JPH0821371B2 - 密閉形鉛蓄電池の製造法 - Google Patents

密閉形鉛蓄電池の製造法

Info

Publication number
JPH0821371B2
JPH0821371B2 JP61029279A JP2927986A JPH0821371B2 JP H0821371 B2 JPH0821371 B2 JP H0821371B2 JP 61029279 A JP61029279 A JP 61029279A JP 2927986 A JP2927986 A JP 2927986A JP H0821371 B2 JPH0821371 B2 JP H0821371B2
Authority
JP
Japan
Prior art keywords
heat
sheet
shaped
pole
acid 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.)
Expired - Lifetime
Application number
JP61029279A
Other languages
English (en)
Other versions
JPS62188161A (ja
Inventor
喜一 小池
實 芳中
芳江 鈴木
伸夫 青柳
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.)
Dai Nippon Printing Co Ltd
Panasonic Holdings Corp
Original Assignee
Dai Nippon Printing Co Ltd
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 Dai Nippon Printing Co Ltd, Matsushita Electric Industrial Co Ltd filed Critical Dai Nippon Printing Co Ltd
Priority to JP61029279A priority Critical patent/JPH0821371B2/ja
Publication of JPS62188161A publication Critical patent/JPS62188161A/ja
Publication of JPH0821371B2 publication Critical patent/JPH0821371B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • 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
    • 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
    • B29C66/133—Fin-type joints, the parts to be joined being flexible
    • 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
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/433—Casing-in, i.e. enclosing an element between two sheets by an outlined seam
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8122—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the composition of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81431—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single cavity, e.g. a groove
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81457—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a block or layer of deformable material, e.g. sponge, foam, rubber
    • 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
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
    • B29L2031/3468—Batteries, accumulators or fuel cells
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/547—Terminals characterised by the disposition of the terminals on the cells
    • H01M50/55—Terminals characterised by the disposition of the terminals on the cells on the same side of the cell
    • 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
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/543—Terminals
    • H01M50/552—Terminals characterised by their shape
    • H01M50/553—Terminals adapted for prismatic, pouch or rectangular cells
    • 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)
  • Sealing Battery Cases Or Jackets (AREA)

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、密閉形鉛蓄電池の製造法に関するもので、
特にその極柱部の封止方法を改良したものである。
従来の技術 フィルム状またはシート状電そうで極板群を外装した
密閉形鉛蓄電池は、一般的に第２図に示すような構成で
ある。第２図において、12はフィルム状の電そう体で、
その内部に正極板８、負極板９およびセパレータ10より
なる極板群11を収納している。この電そうは酸素透過度
や透湿度が低く、引張強度等に優れ、極板群11に接する
内面には熱溶着性を有するポリオレフィン系フィルムを
配し、その外側にはポリプロピレンやポリエチレンテレ
フタレート、ポリ塩化ビニリデン等のフィルムを配して
ラミネートしたフィルムまたはシートからなる。13はシ
ート状鉛又は鉛合金からなる帯状板片の表面にはエポキ
シ系樹脂をコート後硬化させ、その上にポリオレフィン
系合成樹脂を被覆して極板群に溶接後、フィルム状電そ
うと熱熔着した極柱、14は過充電等により多量の酸水素
ガスが発生して電池内圧が上昇すると開弁して酸水素ガ
スを放出する排気弁である。
発明が解決しようとする問題点 このような従来の構成では極柱の樹脂部分とフィルム
状電そうとを熱溶着し密封するためには、極柱の形状に
見合った熱板を必要とし、また極性の位置や寸法も高い
精度のものが要求されるが、極柱用鉛合金の変形や、コ
ートしたエポキシ樹脂の破損を生じやすいため、信頼性
よく極柱部を封口する量産技術を確立することは困難で
あった。
本発明は、このような問題点を解決するもので、極柱
の変形や極柱上にコートしたエポキシ樹脂の破損を防止
し、電解液の浸透や気密不良がなく、量産性の高い極柱
部の熱溶着法の確立を目的とする。
問題点を解決するための手段 この問題点を解決するため、本発明は表面にシリコン
ゴムやテフロンゴムなどの柔軟性と耐熱性とを有するシ
ート状合成ゴムを貼り付けた熱板で、極柱をはさみ込ん
だフィルム状電そうをその外側から加熱，加圧して熱溶
着し、密閉するものである。
作用 この構成により、鉛合金接片でできた極柱部は柔軟性
の高いクッション材としての合成ゴムで押さえられて加
熱溶着されるので、極柱の変形や、電解液の浸透防止の
ためコートしたエポキシ被膜の破損も防止でき、信頼性
の高い液密性，気密性を得ることができる。
更に、熱板の形状は極柱の位置や形状に合わせて加工
する必要もなく、また，極柱と熱板の位置を高精度に設
定する必要がないので、簡単な設備で量産性の高い極柱
封口方法とすることができる。
実 施 例 以下、本発明の実施例について、第１図を参照して説
明する。図において、１は加熱用ヒータ２と耐熱性，柔
軟性を有し、熱伝導性にも優れたシリコンゴムやテフロ
ンゴム等の合成ゴムシート３が対向面に貼り付けられ、
加圧用のエアーシリンダー４によって可動する熱板、５
は熱板１によって熱溶着時に加熱，加圧され、排気弁６
を有するとともにシート状極柱７をはさみ込んだポリエ
チレン等よりなるフィルム状電そうである。
極柱部の熱溶着は、エアーシリンダー４によって熱板
１を矢印の方向へ動かし、フィルム状電そう５と極柱７
を一定時間加熱，加圧して封口する。
このような構成で、クッション材にシリコンゴムを使
用し、その厚さを種々変化させた時の熱溶着時間と極柱
の変形やコートしたエポキシ樹脂被覆の破壊および気密
性について、熱板の温度180℃、溶着圧力50Kg,電極寸法
幅5mm,厚さ1.0mmの条件で試験を行なった。
この結果は次表に示すように、0.5mm以下のシリンコ
ンゴムでは気密不良になるとともに、極性の変形やエポ
キシ被膜の破壊を伴う。逆にシリコンゴムの厚みが3.0m
m以上になると熱伝導が悪くなり、長い熱溶着時間を必
要とし作業性が低下する。このためシリコンゴムの厚さ
は極性の厚さと同等か又はそれ以上の1.0〜3.0mm、望ま
しくは1.0〜2.0mmが最適である。
このようにして決定した1.0mmのシリコンゴムを熱板
に貼り付けたものと、第３図に示すように熱板１の極性
対向部に浅い凹部１′を設けた溶着装置での溶着と比較
するため、各1000個の極柱部の封止を行なったところ、
従来の方法では気密不良や極柱の変形が16％発生したの
に対して、本実施例では０％であった。
なお、シリコンゴムの変わりに厚さ1.0mmのテフロン
ゴムを用いても同様な効果を得ることができた。
発明の効果 以上のように、本発明によれば極柱封口部を熱溶着す
る際に、熱板と極性をはさみ込んだフィルム状電そうと
の間に、耐熱性，柔軟性の優れたシリコンゴムやテフロ
ンゴムを挿入して加熱，加圧することで、極性の変形や
電解液の浸透を防止するエポシキ樹脂被膜を破壊するこ
となく熱溶着でき、また熱板と極柱の位置を高精度に決
める必要がないので、簡単な設備で、極めて量産性，信
頼性に優れた極柱封止部を得ることができる。
【図面の簡単な説明】
第１図は本発明の一実施例に用いた熱溶着装置の構成略
図、第２図は密閉形鉛蓄電池の斜視図、第３図は従来の
熱溶着装置の構成略図である。 １……熱板、２……加熱用ヒータ、３……合成ゴムシー
ト、５……フィルム状電そう、７……極柱。
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 芳江 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 青柳 伸夫 東京都新宿区市谷加賀町１丁目１番１号 大日本印刷株式会社内 (56)参考文献 特開 昭59−111255（ＪＰ，Ａ) 特開 昭52−66583（ＪＰ，Ａ) 特開 昭55−136460（ＪＰ，Ａ) 特公 昭61−4679（ＪＰ，Ｂ２) 特公 昭52−26270（ＪＰ，Ｂ２)

Claims (2)

    【特許請求の範囲】
  1. 【請求項１】正極板および負極板に、フィルム状または
    シート状合成樹脂体と熱溶着性のある樹脂で表面の一部
    を被覆したシート状の鉛又は鉛合金板片の一端を溶接し
    て極柱となし、この正極板、負極板とセパレータからな
    る極板群を、フィルム状またはシート状電そうで包み込
    んで密閉する密閉形鉛蓄電池の製造法であって、前記極
    柱とフィルム状又はシート状電そうとの熱溶着部には、
    柔軟性、耐熱性を有し極柱と同等以上の厚さのシート状
    合成ゴムを当て、その外側から熱板で加圧、加熱して前
    記電そうを極柱形状に沿って熱溶着することを特徴とし
    た密閉形鉛蓄電池の製造法。
  2. 【請求項２】柔軟性、耐熱性を有するシート状合成ゴム
    が、極柱の厚さと同等以上のシリコンゴムあるいはフッ
    素ゴムである特許請求の範囲第１項記載の密閉形鉛蓄電
    池の製造法。
JP61029279A 1986-02-13 1986-02-13 密閉形鉛蓄電池の製造法 Expired - Lifetime JPH0821371B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61029279A JPH0821371B2 (ja) 1986-02-13 1986-02-13 密閉形鉛蓄電池の製造法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61029279A JPH0821371B2 (ja) 1986-02-13 1986-02-13 密閉形鉛蓄電池の製造法

Publications (2)

Publication Number Publication Date
JPS62188161A JPS62188161A (ja) 1987-08-17
JPH0821371B2 true JPH0821371B2 (ja) 1996-03-04

Family

ID=12271828

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61029279A Expired - Lifetime JPH0821371B2 (ja) 1986-02-13 1986-02-13 密閉形鉛蓄電池の製造法

Country Status (1)

Country Link
JP (1) JPH0821371B2 (ja)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2734519B2 (ja) * 1988-03-24 1998-03-30 松下電器産業株式会社 偏平状組電池
JP4581167B2 (ja) * 2000-01-19 2010-11-17 ソニー株式会社 ポリマーバッテリー電極部のヒートシール方法およびヒートシール装置
EP1180480B1 (en) * 2000-01-26 2012-11-14 Dai Nippon Printing Co., Ltd. Heat-sealing method
JP2001266952A (ja) * 2000-03-23 2001-09-28 Sony Corp リチウムイオン電池およびその製造方法
JP2002337820A (ja) * 2001-05-11 2002-11-27 Fujimori Kogyo Co Ltd シール装置及びシール方法
KR100402747B1 (ko) * 2001-11-03 2003-10-17 삼성에스디아이 주식회사 전지용 파우치의 시일 방법 및, 시일용 장치
JP4373070B2 (ja) * 2002-10-24 2009-11-25 大日本印刷株式会社 二次電池およびその製造方法
JP4666131B2 (ja) * 2003-10-03 2011-04-06 日本電気株式会社 ラミネートフィルムの熱融着方法、フィルム外装電池の製造方法およびラミネートフィルム用熱融着装置
JP5644718B2 (ja) * 2011-08-24 2014-12-24 大日本印刷株式会社 ポリマー電池包装用シールヘッドを用いたシール方法
KR102779856B1 (ko) 2020-02-13 2025-03-12 주식회사 엘지에너지솔루션 이차전지 가압장치 및 가압방법
JP7324405B2 (ja) * 2020-02-17 2023-08-10 トヨタ自動車株式会社 ラミネート型電池の製造方法

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JPS5266583A (en) * 1975-12-01 1977-06-02 Akio Matsushita Method of adhesion of plastic sheets or laces by fusion
JPS59111255A (ja) * 1982-12-16 1984-06-27 Matsushita Electric Ind Co Ltd 鉛蓄電池の製造法
JPS614679A (ja) * 1984-06-14 1986-01-10 芝浦メカトロニクス株式会社 電動工具

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