JPS5920968A - Nonaqueous battery - Google Patents

Nonaqueous battery

Info

Publication number
JPS5920968A
JPS5920968A JP57130232A JP13023282A JPS5920968A JP S5920968 A JPS5920968 A JP S5920968A JP 57130232 A JP57130232 A JP 57130232A JP 13023282 A JP13023282 A JP 13023282A JP S5920968 A JPS5920968 A JP S5920968A
Authority
JP
Japan
Prior art keywords
active material
battery
discharge
polytrifluoromonochloroethylene
anode
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
Application number
JP57130232A
Other languages
Japanese (ja)
Inventor
Shuji Yamada
修司 山田
Takahisa Osaki
隆久 大崎
Yuichi Sato
祐一 佐藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP57130232A priority Critical patent/JPS5920968A/en
Publication of JPS5920968A publication Critical patent/JPS5920968A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/60—Selection of substances as active materials, active masses, active liquids of organic compounds
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To provide a nonaqueous battery being excellent in the discharge characteristics, especially, in the flatness of voltage-discharge characteristics, and in its energy density, by using polytrifluoromonochloroethylene of low polymerization degree as the active material for the anode. CONSTITUTION:In a battery comprising a cathode 5 made of an alkaline metal as its active material and electrolyte of nonaqueous solvent, the anode 1 used therein is such one as shaped from a mixture of polytrifluoromonochloroethylene, whose average molecular weight being 900-1,300, serving as the active material for the anode, with a conductive material and a binding agent. As the electrolyte, a solution, for example, of such electrolytes as lithium perchlorate and lithium borofluoride in such an organic solvent as propylene carbonate, gamma-butyrolactone, and dimethoxyethane is used. The nonaqueous battery thus constructed has been proved to have higher discharge voltage and longer discharge life than conventional batteries.

Description

【発明の詳細な説明】 〔発明の技術分野〕 本発明は非水電池に係り、更に詳しくは正極活物質を改
良した非水電池に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a non-aqueous battery, and more particularly to a non-aqueous battery with an improved positive electrode active material.

〔発明の技術的背景とその問題点〕[Technical background of the invention and its problems]

従来から負極の活物質としてリチウム、ナトリウム等の
アルカリ金属を用いた非水′電池は、エネルギー密度が
高く、広い温度領域で使用することができ、またその貯
蔵特性にも優れている等の理由によって、電卓、時計、
メモリのバックアップ電源として汎用されている。Conventionally, non-aqueous batteries that use alkali metals such as lithium and sodium as the active material of the negative electrode have high energy density, can be used in a wide temperature range, and have excellent storage characteristics. By Calculator, Clock,
It is commonly used as a backup power source for memory.

この非水電池の発電要素は、負極、電解液、正極から構
成されている。一般に、負極の活物質としては、リチウ
ム、ナトリウム等のアルカリ金属が用いられ、電解液と
しては、プロピレンカーボネート、γ−ブチロラクトン
、ジメトキシエタン等の有機溶媒中に、過塩素酸リチウ
ム、ホウフッ化リチウム等の電解質を溶解してなる溶液
が用いられている。The power generation element of this nonaqueous battery is composed of a negative electrode, an electrolyte, and a positive electrode. Generally, an alkali metal such as lithium or sodium is used as the active material of the negative electrode, and the electrolyte is lithium perchlorate, lithium borofluoride, etc. in an organic solvent such as propylene carbonate, γ-butyrolactone, or dimethoxyethane. A solution prepared by dissolving an electrolyte is used.

また、正極としては、アセテレンプ２ツク等の導電材と
、遷移金属のハロゲン化物あるいはその酸化物又はフッ
化炭素のような炭素のフッ化物等の固体の正極活物質と
の混合物が用いられている。In addition, as the positive electrode, a mixture of a conductive material such as acetylene chloride and a solid positive electrode active material such as a transition metal halide or its oxide, or a carbon fluoride such as fluorocarbon is used. .

このうち、優れた電池特性、例えば開路電圧が高く、放
電曲線が平担であるという性質を有する電池としては、
正極活物質にポリテトラフルオロエチレン又ハホリトリ
フルオロモノクロロエチレンを用いた非水電池が知られ
ている（特公昭５１−４２４５号＼明細書）。しかし、
高分子量のポリトリフルオロモノクロロエチレンを正極
活物質とする電池では放電々圧が低く、まだ放電々流の
増大に伴う電圧降下も大きい。これは、ポリトリフルオ
ロモノクロロエチレンは電導性がほとんどない′こと、
および高分子量物は粉末であるため、導電材との接触面
積が少ないことに起因していると考えられる。このため
高率放電時には電圧が低く、利用率も低いという欠点が
あった。Among these, batteries with excellent battery characteristics, such as a high open circuit voltage and a flat discharge curve, are:
A non-aqueous battery using polytetrafluoroethylene or haphorytrifluoromonochloroethylene as a positive electrode active material is known (Japanese Patent Publication No. 4245/1983). but,
Batteries that use high-molecular-weight polytrifluoromonochloroethylene as the positive electrode active material have a low discharge voltage, and the voltage drop associated with an increase in discharge current is still large. This is because polytrifluoromonochloroethylene has almost no electrical conductivity.
This is thought to be due to the fact that since the high molecular weight material is a powder, the contact area with the conductive material is small. For this reason, there was a drawback that the voltage was low during high rate discharge and the utilization rate was also low.

〔発明の目的〕[Purpose of the invention]

本発明の目的は、放電特性、特に放電電圧お平担性、エ
ネルギ密度に優れた非水′電池を提供することにある。An object of the present invention is to provide a non-aqueous battery with excellent discharge characteristics, particularly discharge voltage flatness and energy density.

〔発明の概要〕[Summary of the invention]

本発明はアルカリ金属を活物質とする負極と、非水溶媒
からなる電解液とを具備した非水電池において正極の活
物質としてポリトリフルオロモノ平雰 クロロエチレンのうち　予電が９００〜１３００の低重
△ 合物を用いることを特徴とするものである。The present invention provides a non-aqueous battery comprising a negative electrode made of an alkali metal as an active material and an electrolytic solution made of a non-aqueous solvent. It is characterized by using a low-density compound.

即ち、本発明においてシよ、平均分子量が９００〜１３
００のポリトリフルオロモノクロロエチレンを導電材、
結着材とともに混合、成形した正極を用いる。That is, in the present invention, the average molecular weight is 900 to 13
00 polytrifluoromonochloroethylene as a conductive material,
A positive electrode mixed with a binder and molded is used.

本発明に用いる負極活物質としては、例えば、リチウム
、ナトリウム等のアルカリ金属があげられる。Examples of the negative electrode active material used in the present invention include alkali metals such as lithium and sodium.

また、電解液としては、例えば、プロピレンカーボネー
ト、ｒ−ブチロラクトン、ジメトキシエタン等の有機溶
媒に過塩素酸リチウム、ホウフッ化リチウム等の電解質
を溶解してなる溶液が用いられる。Further, as the electrolytic solution, for example, a solution obtained by dissolving an electrolyte such as lithium perchlorate or lithium fluoroborate in an organic solvent such as propylene carbonate, r-butyrolactone, or dimethoxyethane is used.

〔発明の実施例〕[Embodiments of the invention]

以下本発明を図面を用いて詳述する。 The present invention will be explained in detail below using the drawings.

まず正極の活物質として平均分子量が９００−である低
重合度のポリトリフルオロモノクロロエチレ７を５９重
量％、導電材としてのアセチレンブラック４０ｉｉ％及
び結着材としてのポリテトラフルオロエチレン粉末１０
ｊ［ｔ％を混”今後シート化し正極１を造った。First, 59% by weight of polytrifluoromonochloroethylene 7 with a low degree of polymerization and an average molecular weight of 900- as the active material of the positive electrode, 40ii% of acetylene black as a conductive material, and 10% of polytetrafluoroethylene powder as a binder.
J[t%] was then mixed into a sheet to produce positive electrode 1.

次いで、第１図に示したようにポリプロピレン製電池容
器２内に、ステンレス類の正極集電体３；上記方法で得
た正極１；プロピレンカーボネート、１．２−ジメトキ
シエタンの容積比１：１の混合溶媒に１Ｍ過塩素酸リチ
ウムを溶解した溶液を含浸保持させたセパレータ４；金
属リチウム板よりなる負極５；ステンレス類の負極集電
体６；を順次収容し、最後に容器２の開口部に蓋７を螺
嵌して密封状態として非水電池を組立てた。これを電池
Ａとした。Next, as shown in FIG. 1, a stainless steel cathode current collector 3; a cathode 1 obtained by the above method; propylene carbonate and 1,2-dimethoxyethane in a volume ratio of 1:1 were placed in a polypropylene battery container 2. A separator 4 impregnated with a solution of 1M lithium perchlorate dissolved in a mixed solvent of A non-aqueous battery was assembled in a sealed state by screwing the lid 7 on. This was called battery A.

更に、正極活物質として平均分子−ｉ　１３００のポリ
トリフルオロモノクロロエチレンを用いたことを除いて
は、前記と同様の非水電池を組立て、これを電池Ｂとし
た。比較のだめ、正極活物質として平均分子’Ａ１７０
０のポリトリフルオロモノクロロエチレン、および平均
分子量が１３００を越えた高分子量の粉末のポリトリフ
ルオロモノクロロエチレンを用いたことを除いては、前
記と同様の非水電池を組立てと、れらをそれぞれ電池Ｃ
，Ｄとした。Furthermore, a non-aqueous battery similar to that described above was assembled, and this was designated as battery B, except that polytrifluoromonochloroethylene with an average molecular weight -i of 1300 was used as the positive electrode active material. For comparison, the average molecule 'A170 is used as the positive electrode active material.
0 polytrifluoromonochloroethylene and polytrifluoromonochloroethylene powder of high molecular weight with an average molecular weight exceeding 1300 were used. Battery C
, D.

以上の電池Ａ、Ｂ、Ｃ，Ｄについて放電々流２００μＡ
で定電流放電を行ない、この結果を第２図に示した。For the above batteries A, B, C, and D, the discharge current is 200 μA.
A constant current discharge was carried out, and the results are shown in FIG.

この結果第２図から明らかなように、本発明の非水電池
は比較例電池に比べ放電々圧が高く、また放電持続時間
も長いことが判明した。As a result, as is clear from FIG. 2, it was found that the non-aqueous battery of the present invention had a higher discharge pressure and a longer discharge duration than the comparative battery.

〔発明の効果〕〔Effect of the invention〕

以上の結果から明らかな如く本発明によれば平均分子量
が９００〜１３００のポリトリフルオロモノクロロエチ
レンからなる正極活物質を用いる事により′放電特性及
び利用率が大きく向上し、優れた非水電池が得られる。As is clear from the above results, according to the present invention, by using a positive electrode active material made of polytrifluoromonochloroethylene with an average molecular weight of 900 to 1300, the discharge characteristics and utilization rate are greatly improved, and an excellent non-aqueous battery is produced. can get.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明にかかる非水電池の一例を示した縦断面
図、第２図は電池Ａ、Ｂ、Ｃ，Ｄについての放電曲線マ
・・訪３６ １・・・正極　　　　　　２・・・電池容器３　・正極
集電体　　　４・・・セパレータ５・・・負極　　　　
　　６・・・負極集電体７・・・蓋FIG. 1 is a vertical cross-sectional view showing an example of a nonaqueous battery according to the present invention, and FIG. 2 is a discharge curve for batteries A, B, C, and D. Battery container 3 - Positive electrode current collector 4... Separator 5... Negative electrode
6... Negative electrode current collector 7... Lid

Claims (1)

【特許請求の範囲】[Claims] アルカリ金属を活物質とする負極と、非水溶媒からなる
電解液とを具備した非水電池において正極の活物質とし
て平均分子量９００〜１３００の低重合A low polymerization material with an average molecular weight of 900 to 1300 is used as the active material of the positive electrode in a non-aqueous battery comprising a negative electrode using an alkali metal as an active material and an electrolyte comprising a non-aqueous solvent.
JP57130232A 1982-07-28 1982-07-28 Nonaqueous battery Pending JPS5920968A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57130232A JPS5920968A (en) 1982-07-28 1982-07-28 Nonaqueous battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57130232A JPS5920968A (en) 1982-07-28 1982-07-28 Nonaqueous battery

Publications (1)

Publication Number Publication Date
JPS5920968A true JPS5920968A (en) 1984-02-02

Family

ID=15029261

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57130232A Pending JPS5920968A (en) 1982-07-28 1982-07-28 Nonaqueous battery

Country Status (1)

Country Link
JP (1) JPS5920968A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669556A (en) * 1994-07-06 1997-09-23 Exedy Corporation Nozzle for a welding torch having sputter build-up reducing configuration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5669556A (en) * 1994-07-06 1997-09-23 Exedy Corporation Nozzle for a welding torch having sputter build-up reducing configuration

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