JP2911898B2 - Battery manufacturing method - Google Patents

Battery manufacturing method

Info

Publication number
JP2911898B2
JP2911898B2 JP63057524A JP5752488A JP2911898B2 JP 2911898 B2 JP2911898 B2 JP 2911898B2 JP 63057524 A JP63057524 A JP 63057524A JP 5752488 A JP5752488 A JP 5752488A JP 2911898 B2 JP2911898 B2 JP 2911898B2
Authority
JP
Japan
Prior art keywords
battery
hole
metal terminal
terminal
synthetic resin
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 - Fee Related
Application number
JP63057524A
Other languages
Japanese (ja)
Other versions
JPH01232658A (en
Inventor
知也 村田
智久 野末
幸郎 遠藤
秀哲 名倉
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.)
FDK Corp
Original Assignee
FDK Corp
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 FDK Corp filed Critical FDK Corp
Priority to JP63057524A priority Critical patent/JP2911898B2/en
Publication of JPH01232658A publication Critical patent/JPH01232658A/en
Application granted granted Critical
Publication of JP2911898B2 publication Critical patent/JP2911898B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/565—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits involving interference fits, e.g. force-fits or press-fits
    • 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
    • H01M50/172—Arrangements of electric connectors penetrating the casing
    • 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
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B29C65/64—Joining a non-plastics element to a plastics element, e.g. by force
    • B29C65/645—Joining a non-plastics element to a plastics element, e.g. by force using friction or ultrasonic vibrations
    • 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
    • B29C66/47—Joining single elements to sheets, plates or other substantially flat surfaces
    • B29C66/474—Joining single elements to sheets, plates or other substantially flat surfaces said single elements being substantially non-flat
    • 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
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • 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
    • B29C66/303—Particular design of joint configurations the joint involving an anchoring effect
    • B29C66/3032—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined
    • B29C66/30321—Particular design of joint configurations the joint involving an anchoring effect making use of protrusions or cavities belonging to at least one of the parts to be joined making use of protrusions belonging to at least one of the parts to be joined
    • 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
    • B29C66/532—Joining single elements to the wall of tubular articles, hollow articles or bars
    • B29C66/5324—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length
    • B29C66/53245—Joining single elements to the wall of tubular articles, hollow articles or bars said single elements being substantially annular, i.e. of finite length said articles being hollow
    • 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
    • B29L2019/00—Buttons or semi-finished parts of buttons for haberdashery
    • 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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Sealing Battery Cases Or Jackets (AREA)
  • Connection Of Batteries Or Terminals (AREA)

Description

【発明の詳細な説明】 〈産業上の利用分野〉 この発明は、発電要素を収納した電池缶の開口部を、
端子貫通用の透孔が形成された合成樹脂製封口体にて封
口して構成される電池の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to an opening of a battery can containing a power generating element.
The present invention relates to a method for manufacturing a battery configured to be sealed with a synthetic resin sealing body having a through hole for terminal penetration.

〈従来の技術〉 Ni−Cd蓄電池や筒形非水電解液電池等の電池では、発
電要素を収納した電池缶の開口部を第３図（Ａ）あるい
は第３図（Ｂ）のような構造にて封口している。<Conventional technology> In a battery such as a Ni-Cd storage battery or a cylindrical non-aqueous electrolyte battery, the opening of a battery can housing a power generating element is structured as shown in FIG. 3 (A) or FIG. 3 (B). Sealed at.

即ち、第３図（Ａ）に示した例では、発電要素５を収
納した電池缶４の開口部に設けられた合成樹脂製の絶縁
ガスケット７をこの開口部と金属板製の端子板９との間
で挟持する構造を採っており、また端子板下側に密着し
て設けられた金属薄板製の封口板８に発電要素５を構成
する一方の電極から導出したリード端子10を接続して電
流の取出しを行っている。That is, in the example shown in FIG. 3A, the insulating gasket 7 made of synthetic resin provided in the opening of the battery can 4 containing the power generation element 5 is connected to the terminal plate 9 made of a metal plate. A lead terminal 10 derived from one electrode of the power generating element 5 is connected to a sealing plate 8 made of a thin metal plate provided in close contact with the lower side of the terminal plate. Extracting current.

また、第３図（Ｂ）の例のように、電池缶開口部と略
同じ径の合成樹脂製封口体11に形成した透孔11aにリベ
ット形状の金属端子12を設けた形式も知られている。こ
の形式では、この透孔11aに嵌入した金属端子12の電池
内面側の先端部にワッシャー13を挿入し、次いで端子を
上下から圧縮しつつその先端部をかしめてあるいはつぶ
して拡径させ、これによりワッシャー13をこの先端部に
固着すると同時に、金属端子12の頭部とワッシャー13と
で合成樹脂製封口体11の透孔部分を圧接して透孔12aを
封口する構造を採っている。Also, as shown in the example of FIG. 3 (B), a type in which a rivet-shaped metal terminal 12 is provided in a through hole 11a formed in a synthetic resin sealing body 11 having substantially the same diameter as the battery can opening is also known. I have. In this form, a washer 13 is inserted into the tip of the metal terminal 12 inserted into the through hole 11a on the inner side of the battery, and then the tip is crimped or crushed while compressing the terminal from above and below to expand the diameter. As a result, the washer 13 is fixed to this tip portion, and at the same time, the through-hole portion of the synthetic resin sealing body 11 is pressed against the head of the metal terminal 12 and the washer 13 to seal the through-hole 12a.

ところが、前者の形式のように電池缶開口部と端子板
とにより絶縁ガスケットを挟持する形式では、封口構造
が複雑で、その分組立ての工数がかかる他、部品精度、
具体的には端子板周縁部の形状の精度が重要で、この精
度が悪いと電池缶開口部をかしめた際にガスケット切れ
が起きたり、あるいはガスケットの締付けがあまくなっ
て電池缶開口部の封口不良が生じるといったトラブルの
原因となる等の欠点がある。However, in the case where the insulating gasket is sandwiched between the battery can opening and the terminal plate as in the former type, the sealing structure is complicated, and the assembling time is correspondingly increased.
Specifically, the accuracy of the shape of the peripheral edge of the terminal plate is important. If this accuracy is poor, the gasket will break when the battery can opening is swaged, or the gasket will be tightened too tightly to seal the battery can opening. There are drawbacks such as causing troubles such as defects.

〈発明が解決しようとする課題〉 その点、後者の形式では、部品精度に起因するこの種
のトラブルがなくて都合が良い。<Problems to be Solved by the Invention> In this regard, the latter type is advantageous because there is no such trouble due to the accuracy of the parts.

しかしながらこの形式では、組立て時に金属端子を圧
縮すると共にその先端を広げなければならず、このため
組立て時の工程の管理が繁雑化する等の問題がある。ま
た、金属端子先端のみによりワッシャーを固定している
ため、上下方向の締めがあまくなり易く、この部分にお
ける封口性は必ずしも十分でなく、これが漏液につなが
るという問題もある。However, in this type, it is necessary to compress the metal terminal at the time of assembling and to widen the tip thereof, so that there is a problem that management of the process at the time of assembling becomes complicated. In addition, since the washer is fixed only by the tip of the metal terminal, the tightening in the vertical direction is likely to be unsatisfactory, and the sealing property at this portion is not always sufficient, and there is a problem that this leads to liquid leakage.

〈課題を解決するための手段〉 以上の問題に鑑み、この発明に係る電池の製造方法
は、発電要素を収納した電池缶の開口部を、端子貫通用
の透孔が形成された合成樹脂製封口体にて封口した電池
において、外径が前記透光の内径より大きくまた外周に
環状溝を有する金属製端子の表面にプライマー処理を施
し、この金属製端子に超音波振動を加えながら前記透孔
に圧入することを要旨とする。<Means for Solving the Problems> In view of the above problems, a method for manufacturing a battery according to the present invention provides a method for manufacturing a battery can, in which an opening of a battery can containing a power generation element is made of a synthetic resin having a through hole for terminal penetration. In a battery sealed with a sealing body, a surface of a metal terminal having an outer diameter larger than the inner diameter of the light transmission and having an annular groove on the outer periphery is subjected to a primer treatment, and the metal terminal is subjected to the ultrasonic vibration while applying ultrasonic vibration. The gist is to press fit into the hole.

本願で金属端子を合成樹脂製封口板に上記のように圧
入する際の超音波振動の周波数は高いほどこの圧入がう
まく行き、15〜40KHz程度が適当である。In the present application, the higher the frequency of the ultrasonic vibration when the metal terminal is press-fitted into the synthetic resin sealing plate as described above, the better this press-fitting is performed, and about 15 to 40 KHz is appropriate.

また、このように超音波圧入する場合、基材たる合成
樹脂製封口体の厚さは特に制限はないが、あまりに薄い
とうまく行かず、その厚さが2mm以上のものを用いるの
が適当である。これ以下では圧入自体はうまくできても
圧入後の合成樹脂製封口体と金属製端子との密着性が悪
く、電池の封口性能上好ましくない。In addition, when the ultrasonic press-fitting is performed in this manner, the thickness of the synthetic resin sealing body as the base material is not particularly limited, but it does not work well if it is too thin, and it is appropriate to use one having a thickness of 2 mm or more. is there. Below this, although the press-fitting itself can be performed well, the adhesion between the synthetic resin sealing body and the metal terminal after the press-fitting is poor, which is not preferable in terms of battery sealing performance.

一方、金属製端子の材料としては、例えばリチウム電
池ではステンレスやチタン等の金属、またアルカリ電池
ではニッケル、ステンレス、真鍮等の金属が挙げられ
る。On the other hand, examples of the material of the metal terminal include metals such as stainless steel and titanium for lithium batteries, and metals such as nickel, stainless steel and brass for alkaline batteries.

また、合成樹脂製封口体の材料としては、ナイロン等
のポリアミド系樹脂、PTFE等のフッ素系樹脂、塩化ビニ
ル等のビニル系樹脂、更にはPPS（ポリフェニレンサル
ファイド）樹脂等の合成樹脂が挙げられる。Examples of the material of the sealing body made of synthetic resin include polyamide resins such as nylon, fluorine resins such as PTFE, vinyl resins such as vinyl chloride, and synthetic resins such as PPS (polyphenylene sulfide) resin.

更に、プライマー処理の具体例としては、塩素化ポリ
プロピレン等のような上記金属ともまた上記合成樹脂と
も密着性の良い材料を、金属製端子外周や封口体の透孔
などに塗布し、あるいはこれらの間に介在させておく方
法が挙げられる。Further, as a specific example of the primer treatment, a material having good adhesion to the above-mentioned metal such as chlorinated polypropylene or the above-mentioned synthetic resin is applied to the outer periphery of a metal terminal or a through-hole of a sealing body, or the like. There is a method of intervening between them.

〈作 用〉 本願のように封口体透孔に端子を超音波圧入する方法
を用いた場合、封口体を構成する透孔周辺の合成樹脂が
溶融すると同時に端子がこの透孔に圧入され、また端子
外面の溝に樹脂が旨く入り込み、結果として端子を透孔
に隙間なく密着させて設けることができる。<Operation> When using a method of ultrasonically press-fitting a terminal into a sealing body through-hole as in the present application, the terminal is pressed into the through-hole simultaneously with melting of the synthetic resin around the through-hole forming the sealing body. The resin can enter the groove on the outer surface of the terminal well, and as a result, the terminal can be provided in close contact with the through hole without any gap.

このため、本願の方法を採ることで、部品精度に起因
するトラブルや工程管理の繁雑化等を招くことなく、高
い封口性を有する電池を、簡単な作業で容易に製造する
ことができる。For this reason, by employing the method of the present application, a battery having a high sealing property can be easily manufactured by a simple operation without causing troubles due to component accuracy and complicated process management.

〈実施例〉 以下にこの発明の実施例を説明する。<Example> An example of the present invention will be described below.

第１図（Ａ），（Ｂ）において、厚さ2.5mmのポリプ
ロピレンで作った合成樹脂性封口体１の中央部には内径
Ｄが1.5mmの透孔1aが形成されている。1 (A) and 1 (B), a synthetic resin sealing body 1 made of polypropylene having a thickness of 2.5 mm is provided with a through hole 1a having an inner diameter D of 1.5 mm at the center.

一方、ステンレスからできた金属製端子２は図中上側
に4mmの頭部2aを有している。この頭部下側の外周には
独立した環状の溝2bが適当な間隔で略平行に多数形成さ
れている。このような溝2bに代えて螺旋状の溝を形成し
ても良いが、独立した環状の溝の方が好ましい。螺旋状
溝の場合、完成電池の高温貯蔵時等において電池内部の
電解液が漏れ出る度合いがどうしても高くなりがちとな
るからである。更に、これらの溝２は各々、隣接する溝
間の端子外周面がそれぞれ漸次テーパ状になるような形
状で形成されている。On the other hand, the metal terminal 2 made of stainless steel has a head 2a of 4 mm on the upper side in the figure. A large number of independent annular grooves 2b are formed substantially parallel to each other at appropriate intervals on the outer periphery of the lower part of the head. A spiral groove may be formed instead of such a groove 2b, but an independent annular groove is preferred. This is because in the case of a spiral groove, the degree of leakage of the electrolytic solution inside the battery tends to increase when the completed battery is stored at a high temperature or the like. Further, each of these grooves 2 is formed in such a shape that the terminal outer peripheral surface between the adjacent grooves is gradually tapered.

またこの透孔1aの金属製端子圧入前の内径Ｄは、金属
製端子２の頭部2aを除く外周径d1と溝2bにおける外周径
d2との間の適当な径に予め規定されている。The inner diameter D of the through-hole 1a before press fitting of the metal terminal is the outer diameter d1 excluding the head 2a of the metal terminal 2 and the outer diameter of the groove 2b.
It is specified in advance to an appropriate diameter between d2 and d2.

そして、第１図（Ａ）のように、合成樹脂製封口体１
の透孔1a上に金属製端子２をその頭部2aを反対側にむけ
て位置させ、またこの金属製端子２の頭部側に超音波ホ
ーン３を位置させ、この状態で超音波ホーン３により金
属製端子２に20KHzの超音波振動を加えつつこの金属製
端子２を透孔1aに圧入して、第１図（Ｂ）に示した通り
の合成樹脂製封口体１と金属製端子２との一体物を得
た。Then, as shown in FIG.
The metal terminal 2 is positioned on the through hole 1a with the head 2a facing the opposite side, and the ultrasonic horn 3 is positioned on the head side of the metal terminal 2, and in this state, the ultrasonic horn 3 The metal terminal 2 is press-fitted into the through-hole 1a while applying ultrasonic vibration of 20 KHz to the metal terminal 2 so that the synthetic resin sealing body 1 and the metal terminal 2 as shown in FIG. I got one thing.

そして、第２図のように、発電要素５を収納した電池
缶４の開口部に、上記で得た一体物を位置させ、また、
発電要素５を構成する一方の電極から導出したリード端
子６をこの一体物の中央下面に突出した金属製端子２の
端部に電気的に接続し、次いでこの開口部を絞りまたか
しめる等して、CR2/3 6形の電池（電池）を作製し
た。尚、この電池では、プロピレンカーボネイトとジ
メトキシエタンとの混合溶媒を電解液溶媒とする非水電
解液を用いた。Then, as shown in FIG. 2, the integrated body obtained above is positioned at the opening of the battery can 4 containing the power generating element 5, and
A lead terminal 6 derived from one of the electrodes constituting the power generating element 5 is electrically connected to an end of the metal terminal 2 protruding from the central lower surface of the integrated body, and then the opening is squeezed or caulked. Thus, a CR2 / 36 type battery (battery) was manufactured. In this battery, a non-aqueous electrolyte using a mixed solvent of propylene carbonate and dimethoxyethane as an electrolyte solvent was used.

また、金属端子を合成樹脂製封口体に圧入する際に塩
素化ポリプロピレンによるプライマー処理を施した他は
同様にして、本発明の電池（電池）を作った。Further, a battery (battery) of the present invention was produced in the same manner except that the metal terminal was subjected to a chlorinated polypropylene primer treatment when pressed into the synthetic resin sealing body.

更に、電池缶開口部の封口構造を、第３図（Ａ）の構
成とした他は電池と同様な電池（電池）、同じく封
口構造を第３図（Ｂ）とした他は電池と同じ電池（電
池）を、それぞれ作製した。Further, a battery (battery) similar to the battery except that the sealing structure of the opening of the battery can was configured as shown in FIG. 3 (A), and a battery similar to the battery except that the sealing structure was similarly changed to FIG. 3 (B) (Batteries) were produced.

そして、これらの電池を、温度60℃で保存した時の電
池の重量減少量（つまり電池内の電解液の減少量）の経
日変化を測定した。結果は第４図の通りで、本発明の電
池は、従来の電池，に比べて重量の減少量が著し
く小さく、本発明の効果は明らかである。Then, when these batteries were stored at a temperature of 60 ° C., the daily change of the weight loss of the batteries (that is, the reduction of the electrolytic solution in the batteries) was measured. The results are as shown in FIG. 4. The battery of the present invention has a significantly smaller weight loss than the conventional battery, and the effect of the present invention is clear.

〈発明の効果〉 以上のようにこの発明によれば、外径が透孔の内径よ
り大きくまた外周に環状溝を有する金属製端子の表面に
プライマー処理を施し、この金属製端子に超音波振動を
加えながら透孔に圧入するようにして構成したので、プ
ライマー処理と超音波圧入の相乗効果によって、透孔周
辺の合成樹脂製封口体が溶融し、金属製端子の環状溝に
入り込むことから、高い封口性を有する電池を容易に作
製することができるという効果を奏する。<Effect of the Invention> As described above, according to the present invention, the surface of a metal terminal having an outer diameter larger than the inner diameter of the through hole and having an annular groove on the outer periphery is subjected to primer treatment, and the metal terminal is subjected to ultrasonic vibration. Since it was configured to be press-fitted into the through-hole while adding, the synthetic resin sealing body around the through-hole is melted by the synergistic effect of the primer treatment and ultrasonic press-fitting, and enters the annular groove of the metal terminal, There is an effect that a battery having a high sealing property can be easily manufactured.

【図面の簡単な説明】[Brief description of the drawings]

第１図（Ａ）は合成樹脂製封口体に金属製端子を超音波
圧入する工程の説明図、第１図（Ｂ）はこの超音波圧入
により得られた一体物の断面図、第２図は実施例の電池
の説明図、第３図（Ａ），（Ｂ）はそれぞれ従来の電池
の説明図、第４図は実施例の電池などにおける重量減少
量の測定結果を示したグラフである。 1,11……合成樹脂製封口体、2,12……金属製端子、４…
…電池缶、５……発電要素。FIG. 1 (A) is an explanatory view of a step of ultrasonically press-fitting a metal terminal into a synthetic resin sealing body, FIG. 1 (B) is a cross-sectional view of an integrated body obtained by this ultrasonic press-fit, and FIG. Is an explanatory view of the battery of the embodiment, FIGS. 3 (A) and (B) are explanatory views of the conventional battery, respectively, and FIG. 4 is a graph showing the measurement results of the weight loss in the battery and the like of the embodiment. . 1,11… Synthetic resin sealing body, 2,12… Metal terminal, 4…
... battery cans, 5 ... power generation elements.

フロントページの続き (72)発明者 遠藤 幸郎 東京都港区新橋５丁目36番11号 富士電 気化学株式会社内 (72)発明者 名倉 秀哲 東京都港区新橋５丁目36番11号 富士電 気化学株式会社内 (56)参考文献 特開 昭53−63532（ＪＰ，Ａ) 特開 昭62−271342（ＪＰ，Ａ) 実開 昭59−41863（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) H01M 2/06,2/30 Continued on the front page. (72) Inventor Yukio Endo 5-36-11 Shimbashi, Minato-ku, Tokyo Inside Fuji Electric Chemical Co., Ltd. (72) Inventor Hidenori Nakura 5-36-11 Shimbashi, Minato-ku, Tokyo Fuji Electric In Chemical Co., Ltd. (56) References JP-A-53-63532 (JP, A) JP-A-62-271342 (JP, A) Japanese Utility Model Application Sho-59-41863 (JP, U) (58) Fields investigated (Int .Cl. 6 , DB name) H01M 2 / 06,2 / 30

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】発電要素を収納した電池缶の開口部を、端
子貫通用の透孔が形成された合成樹脂製封口体にて封口
した電池において、 外径が前記透孔の内径より大きくまた外周に環状溝を有
する金属製端子の表面にプライマー処理を施し、この金
属製端子に超音波振動を加えながら前記透孔に圧入する
ことを特徴とする電池の製造方法。1. A battery in which an opening of a battery can accommodating a power generating element is sealed with a synthetic resin sealing body having a through hole for terminal penetration, wherein the outer diameter is larger than the inner diameter of the through hole. A method for producing a battery, comprising: performing a primer treatment on a surface of a metal terminal having an annular groove on an outer periphery thereof; and press-fitting the metal terminal into the through hole while applying ultrasonic vibration.
JP63057524A 1988-03-11 1988-03-11 Battery manufacturing method Expired - Fee Related JP2911898B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63057524A JP2911898B2 (en) 1988-03-11 1988-03-11 Battery manufacturing method

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Application Number Priority Date Filing Date Title
JP63057524A JP2911898B2 (en) 1988-03-11 1988-03-11 Battery manufacturing method

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JPH01232658A JPH01232658A (en) 1989-09-18
JP2911898B2 true JP2911898B2 (en) 1999-06-23

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005276885A (en) 2004-03-23 2005-10-06 Sanyo Electric Co Ltd Electric double layer capacitor, electrolyte battery and manufacturing method of them
KR100670431B1 (en) * 2005-03-09 2007-01-16 삼성에스디아이 주식회사 Li Secondary Battery
JP2009080975A (en) * 2007-09-25 2009-04-16 Toshiba Corp Manufacturing method of battery

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5363532A (en) * 1976-11-18 1978-06-07 Toshiba Ray O Vac Method of manufacturing alkaline battery
JPS5833644Y2 (en) * 1977-12-06 1983-07-27 三洋電機株式会社 battery
JPS5941863U (en) * 1982-09-02 1984-03-17 日立マクセル株式会社 sealed battery

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