JPS6220238A - Manufacture of organic electrolyte cell - Google Patents

Manufacture of organic electrolyte cell

Info

Publication number
JPS6220238A
JPS6220238A JP60160528A JP16052885A JPS6220238A JP S6220238 A JPS6220238 A JP S6220238A JP 60160528 A JP60160528 A JP 60160528A JP 16052885 A JP16052885 A JP 16052885A JP S6220238 A JPS6220238 A JP S6220238A
Authority
JP
Japan
Prior art keywords
positive electrode
insulating ring
electrolyte
electrode active
active material
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
JP60160528A
Other languages
Japanese (ja)
Inventor
Yasusaburo Yagyu
柳生　泰三郎
Yasuhiro Kashima
鹿島　康弘
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP60160528A priority Critical patent/JPS6220238A/en
Publication of JPS6220238A publication Critical patent/JPS6220238A/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
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/102—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure
    • H01M50/109—Primary casings, jackets or wrappings of a single cell or a single battery characterised by their shape or physical structure of button or coin shape
    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Abstract

PURPOSE:To prevent a leakage immediately after the manufacture process and a contamination produced in a sealing process, and omit a washing process, by incorporating an insulating ring in a positive electrode can to contain a positive electrode active substance and an electrolyte, in order to eliminate the gap between the ring and the can. CONSTITUTION:At the center of a positive electrode can 6 incorporated with an insulating ring 5, a formation of a positive electrode active sustance 4 is placed, over which a separator 3 consisting of a cap form with bottom of non woven fabric polypropylene is arranged. Moreover, an adequate amount of an electrolyte is poured in. Since the side of the positive electrode can 6 with the insulating ring 5 is incorporated with the insulating ring 5 through a sealing agent 7, the electrolyte will not rise through the inside surface. Therefore, any leakage immediately after the cell assembling, or contamination produced can be prevented, and a washing process can be omitted.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、フッ化炭素／リチウム電池、二酸化マンガン
／リチウム電池、カーボンリチウム二次電池、酸化銅／
リチウム電池等の電池で、特にＰＣ，ＤＭＥ、γ−ＢＬ
とホウフッ化リチウム等の有機電解質を使用し、負極活
物質として金属す２ヘー／゛ チウムを用いる有機電解質電池の製造法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is applicable to fluorocarbon/lithium batteries, manganese dioxide/lithium batteries, carbon lithium secondary batteries, copper oxide/lithium batteries,
Batteries such as lithium batteries, especially PC, DME, γ-BL
The present invention relates to a method for manufacturing an organic electrolyte battery using an organic electrolyte such as lithium fluoroborate and lithium fluoroborate, and a metal 2H/ditrium as a negative electrode active material.

従来の技術 これまでのリチウム電池は正極缶の内側にフ・・ノ化炭
素（ＯＦ）ｎと、アセチレンブラック、黒鉛等の電導剤
とを混練して成る正極活物質を挿入し、−力負極集電体
をかねる有底封口板の中に負極活物質としての金属リチ
ウムを挿入圧着し、封口板の外周辺部にポリプロピレン
樹脂でできた絶縁リングをはめ合わせ、ポリプロピレン
の不織布をセパレータとして介在し、ＰＣ，ＤＭＥ、γ
−ＢＬ等の有機溶媒とホウフッ化リチウムを電解質とし
て構成される電解液を注入して負極側を構成する。Conventional technology In conventional lithium batteries, a positive electrode active material made by kneading fluorinated carbon (OF) and a conductive agent such as acetylene black or graphite is inserted inside a positive electrode can, and a positive electrode active material is inserted into the positive electrode can. Metallic lithium as a negative electrode active material is inserted and crimped into a bottomed sealing plate that serves as a current collector, an insulating ring made of polypropylene resin is fitted around the outer periphery of the sealing plate, and a polypropylene nonwoven fabric is interposed as a separator. , PC, DME, γ
- An electrolytic solution composed of an organic solvent such as BL and lithium borofluoride as an electrolyte is injected to form the negative electrode side.

この負極側と前もって作っておいた正極側とをカップリ
ングし、正極缶の開口端部を内側方向に折り曲げて封口
中ることによって電池を作っていた。A battery was produced by coupling this negative electrode side to a previously prepared positive electrode side, bending the open end of the positive electrode can inward, and sealing the can.

発明が解決しようとする問題点 この従来の製造方式のように負極集電体を兼ねた封目板
の周辺に絶縁リングをはめあわせ、その後に正極缶に挿
入して構成する方式を取ると、挿入を容易にするために
正極缶の内径と絶縁リング３べ− の外径との間に０．３〜０．６ｍｍの間隙を設ける必要
がある。そのためカップリング時に発電要素の入った内
部より電解液が外側に漏れ出すことがあった。従ってこ
のままで正極缶の開口端部を内側に曲げて封口しても外
側に電解液が付着したｉｔとなり、外観不良となったり
、電池の品質として不具合い品となってし１っていた。Problems to be Solved by the Invention If this conventional manufacturing method is used, in which an insulating ring is fitted around a sealing plate that also serves as a negative electrode current collector, and then inserted into a positive electrode can, In order to facilitate insertion, it is necessary to provide a gap of 0.3 to 0.6 mm between the inner diameter of the positive electrode can and the outer diameter of the insulating ring 3 base. Therefore, during coupling, the electrolyte sometimes leaked out from the inside containing the power generation element. Therefore, even if the open end of the positive electrode can was bent inward and sealed, the electrolyte would still adhere to the outside, resulting in poor appearance and poor battery quality.

又、封口直後の漏出電解液やこの漏出した電解液による
汚れ、結晶物を取り除くだめに本来必要としない洗浄工
程を設けることが必要となり、多大な設備費用が必要と
なり工業的にはマイナス的な要因となっていた。In addition, it is necessary to install a cleaning process that is not originally necessary in order to remove the leaked electrolyte immediately after sealing, as well as the dirt and crystals caused by this leaked electrolyte, which requires a large amount of equipment cost, which is negative from an industrial perspective. This was a contributing factor.

本発明は、このような問題点を解決することをその目的
としたものである。The present invention aims to solve these problems.

問題点を解決するだめの手段 これらの問題点を解決するために本発明では、正極活物
質及び電解液の入る正極缶に直接ポリプロピレン樹脂か
らなる絶縁リングを一体成型して、両者間の間隙をなく
し、製造工程中での直後漏液や封口工程での汚れ発生を
防止し、更に洗浄工程をなくして、品質の安定化を図っ
たものである。Means to Solve the Problems In order to solve these problems, in the present invention, an insulating ring made of polypropylene resin is integrally molded directly onto the cathode can containing the cathode active material and the electrolyte to close the gap between the two. This eliminates liquid leakage immediately during the manufacturing process and prevents staining during the sealing process, and also eliminates the cleaning process to stabilize quality.

作用 この構成によって、正極缶に注入された電解液は正極缶
の壁面をったって外部に漏出することが々くなり、電池
組立直後漏液や汚染がなくなり、洗浄工程を不要とする
ことができる、。Effect: This structure prevents the electrolyte injected into the positive electrode can from often leaking to the outside along the wall of the positive electrode can, eliminating leakage and contamination immediately after battery assembly, and eliminating the need for a cleaning process. ,.

実施例 以下、本発明の実施例を図により詳述する。Example Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

第１図は本発明の一実施例によるリチウム電池の断面図
であり、第２図イは本発明の正極缶６の立上り部内壁内
面に絶縁リング５を一体成型した構成部品の断面図であ
り、同図口はその一部拡大断面図である。本発明はこの
絶縁リング５の正極缶６への一体化に係るもので、第３
図に示されるように、正極缶の立上り部内壁内面から内
底部の周辺にかけて、オレフィン系の樹脂、例えばアタ
クチックポリエチレンやスチレンブタジェンゴム。FIG. 1 is a cross-sectional view of a lithium battery according to an embodiment of the present invention, and FIG. The opening of the figure is a partially enlarged sectional view. The present invention relates to the integration of this insulating ring 5 into the positive electrode can 6.
As shown in the figure, an olefin resin such as atactic polyethylene or styrene-butadiene rubber is applied from the inner surface of the inner wall of the rising part of the positive electrode can to the periphery of the inner bottom.

ポリフロンデスバージョン等の封止剤７を有機溶剤に溶
解又は分散した液体を予め塗布し乾燥の後、第４図に示
すように成型金型Ｂ−Ａ、　Ｂ−Ｂ、５−Ｃ５べ−７ を用いてポリプロピレン樹脂を射出成型し絶縁リング５
を一体化せしめる。このようにして一体成型されたもの
は第２図口の拡大断面図のようになるこの絶縁リング６
を一体化した正極缶の中央部に、フッ化炭素（ＯＦ）ｎ
とアセチレンブラックとの混練物からなる正極活物質４
の成型体を位置させ、その上部に有底カップ状のポリプ
ロピレン不織布からなるセパレータ３を位置させ、更に
排水電解液としてＰＣ，ＤＭＩ！：、γ−ＢＬとホウフ
ッ化リチウムからなる電解質で構成される電解液を必要
量注液する。絶縁リング一体の正極缶６の側部は封止剤
７を介して絶縁リング５が一体化されているため、内側
部より電解液は上昇することはない。セパレータ３及び
電解液の入った絶縁リング一体正極缶６の上方部より、
予め負極活物質としてのリチウム金属２を圧着した負極
集電体を兼ねる封口板１をカップリングし、正極缶６の
開口上端部を内側に曲げ、密封して電池を構成する。A liquid prepared by dissolving or dispersing a sealing agent 7 such as Polyflon Desversion in an organic solvent is applied in advance, and after drying, the molding molds B-A, B-B, 5-C5 are molded as shown in FIG. Injection molding polypropylene resin using 7 and insulation ring 5
to integrate. The insulating ring 6 that is integrally molded in this way is shown in the enlarged sectional view of the opening in Figure 2.
In the center of the positive electrode can, fluorocarbon (OF) n
Positive electrode active material 4 consisting of a kneaded product of and acetylene black
A molded body of PC, DMI! : Inject the required amount of an electrolytic solution composed of an electrolyte consisting of γ-BL and lithium borofluoride. Since the insulating ring 5 is integrated with the side part of the positive electrode can 6 integrated with the insulating ring via the sealant 7, the electrolyte does not rise from the inside part. From the upper part of the separator 3 and the insulating ring-integrated positive electrode can 6 containing the electrolyte,
A sealing plate 1, which also serves as a negative electrode current collector, to which lithium metal 2 as a negative electrode active material has been pressure-bonded in advance is coupled, and the open upper end of the positive electrode can 6 is bent inward and sealed to form a battery.

前述した従来の電池人と、本発明の絶縁リングを一体し
た正極缶を使用した電池Ｂの直後漏液の６へ−７・ 比較をしてみると以下のようになった。A comparison of the above-mentioned conventional battery and battery B using the positive electrode can integrated with the insulating ring of the present invention immediately after leakage was as follows.

又、仕上検査時点の電池の不良率をみてみると発明の効
果 以上のように本発明では工程不良数、及び製品不良率に
おいて著しい改善効果がみられ、工業的７へ−７ 価値は大なるものがある。In addition, when looking at the defective rate of batteries at the time of final inspection, the present invention has a significant improvement effect on the number of process defects and the product defective rate, as shown above the effects of the invention. There is something.

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

第１図は本発明の一実施例によるリチウム電池の断面図
を示す図、第２図イは本発明の絶縁リングを一体した正
極缶の断面図、第２図口はその一部拡大断面図、第３図
は本発明の中間工程の正極缶の内周縁部に封止剤が塗布
されている状態を示す断面図、第４図は絶縁リングを一
体成形する成型状態を示す断面図である。 １・・・・・負極封目板、２・・・・負極活物質、３・
・・・セパレータ、４・・・・・・正極活物質、６・・
・・・絶縁リング、６・・・・・・正極缶。 代理人の氏名　弁理士　中　尾　敏　男　ほか１名層　
　　　　　　　　　ｇ −へ　　　　− 味　　　　　　　　　綜Figure 1 is a cross-sectional view of a lithium battery according to an embodiment of the present invention, Figure 2 A is a cross-sectional view of a positive electrode can incorporating an insulating ring of the present invention, and Figure 2 is a partially enlarged cross-sectional view. , FIG. 3 is a sectional view showing a state in which a sealant is applied to the inner peripheral edge of a positive electrode can in an intermediate step of the present invention, and FIG. 4 is a sectional view showing a state in which an insulating ring is integrally molded. . 1... Negative electrode sealing plate, 2... Negative electrode active material, 3...
... Separator, 4... Positive electrode active material, 6...
...Insulation ring, 6...Positive electrode can. Name of agent: Patent attorney Toshio Nakao and one other person
g - to - taste

Claims (1)

【特許請求の範囲】[Claims] （１）正極缶の立上り内壁内に封止剤を予め塗布乾燥し
、その後にポリプロピレン樹脂を正極缶内側に一体成型
して絶縁リングとした正極缶体を作製し、この正極缶体
内へ正極合剤を挿入し、ポリプロピレンからなる不織布
をセパレータとして介在し、セパレータ上に正極活物質
の対極として負極活物質を配し、有機電解質を注入後負
極の集電体をかねた有底封口板で封口したことを特徴と
した有機電解質電池の製造法。(1) A sealant is applied to the inner wall of the positive electrode can in advance and dried, and then a polypropylene resin is integrally molded inside the positive electrode can to create a positive electrode can with an insulating ring. A nonwoven fabric made of polypropylene is interposed as a separator, a negative electrode active material is placed on the separator as a counter electrode to the positive electrode active material, and after the organic electrolyte is injected, it is sealed with a bottomed sealing plate that also serves as a current collector for the negative electrode. A method for manufacturing an organic electrolyte battery characterized by the following.
JP60160528A 1985-07-19 1985-07-19 Manufacture of organic electrolyte cell Pending JPS6220238A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60160528A JPS6220238A (en) 1985-07-19 1985-07-19 Manufacture of organic electrolyte cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60160528A JPS6220238A (en) 1985-07-19 1985-07-19 Manufacture of organic electrolyte cell

Publications (1)

Publication Number Publication Date
JPS6220238A true JPS6220238A (en) 1987-01-28

Family

ID=15716912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60160528A Pending JPS6220238A (en) 1985-07-19 1985-07-19 Manufacture of organic electrolyte cell

Country Status (1)

Country Link
JP (1) JPS6220238A (en)

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