JPH06111802A - Positive electrode pin structure - Google Patents
Positive electrode pin structureInfo
- Publication number
- JPH06111802A JPH06111802A JP4256295A JP25629592A JPH06111802A JP H06111802 A JPH06111802 A JP H06111802A JP 4256295 A JP4256295 A JP 4256295A JP 25629592 A JP25629592 A JP 25629592A JP H06111802 A JPH06111802 A JP H06111802A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- electrode pin
- battery
- pin
- polymer insulator
- 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.)
- Granted
Links
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は密閉型電池に関し、特に
電池の正極ピンの構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed battery, and more particularly to the structure of a battery positive electrode pin.
【０００２】[0002]
【従来の技術】最近、リチウム電池やリチウムイオン電
池等の電池が携帯用電子機器等に広く利用されつつあ
る。ところで、かかる電池系は従来の電池系と異なり、
３Ｖ、４Ｖといった高い起電力を有するという特徴があ
り、その優れた性能が注目されてきている。2. Description of the Related Art Recently, batteries such as lithium batteries and lithium ion batteries are being widely used in portable electronic devices and the like. By the way, this battery system is different from the conventional battery system.
It has a characteristic of having a high electromotive force of 3 V and 4 V, and its excellent performance has been attracting attention.
【０００３】しかしながらかかる電池系に用いる正極端
子材料はその高い起電力の故に限定された金属材料しか
用いられなかった。かかる高電圧に耐える金属材料とし
ては、チタン、特殊なＳＵＳ、金、白金といった貴金
属、アルミニウム等、極く限られたものしかなかった。
特に、高い密閉性の要求されるハーメチックシール方式
の電池の場合、その正極ピン材料は融着ガラスの熱膨張
係数と近い値である必要性から更に限定され、チタン、
特殊なＳＵＳ材料しか用いることが出来なかった。However, the positive electrode terminal materials used in such battery systems have been limited to metallic materials because of their high electromotive force. As metal materials that can withstand such a high voltage, titanium, special SUS, precious metals such as gold and platinum, and aluminum have been very limited.
In particular, in the case of a hermetically sealed battery that is required to have high hermeticity, the positive electrode pin material is further limited from the necessity of having a value close to the thermal expansion coefficient of the fused glass, titanium,
Only a special SUS material could be used.
【０００４】チタン、特殊なＳＵＳ材料はいずれも高価
であるとともに、加工性、溶接性等に大きな難点があっ
た。Titanium and a special SUS material are both expensive and have great difficulties in workability and weldability.
【０００５】[0005]
【発明が解決しようとする課題】本発明はかかる従来の
問題点を解決せんとするものであり、特に、高電圧に耐
え安価で加工性の良いアルミニウム、もしくはアルミニ
ウム合金の特性に注目し、融着ガラスによらない絶縁方
式を考案することにより上記問題点のない新規な正極ピ
ン構造を提供せんとするものである。SUMMARY OF THE INVENTION The present invention is intended to solve the above-mentioned conventional problems, and in particular, pays attention to the characteristics of aluminum or aluminum alloy which can withstand high voltage and is inexpensive and has good workability. It is an object of the present invention to provide a novel positive electrode pin structure that does not have the above problems by devising an insulation method that does not rely on glassing.
【０００６】[0006]
【課題を解決するための手段】上記課題を解決するた
め、本発明はＡｌもしくはＡｌ合金からなる正極ピンで
あって、該正極ピンが高分子絶縁体を介して電池缶もし
くは電池蓋にカシメられていることを特徴とする電池用
正極ピン構造にすることにより、耐電圧性に優れたＡｌ
もしくはＡｌ合金を正極ピン材料として用いることが可
能となり、３Ｖ以上の起電力を有する電池の正極ピンと
して安価で有用な材料を提供できるようにしたものであ
る。In order to solve the above problems, the present invention is a positive electrode pin made of Al or an Al alloy, the positive electrode pin being caulked to a battery can or a battery lid through a polymer insulator. By having a positive electrode pin structure for a battery, which is characterized by
Alternatively, an Al alloy can be used as a positive electrode pin material, and an inexpensive and useful material can be provided as a positive electrode pin of a battery having an electromotive force of 3 V or more.
【０００７】[0007]
【作用】本発明で用いる正極ピンはＡｌもしくはＡｌ合
金でなければならない。The positive electrode pin used in the present invention must be made of Al or Al alloy.
【０００８】上記の如く高起電力に耐える金属材料は、
極く限定されたものであり価格、加工性を含めて考えた
場合、ＡｌもしくはＡｌ合金が最適の材料である。As described above, the metal material that can withstand high electromotive force is
Al or Al alloy is the most suitable material in view of price and workability because it is extremely limited.
【０００９】ＡｌもしくはＡｌ合金を正極ピンとして用
いるためには負極端子となる電池缶もしくは電池蓋と電
気的に絶縁されていなければならない。In order to use Al or an Al alloy as a positive electrode pin, it must be electrically insulated from the battery can or battery lid that serves as the negative electrode terminal.
【００１０】かかる絶縁の方法として最も一般的なのは
例えば、特開昭６１−２４８，３５６号公報，特開昭６
１−２６１，２４０号公報，特開昭６３−７６，９５６
号公報等にて開示されている前記のハーメチックシール
方式であるが、ＡｌもしくはＡｌ合金は融着ガラスとの
熱膨張係数との差が余りに大きく、この方式を採用した
場合にはその製造工程中にヒビ割れが発生し完全な製品
を得ることができない。The most general method of such insulation is disclosed in, for example, Japanese Patent Laid-Open Nos. 61-248,356 and 6-SHO.
1-261,240, JP-A-63-76,956
Although the above-mentioned hermetic sealing method is disclosed in Japanese Patent Publication No. JP-A-2003-242, the difference between the thermal expansion coefficient of Al or Al alloy and that of the fused glass is too large, and when this method is adopted, during the manufacturing process thereof. A perfect product cannot be obtained due to cracking.
【００１１】事実、本発明者等はＡｌもしくはＡｌ合金
をピン材として種々の条件にてガラスとの融着を試みた
が満足な製品を得ることができなかった。In fact, the present inventors tried fusion with glass under various conditions using Al or Al alloy as a pin material, but could not obtain a satisfactory product.
【００１２】本発明者等は更にガラス絶縁に代え、高分
子絶縁体による絶縁を種々の金属について検討を行った
結果、意外にもＡｌもしくはＡｌ合金からなるピンを高
分子絶縁体を介して電池缶もしくは電池蓋にカシメるこ
とにより、電気絶縁性に優れ気密性にも優れたピンを得
ることができることを見出した。The inventors of the present invention have further studied the insulation with a polymer insulator in place of glass insulation for various metals. As a result, surprisingly, a pin made of Al or Al alloy is used for a battery via a polymer insulator. It has been found that by crimping the can or the battery lid, a pin having excellent electric insulation and airtightness can be obtained.
【００１３】以下、図面を参照して具体的に説明すると
図１は本発明の一つの実施態様を示すものであり、１は
ＡｌもしくはＡｌ合金よりなるピンである。２は高分子
絶縁体からなるガスケットであり、その材料は特に限定
されるものではないが、ポリエチレン、ポリプロピレ
ン、ポリテトラフロロエチレン、ポリフェニレンサルフ
ァイト、スチレンブタジエンゴム等の高分子絶縁体が一
例として挙げられる。FIG. 1 shows one embodiment of the present invention, which will be described in detail below with reference to the drawings. 1 is a pin made of Al or an Al alloy. Reference numeral 2 is a gasket made of a polymer insulator, and its material is not particularly limited, but polymer insulators such as polyethylene, polypropylene, polytetrafluoroethylene, polyphenylene sulfite, and styrene-butadiene rubber are given as examples. To be
【００１４】３は開口部を有する電池缶もしくは電池蓋
を示す。Reference numeral 3 denotes a battery can or a battery lid having an opening.
【００１５】１を２を介して３にカシメることにより本
発明でいう正極ピン構造を有する電池を得ることができ
る。By crimping 1 into 3 through 2, a battery having the positive electrode pin structure referred to in the present invention can be obtained.
【００１６】図２は上記の方法にてカシメられた状態の
構造を示すものである。FIG. 2 shows the structure in a crimped state by the above method.
【００１７】図３は本発明の他の実施態様を示すもので
あり、１はＡｌもしくはＡｌ合金よりなるピンである。
４は高分子絶縁体層であり、１の表面を被覆している。
その材料は特に限定されるものではないが、前記と同様
にポリエチレン、ポリプロピレン、ポリテトラフロロエ
チレン、ポリフェニレンサルファイト、スチレンブタジ
エンゴム等の高分子絶縁体が一例として挙げられる。FIG. 3 shows another embodiment of the present invention, in which 1 is a pin made of Al or an Al alloy.
4 is a polymer insulator layer, which covers the surface of 1.
The material is not particularly limited, but examples thereof include polymer insulators such as polyethylene, polypropylene, polytetrafluoroethylene, polyphenylene sulfite, and styrene-butadiene rubber as described above.
【００１８】３は開口部を有する電池缶もしくは電池蓋
を示す。Reference numeral 3 denotes a battery can or a battery lid having an opening.
【００１９】図４は上記の方法にてカシメられた状態の
構造を示すものである。FIG. 4 shows the structure in a crimped state by the above method.
【００２０】図５は本発明のもう一つの実施態様を示す
ものであり、１はＡｌもしくはＡｌ合金よりなるピンで
ある。４は高分子絶縁体層であり、３の開口部の端面を
被覆している。その材料は特に限定されるものではない
が、前記と同様にポリエチレン、ポリプロピレン、ポリ
テトラフロロエチレン、ポリフェニレンサルファイト、
スチレンブタジエンゴム等の高分子絶縁体が一例として
挙げられる。FIG. 5 shows another embodiment of the present invention, in which 1 is a pin made of Al or an Al alloy. 4 is a polymer insulator layer, which covers the end face of the opening of 3. The material is not particularly limited, but polyethylene, polypropylene, polytetrafluoroethylene, polyphenylene sulphite, similar to the above,
An example is a polymer insulator such as styrene-butadiene rubber.
【００２１】３は開口部を有する電池缶もしくは電池蓋
を示す。Reference numeral 3 denotes a battery can or a battery lid having an opening.
【００２２】図６は上記の方法にてカシメられた状態の
構造を示すものである。FIG. 6 shows the structure in a crimped state by the above method.
【００２３】以下、実施例により本発明を更に詳しく説
明する。Hereinafter, the present invention will be described in more detail with reference to examples.
【００２４】[0024]
実施例１ Ａｌ材（Ａ−２０４０）よりなる図１のピン１を用い、
ポリプロピレンよりなるガスケット２を介して、１５０
ｋｇ／ｃｍ2の圧力で電池蓋３にカシメることにより図
２に示す正極ピン構造を有する電池蓋を作製した。Example 1 Using the pin 1 of FIG. 1 made of Al material (A-2040),
150 through the gasket 2 made of polypropylene
A battery lid having a positive electrode pin structure shown in FIG. 2 was produced by crimping the battery lid 3 with a pressure of kg / cm 2 .
【００２５】この正極ピンと電池蓋との間の絶縁抵抗及
び気密性を示すヘリウムリーク度は表１に示す通りであ
った。The helium leak degree showing the insulation resistance and airtightness between the positive electrode pin and the battery lid is shown in Table 1.
【００２６】尚、ヘリウムリーク度は、ライボルト株式
会社製 ヘリウムディテクターＵＬ１００ ＰＬＵＳを
用いて測定した。The helium leak rate was measured using a helium detector UL100 PLUS manufactured by Leibold Co., Ltd.
【００２７】実施例２ Ａｌ材（Ａ−１１００）よりなる図３のピン１にポリテ
トラフロロエチレンをコーティングし、図３の絶縁体層
４を形成させた後１５０ｋｇ／ｃｍ2の圧力で電池蓋３
にカシメることにより図４に示す正極ピン構造を有する
電池蓋を作製した。Example 2 A pin 1 of FIG. 3 made of an Al material (A-1100) was coated with polytetrafluoroethylene to form an insulating layer 4 of FIG. 3 and then a battery lid was formed at a pressure of 150 kg / cm 2. Three
By crimping, the battery lid having the positive electrode pin structure shown in FIG. 4 was produced.
【００２８】この正極ピンと電池蓋との間の絶縁抵抗及
び気密性を示すヘリウムリーク度は表１に示す通りであ
った。Table 1 shows the helium leak degree indicating the insulation resistance and airtightness between the positive electrode pin and the battery lid.
【００２９】実施例３ 図５の電池蓋３の開口部にポリテトラフロロエチレンを
コーティングし、図５の絶縁体層４を形成させた。１５
０ｋｇ／ｃｍ2の圧力でピン１を電池蓋３にカシメるこ
とにより図６に示す正極ピン構造を有する電池蓋を作製
した。Example 3 Polytetrafluoroethylene was coated on the opening of the battery lid 3 of FIG. 5 to form the insulating layer 4 of FIG. 15
A battery lid having a positive electrode pin structure shown in FIG. 6 was produced by crimping the pin 1 to the battery lid 3 with a pressure of 0 kg / cm 2 .
【００３０】この正極ピンと電池蓋との間の絶縁抵抗及
び気密性を示すヘリウムリーク度は表１に示す通りであ
った。The helium leak rate showing the insulation resistance and airtightness between the positive electrode pin and the battery lid is as shown in Table 1.
【００３１】比較例１ 実施例１に於いてＡｌ材（Ａ−２０４０）の代わりにＴ
ｉ材を用いた以外は全く同じ操作を行った。Comparative Example 1 In Example 1, T was used instead of the Al material (A-2040).
The same operation was performed except that the material i was used.
【００３２】この正極ピンと電池蓋との間の絶縁抵抗及
び気密性を示すヘリウムリーク度は表１に示す通りであ
った。The helium leak degree showing the insulation resistance and airtightness between the positive electrode pin and the battery lid is as shown in Table 1.
【００３３】比較例２ 実施例２に於いてＡｌ材（Ａ−１１００）の代わりにＳ
ＵＳ材（３０４）を用いた以外は全く同じ操作を行っ
た。Comparative Example 2 Instead of the Al material (A-1100) in Example 2, S was used.
Exactly the same operation was performed except that the US material (304) was used.
【００３４】この正極ピンと電池蓋との間の絶縁抵抗及
び気密性を示すヘリウムリーク度は表１に示す通りであ
った。The helium leak degree showing the insulation resistance and airtightness between the positive electrode pin and the battery lid is as shown in Table 1.
【００３５】[0035]
【表１】 [Table 1]
【００３６】[0036]
【発明の効果】上述のように本発明の電池用正極ピン構
造は電気絶縁性、気密性に優れ、且つ安価であり、電池
用部材として極めて有用である。As described above, the positive electrode pin structure for a battery of the present invention is excellent in electrical insulation and airtightness and inexpensive, and is extremely useful as a battery member.
【図１】本発明の正極ピンの各部材の説明図、FIG. 1 is an explanatory view of each member of a positive electrode pin of the present invention,
【図２】図１の各部材を組立てた状態の説明図、FIG. 2 is an explanatory view of a state in which each member of FIG. 1 is assembled,
【図３】本発明の正極ピンの他の具体例の各部材の説明
図、FIG. 3 is an explanatory view of each member of another specific example of the positive electrode pin of the present invention,
【図４】図４の各部材を組立てた状態の説明図、FIG. 4 is an explanatory view of a state in which each member of FIG. 4 is assembled,
【図５】本発明の正極ピンの他の具体例の各部材の説明
図、FIG. 5 is an explanatory view of each member of another specific example of the positive electrode pin of the present invention,
【図６】図５の各部材を組立てた状態の説明図である。6 is an explanatory view of a state in which each member of FIG. 5 is assembled.
１ ピン ２ ガスケット ３ 電池蓋 ４ 絶縁体層 1 pin 2 gasket 3 battery cover 4 insulator layer
───────────────────────────────────────────────────── フロントページの続き (72)発明者 湊 康文 神奈川県川崎市川崎区夜光１丁目３番１号 旭化成工業株式会社内 (72)発明者 栗栖 憲仁 東京都品川区南品川３−４−10 東芝電池 株式会社内 (72)発明者 金綱 務 神奈川県横浜市緑区霧ケ丘３−22−14− 202 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Yasufumi Minato 1-3-1 Yokou, Kawasaki-ku, Kawasaki-shi, Kanagawa Asahi Kasei Kogyo Co., Ltd. (72) Norihito Kurisu 3-4-10 Minami-Shinagawa, Shinagawa-ku, Tokyo Toshiba Battery Co., Ltd. (72) Inventor Kin Tsukasa 3-22-14-202 Kirigaoka, Midori-ku, Yokohama-shi, Kanagawa
Claims (1)
であって、該正極ピンが高分子絶縁体を介して電池缶も
しくは電池蓋にカシメられていることを特徴とする電池
用正極ピン構造。1. A positive electrode pin structure for a battery, comprising a positive electrode pin made of Al or an Al alloy, the positive electrode pin being caulked to a battery can or a battery lid through a polymer insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256295A JP3043912B2 (en) | 1992-09-25 | 1992-09-25 | Positive electrode pin structure and lithium ion battery having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256295A JP3043912B2 (en) | 1992-09-25 | 1992-09-25 | Positive electrode pin structure and lithium ion battery having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06111802A true JPH06111802A (en) | 1994-04-22 |
| JP3043912B2 JP3043912B2 (en) | 2000-05-22 |
Family
ID=17290677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4256295A Expired - Fee Related JP3043912B2 (en) | 1992-09-25 | 1992-09-25 | Positive electrode pin structure and lithium ion battery having the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3043912B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988009963A1 (en) * | 1987-06-12 | 1988-12-15 | Fanuc Ltd | Plc apparatus |
| JPH06251761A (en) * | 1993-02-25 | 1994-09-09 | Japan Storage Battery Co Ltd | Square shape lithium battery |
| US5585207A (en) * | 1994-03-03 | 1996-12-17 | Japan Storage Battery Co., Ltd. | Battery and safety device therefor |
| KR100466767B1 (en) * | 1998-09-02 | 2005-01-24 | 산요덴키가부시키가이샤 | Lithium Secondary Cell |
| JP2007193966A (en) * | 2006-01-17 | 2007-08-02 | Matsushita Electric Ind Co Ltd | Battery |
-
1992
- 1992-09-25 JP JP4256295A patent/JP3043912B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1988009963A1 (en) * | 1987-06-12 | 1988-12-15 | Fanuc Ltd | Plc apparatus |
| JPH06251761A (en) * | 1993-02-25 | 1994-09-09 | Japan Storage Battery Co Ltd | Square shape lithium battery |
| US5585207A (en) * | 1994-03-03 | 1996-12-17 | Japan Storage Battery Co., Ltd. | Battery and safety device therefor |
| US6136464A (en) * | 1994-03-03 | 2000-10-24 | Japan Storage Battery Co., Ltd. | Battery and safety device therefor |
| KR100466767B1 (en) * | 1998-09-02 | 2005-01-24 | 산요덴키가부시키가이샤 | Lithium Secondary Cell |
| JP2007193966A (en) * | 2006-01-17 | 2007-08-02 | Matsushita Electric Ind Co Ltd | Battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3043912B2 (en) | 2000-05-22 |
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