JPS5942768A - 密閉形電池の製法 - Google Patents

密閉形電池の製法

Info

Publication number
JPS5942768A
JPS5942768A JP57151761A JP15176182A JPS5942768A JP S5942768 A JPS5942768 A JP S5942768A JP 57151761 A JP57151761 A JP 57151761A JP 15176182 A JP15176182 A JP 15176182A JP S5942768 A JPS5942768 A JP S5942768A
Authority
JP
Japan
Prior art keywords
laser beam
battery
sealed
battery container
container
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
JP57151761A
Other languages
English (en)
Inventor
Kiyoshi Watanabe
渡邊　清
Seiichi Matsushima
松島　精一
Yoshio Uetani
植谷　慶雄
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.)
Maxell Ltd
Original Assignee
Hitachi Maxell 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 Hitachi Maxell Ltd filed Critical Hitachi Maxell Ltd
Priority to JP57151761A priority Critical patent/JPS5942768A/ja
Publication of JPS5942768A publication Critical patent/JPS5942768A/ja
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1687—Laser beams making use of light guides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
    • B29C65/16—Laser beams
    • B29C65/1629—Laser beams characterised by the way of heating the interface
    • B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
    • B29C65/1667—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
    • B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
    • B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
    • B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
    • 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
    • H01M50/147—Lids or covers
    • H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
    • H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/712—Containers; Packaging elements or accessories, Packages
    • B29L2031/7146—Battery-cases
    • 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

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Health & Medical Sciences (AREA)
  • Electromagnetism (AREA)
  • Toxicology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

Description

【発明の詳細な説明】 本発明は、例えばリチウム電池などの密閉形電池に係り
、特に′電池容器と’ｊｌｉ’、池薔の周辺接合部にレ
ーザビームを照射して牌接する密閉形′ｒに池の製法に
関するものである。
第１図は、従来の密閉形１１ｆｆ、池の１Ｕ４１法を説
明するための図である。
ステンレス製の電池容器１内には、二酸化マンガンを主
成分とする陽極合剤２．セパレータ３゜金（弓リチウム
からなる陰極４ならびに有機液体からなる電解液などの
発電要素が装填されている。
電池容器１の開口部はステンレス製の電池蓋５で封口さ
れるが、この電池蓋５の中央部にはガラス層６を介して
集電体７が取付けられている。
′電池蓋５を電１池容器１の開口端にφｙセたのち、そ
れらの周辺層合部８の一点にレーザビーム９を集光し、
レーザビーム９側を周辺接合部８の形状に沿って移動さ
せるか、あるいは重油の力を回転して、同辺接合部８を
順次溶接することにより全周を耐重していた。
ところがこの従来の対重方法では周辺接合部８を順次溶
接するから、先に溶けて電池容器１と電池蓋５が一体に
なった部分が冷支ると収縮するために歪が生じ、はなは
だしいときには今から１６接しようとする接合部８が互
に離れて溶→ザできない部分が生じて、密閉封口がなさ
れなくなる。このようなことが起こｈ　ｔｉいようにす
るためには、外力により電池蓋５を電池容器ｌ１１１１
１に押し付けておくか、あるいは′ｌｆＣ池容器１と′
ｊ’、Ｔ、　ｆ（ＩＩτ）：１５の周辺接合部８を数個
所にわたって予めスポット溶済などで仮止めしておく必
要があり、そのために作業が煩雑になる。
また、周辺接合部８を順次癖接する５ちに溶接エネルギ
ーにより電池容器１の内ｆ￥１翫が加熱され、特に有機
液体からなる揮発性の？ｌｆ、　ｌ昨液の場合に（・１
その一部が容易に蒸気となって１ｉｊｉ散し、電解液の
不足に基因する放′亀性能のイ１（下をきたす。さらに
、周辺ヂ合部８の溶接が進むにつれて電解液の蒸発景が
多（ｊｃり電池内圧が上昇する訳であるが、周辺接合部
８の最後の溶暗部分では桟気が逃げ場を失い、まだ高温
状態にあって固まっていない接合部８から前記蒸気が外
部へ噴出する。そのために接合部８に隙間が形成され、
気液密性が得られなくなり、放電性能の低下をきたすこ
とにｌ：ｃる。
本発明の目的はこのような従来技術の欠点を解消し、作
業性が曵く、気液密性の高い密閉形′ル池の製法を提供
するにある。
この目的を達成するため、本発明は、電池容器と電池蓋
の周辺接合部全体に同時にレーザビームが照射されるよ
うに前記周辺接合部の形状に相応してレーザビームを環
状に集光し、その集光レーザビームにより前記周辺接合
部全体を同時（で溶接したことを特徴とするものである
。
次に本発明の実施０］を第２図ないし第４図とともに説
明する。２ｇ２図および第３図は、第１実施例を説明す
るための図である。
従来と同様に、電池容器１には陽極合剤２．セパレータ
３　、　ｌｉ：９１試４ならびに電１弄液などの発電要
素が内項されており、電池容器１の開口部はガラス層６
を介して鳴電体７を数句けた′眠雁益５で封口されてい
る、。
電池容器１と電池棒５の周辺接合部８には、それの形状
（本実施例では円形）に相応してレーザビーム９を環状
（本実施例では円環状）に集光し、その集合したレーザ
ビーム９により前記周辺接合部８を同時に溶かして融着
するものである。なお、電池およびレーザビームは回転
する必要はない。
前述のようにレーザビーム９を円環状に集光するために
、第３図に示すようにレーザビーム９の光路中に中央部
が互に連結された円環状の凸レンズ１０が配置され、そ
のレンズ１（）姉よりレーザビーム９は周辺接合部８の
ところで丁度円環状に集光される。
第４図は、本発明の第２実ＩＩｆｌｉ　・例を説１明す
るための図である。この実施例の場合、レーザビーム９
の光路中に円錐状の反射４ｉｉ’ｆｔ、　１１と、１」
Ｈ〜゛を状の凹面集光境１２とがそれぞれ所定の位置関
係をもって配置されている。平行に入射されたレーザビ
ーム９が反射鏡１１ならびに集光で瞳１２で反射される
ことにより円環状に集光され、′電池容器１と電池ｉｓ
、　５０周辺接合部８に照射されて接合部８全木を同時
に溶接する。
本発明で用いられるレーザ装置としては、ＹＡＧレーザ
などの固体レーザ、あるいは炭酸ガスレーザなどの気体
レーザが好嫡である。
なお、第３図および第４図では、電池容器１に内装され
ている陽極合剤２．セパレータ３ならびに陰極４などは
省略しであるう 前記実施例ではレーザビームを円環状に集光した例を示
したが、電池容器と電池蓋の周辺接合部の形状が四角形
の場合にはそれに応じた形状にレーザビームを集光する
必要がある。なお実施例では扁平形電池について示した
が、本発明は筒形電池など他の形状の電池にも適用可能
である。
本発明はｍ５述のような構成になっており、電池容器と
電池蓋の周辺接合部をレーザビームで同時に溶接してし
まうから、従来のように歪発生によるトラブルならびに
電解液の揮散によるトラブルが解消され、電池容器と電
池蓋を予め仮止めしておくような必要もなく、また電池
あるいはレーザビームを回動する必要もない。従って作
柴性が良く、しかも気液密性の高い密閉形電池を製造す
ることができる。
【図面の簡単な説明】
第１図は従来の密閉形電池の栗法を説明するための断面
図、第２図は本発明の実施例に係る密閉形電池の製法を
説明するための断ｍｉ図、第３図忘よび第４図は本発明
に係るレーザビームの集光手段を示す説明図である。 １・・・・・・電池容器、２・・・・・・陽極合剤、３
・・・・・・セパレータ、４・・・・・・陰極、５・・
・・・パ電池蓋、８・・・・・・周辺接合部、９・・・
・・・レーザビーム、ＩＯ・・・・・・レンズ、１１・
・・・・・反射鏡、１２・・・・・・集光鏡。

Claims (1)

    【特許請求の範囲】
  1. 発電要素を内填した金属−！！ｉ：ｊ、　’ｉ、ｉ’ε
    池容器の開口↑ｔ１キを金属製電池蓋で封口し、市１池
    容器とｉ電池蓋の周辺接合部にレーザビームを照Ｊ１．
    ｉ　シて該接合部を溶接する密閉形電池の製法にす・５
    いて、Ｍｉｌ記′亀池容器と′電池蓋の周辺接合部全体
    に同時にレーザビームが照射されるように前記周辺接合
    部の形状にＡ［１応してレーザビームを環状１τ集光し
    、その集光レーザビームにより前記周辺接合部全体を同
    時に溶接したことを特徴とする密閉形電池の製法。
JP57151761A 1982-09-02 1982-09-02 密閉形電池の製法 Pending JPS5942768A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57151761A JPS5942768A (ja) 1982-09-02 1982-09-02 密閉形電池の製法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57151761A JPS5942768A (ja) 1982-09-02 1982-09-02 密閉形電池の製法

Publications (1)

Publication Number Publication Date
JPS5942768A true JPS5942768A (ja) 1984-03-09

Family

ID=15525714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57151761A Pending JPS5942768A (ja) 1982-09-02 1982-09-02 密閉形電池の製法

Country Status (1)

Country Link
JP (1) JPS5942768A (ja)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326783A (ja) * 1991-04-26 1992-11-16 Rohm Co Ltd 半導体レーザ装置用ステムの製造方法
US12297011B2 (en) * 2023-04-05 2025-05-13 Husky Injection Molding Systems Ltd. Method of securing a closure on a container
USD1116829S1 (en) 2023-06-13 2026-03-10 Husky Injection Molding Systems Ltd. Bottle cap

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04326783A (ja) * 1991-04-26 1992-11-16 Rohm Co Ltd 半導体レーザ装置用ステムの製造方法
US12297011B2 (en) * 2023-04-05 2025-05-13 Husky Injection Molding Systems Ltd. Method of securing a closure on a container
US12479630B2 (en) 2023-04-05 2025-11-25 Husky Injection Molding Systems Ltd. Closures with tamper evidence
US12570441B2 (en) 2023-04-05 2026-03-10 Husky Injection Molding Systems Ltd. Closures with tamper evidence
US12589917B2 (en) 2023-04-05 2026-03-31 Husky Injection Molding Systems Ltd. Closures with tamper evidence
US12606352B2 (en) 2023-04-05 2026-04-21 Husky Injection Molding Systems Ltd. Closures with tamper evidence
USD1116829S1 (en) 2023-06-13 2026-03-10 Husky Injection Molding Systems Ltd. Bottle cap

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