycle characteristics. .
上述した如く、非水電解液にアルコールを添加すること
により充放電サイクル特性に優れた非水電解液二次電池
を得ることができるものであり、その工業的価値は極め
て大である。As mentioned above, by adding alcohol to a nonaqueous electrolyte, a nonaqueous electrolyte secondary battery with excellent charge/discharge cycle characteristics can be obtained, and its industrial value is extremely large.
箪１図は本発明電池の半断面図、第２図及び第３図は各
柚アルコールの添加量割合とサイクル数との関係を示す
図である。
（１）・・・正極缶、１２１・・・負掻出、（３）・・
・絶縁パラ士、７り、（４）・・・負極、（６）・・・
正極、（９）・・・ｔパレータ。Figure 1 is a half-sectional view of the battery of the present invention, and Figures 2 and 3 are diagrams showing the relationship between the addition amount ratio of each yuzu alcohol and the number of cycles. (1)...Positive electrode can, 121...Negative scraping, (3)...
・Insulation parameter, 7ri, (4)...Negative electrode, (6)...
Positive electrode, (9)...t palator.
Claims (1)
極と、正極と、少くとも一つの溶媒と少くとも一つの溶
質とからなる非水電解液とを備え、前記非水電解液にア
ルコール（一般式Ｒ−ＯＨ）を添加したことを特徴とす
る非水電解液二次電池。 ■ 前記アルコールの添加量が溶媒に対して０゜５〜５
、〇七ル％であることを特徴とする特許請求の範囲第■
項記載の非水電解液二次電池。 ■ 前記アルコールが２メト＋ジエタノール又はジエチ
レーＪクリコール七ツメチルエーテルであることを特徴
とする特許請求の範囲第■項記載の非水電解液二次電池
。[Scope of Claims] ■ A negative electrode comprising lithium or an alloy containing lithium as an active material, a positive electrode, and a non-aqueous electrolyte comprising at least one solvent and at least one solute; A non-aqueous electrolyte secondary battery characterized in that alcohol (general formula R-OH) is added to the liquid. ■ The amount of alcohol added is 0°5 to 5% relative to the solvent.
, 〇7%, Claim No.■
The non-aqueous electrolyte secondary battery described in . (2) The non-aqueous electrolyte secondary battery according to claim (2), wherein the alcohol is 2 meth+diethanol or diethyl J glycol 7 methyl ether.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58197011A JPS6089075A (en) | 1983-10-20 | 1983-10-20 | Nonaqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58197011A JPS6089075A (en) | 1983-10-20 | 1983-10-20 | Nonaqueous electrolyte secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6089075A true JPS6089075A (en) | 1985-05-18 |
| JPH0479476B2 JPH0479476B2 (en) | 1992-12-16 |
Family
ID=16367297
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58197011A Granted JPS6089075A (en) | 1983-10-20 | 1983-10-20 | Nonaqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6089075A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011060444A (en) * | 2009-09-07 | 2011-03-24 | Seiko Instruments Inc | Electrolyte for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery using the same |
| JP2014032969A (en) * | 2013-10-18 | 2014-02-20 | Seiko Instruments Inc | Electrolytic solution for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery using the same |
| WO2019230533A1 (en) * | 2018-05-29 | 2019-12-05 | 株式会社村田製作所 | Electrolyte for lithium-ion secondary cell, and lithium-ion secondary cell |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130073A (en) * | 1983-01-17 | 1984-07-26 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithic battery |
-
1983
- 1983-10-20 JP JP58197011A patent/JPS6089075A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59130073A (en) * | 1983-01-17 | 1984-07-26 | Nippon Telegr & Teleph Corp <Ntt> | Electrolyte for lithic battery |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011060444A (en) * | 2009-09-07 | 2011-03-24 | Seiko Instruments Inc | Electrolyte for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery using the same |
| JP2014032969A (en) * | 2013-10-18 | 2014-02-20 | Seiko Instruments Inc | Electrolytic solution for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery using the same |
| WO2019230533A1 (en) * | 2018-05-29 | 2019-12-05 | 株式会社村田製作所 | Electrolyte for lithium-ion secondary cell, and lithium-ion secondary cell |
| JPWO2019230533A1 (en) * | 2018-05-29 | 2021-06-17 | 株式会社村田製作所 | Lithium-ion secondary battery electrolyte and lithium-ion secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0479476B2 (en) | 1992-12-16 |
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