JPH06111803A - Positive electrode terminal for battery - Google Patents
Positive electrode terminal for batteryInfo
- Publication number
- JPH06111803A JPH06111803A JP4256305A JP25630592A JPH06111803A JP H06111803 A JPH06111803 A JP H06111803A JP 4256305 A JP4256305 A JP 4256305A JP 25630592 A JP25630592 A JP 25630592A JP H06111803 A JPH06111803 A JP H06111803A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- pin
- electrode pin
- chemical conversion
- 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)
- 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
電池の正極端子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 the positive electrode terminal of the battery.
【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。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。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 requires high hermeticity, the positive electrode pin material is further limited because it needs to have a value close to the thermal expansion coefficient of fused glass, and only titanium or a special SUS material is used. I could not do it. Titanium and special SUS materials are both expensive,
There were major difficulties in workability and weldability.
【０００４】[0004]
【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 new positive electrode pin that does not have the above-mentioned problems by devising an insulation method that does not rely on glassing.
【０００５】[0005]
【課題を解決するための手段】上記課題を解決するため
に本発明はＡｌもしくはＡｌ合金からなる正極ピンを用
い、該正極ピンが表面化成処理された金属を介して電池
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
電池用正極端子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
端子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 uses a positive electrode pin made of Al or an Al alloy, and the positive electrode pin is caulked to a battery can or a battery lid through a metal surface-treated. By using the positive electrode terminal structure for a battery characterized in that it is possible to use Al or Al alloy having excellent withstand voltage as a positive electrode pin material, a positive electrode terminal of a battery having an electromotive force of 3 V or more. As a result, an inexpensive and useful material can be provided.
【０００６】[0006]
【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.
【０００７】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.
【０００８】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 Al alloy as the positive electrode pin, it must be electrically insulated from the battery can or the battery lid that serves as the negative electrode terminal.
【０００９】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 insulation is, for example, Japanese Patent Laid-Open Nos. 61-248,356 and 6-SHO6.
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.
【００１０】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.
【００１１】本発明者等は更にガラス絶縁に代え、表面
化成処理された金属を絶縁体とし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表面化成
処理された金属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正極
端子を得ることができることを見出した。The inventors of the present invention further examined the surface-treated metal as an insulator instead of the glass insulation, and as a result,
Surprisingly, by crimping the pin made of Al or Al alloy to the battery can or the battery lid through the metal subjected to the surface chemical conversion treatment, it is possible to obtain a positive electrode terminal having excellent electric insulation and airtightness. I found it.
【００１２】本発明でいう表面化成処理とは金属表面を
化学的処理、電気化学的処理、物理的処理を行うことに
より、金属表面に安定な電気絶縁層を形成せしめるもの
であり、例えば陽極酸化化成処理、リン酸塩処理、シュ
ウ酸塩処理等の方法を例示することができる。The surface chemical conversion treatment referred to in the present invention is to form a stable electrical insulating layer on the metal surface by subjecting the metal surface to chemical treatment, electrochemical treatment, and physical treatment, for example, anodic oxidation. Examples include chemical conversion treatment, phosphate treatment, oxalate treatment and the like.
【００１３】又、この表面化成処理層にポリテトラフロ
ロエチレン等の樹脂を含浸せしめることにより更に安定
性を高めることもできる。Further, by impregnating the surface chemical conversion treatment layer with a resin such as polytetrafluoroethylene, the stability can be further enhanced.
【００１４】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は表面化成処理された金属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、アル
ミニウム、鉄、ニッケル、チタン、銅等の金属、更には
ステンレス等の前記金属の合金等が一例として挙げられ
る。FIG. 1 shows one embodiment of the present invention, in which 1 is a pin made of Al or an Al alloy. Reference numeral 2 is a gasket made of a metal subjected to surface chemical conversion treatment, and its material is not particularly limited, but metals such as aluminum, iron, nickel, titanium, copper, etc., and alloys of the above metals such as stainless steel, etc. As an example.
【００１５】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.
【００１６】ピン１をガスケット２を介して電池缶また
は電池蓋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 the pin 1 to the battery can or the battery lid 3 via the gasket 2, a battery having the positive electrode pin structure of the present invention can be obtained.
【００１７】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.
【００１８】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は表面化成処理された金属に樹脂が含浸されてなるガ
スケットである。その樹脂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、スチレンブタジエンゴム等の樹脂が一例と
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 Al alloy.
Reference numeral 4 is a gasket obtained by impregnating a surface-treated metal with a resin. The resin is not particularly limited, but examples thereof include resins such as polyethylene, polypropylene, polytetrafluoroethylene, and styrene-butadiene rubber.
【００１９】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.
【００２０】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.
【００２１】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は表面化成処理された金属に樹脂が含浸されて
なるガスケットであり、上下二つに分かれている。その
樹脂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. 5 shows another embodiment of the present invention, in which 1 is a pin made of Al or an Al alloy. Reference numeral 4 denotes a gasket formed by impregnating a surface-treated metal with a resin, which is divided into upper and lower parts. The resin is not particularly limited, but polyethylene,
Polymer insulators such as polypropylene, polytetrafluoroethylene, polyphenylene sulphite and styrene-butadiene rubber are mentioned as examples.
【００２２】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.
【００２３】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.
【００２４】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.
【００２５】[0025]
実施例１ Ａｌ材（Ａ−２０４０）よりなる図１のピン１を用い、
リン酸塩化成処理した鉄製のガスケット２を介して、１
５０ｋｇ／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),
Through the phosphate-treated iron gasket 2, 1
The battery lid 3 having a positive electrode pin structure shown in FIG. 2 was produced by crimping the battery lid 3 with a pressure of 50 kg / cm 2 .
【００２６】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 the airtightness between the positive electrode pin and the battery lid was as shown in Table 1.
【００２７】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.
【００２８】実施例２ Ａｌ材（Ａ−１１００）よりなる図３のピン１を用い、
陽極酸化化成処理した後ポリテトラフロロエチレンを含
浸せしめたアルミニウム製ガスケット４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
４に示す正極ピン構造を有する電池蓋を作製した。Example 2 Using the pin 1 of FIG. 3 made of Al material (A-1100),
150 via an aluminum gasket 4 impregnated with polytetrafluoroethylene after anodizing
A battery lid having a positive electrode pin structure shown in FIG. 4 was produced by crimping the battery lid 3 with a pressure of kg / cm 2 .
【００２９】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 was as shown in Table 1.
【００３０】実施例３ Ａｌ材（Ａ−１１００）よりなる図５のピン１を用い、
陽極酸化化成処理した後ポリテトラフロロエチレンを含
浸せしめた２個のアルミニウム製ガスケット４を介して
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 3 Using the pin 1 of FIG. 5 made of Al material (A-1100),
A battery lid having a positive electrode pin structure shown in FIG. 4 by caulking the battery lid 3 at a pressure of 150 kg / cm 2 through two aluminum gaskets 4 impregnated with polytetrafluoroethylene after being subjected to anodizing treatment. Was produced.
【００３１】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.
【００３２】比較例１ 実施例１に於いてリン酸塩化成処理しない以外は全く同
じ操作を行った。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。Comparative Example 1 The same operation as in Example 1 was carried out except that the phosphate chemical conversion treatment was not carried out. Table 1 shows the helium leak degree indicating the insulation resistance and the airtightness between the positive electrode pin and the battery lid.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【発明の効果】上述のように本発明の電池用正極端子は
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 battery positive electrode terminal of the present invention is excellent in electrical insulation and airtightness and inexpensive, and is extremely useful as a battery member.
【図１】本発明の一実施態様である端子を説明するため
の各部材の側面の模式図、FIG. 1 is a schematic side view of each member for explaining a terminal which is an embodiment of the present invention,
【図２】図１の各部材を組立てた端子の側面の模式図、FIG. 2 is a schematic view of a side surface of a terminal in which each member of FIG. 1 is assembled,
【図３】本発明の他の実施態様である端子を説明するた
めの各部材の側面の模式図、FIG. 3 is a schematic side view of each member for explaining a terminal that is another embodiment of the present invention,
【図４】図３の各部材を組立てた端子の側面の模式図、FIG. 4 is a schematic view of a side surface of a terminal in which each member of FIG. 3 is assembled,
【図５】本発明の更に他の実施態様である端子を説明す
るための各部材の側面の模式図、FIG. 5 is a schematic side view of each member for explaining a terminal that is still another embodiment of the present invention,
【図６】図５の各部材を組立てた端子の側面の模式図。6 is a schematic view of a side surface of a terminal in which each member of FIG. 5 is assembled.
１ ピン ２ 表面化成処理された金属製ガスケット ３ 開口部を有する電池缶または電池蓋 ４ 表面化成処理された金属に樹脂を含浸したガスケッ
ト1 pin 2 surface-treated metal gasket 3 battery can or battery lid with opening 4 surface-treated metal-impregnated resin gasket
───────────────────────────────────────────────────── 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三丁目４番10号 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 the front page (72) Inventor Yasufumi Minato 1-3-1 Yoko, Kawasaki-ku, Kawasaki-shi, Kanagawa Asahi Kasei Corporation (72) Inventor Norihito Kurisu 3-4-10 Minamishinagawa, Shinagawa-ku, Tokyo No. TOSHIBA Battery Co., Ltd. (72) Inventor, Kintsuka Kanetsu 3-22-14-202, Kirigaoka, Midori-ku, Yokohama-shi, Kanagawa
Claims (1)
ｌもしくはＡｌ合金からなり、該正極ピンが表面化成処
理された金属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端子。1. A positive electrode terminal for a battery, wherein the positive electrode pin is A
1. A positive electrode terminal for a battery, characterized in that the positive electrode pin is made of 1 or an Al alloy and is caulked to a battery can or a battery lid through a metal subjected to surface chemical conversion treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256305A JP2941126B2 (en) | 1992-09-25 | 1992-09-25 | Positive battery terminal and lithium ion battery having the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4256305A JP2941126B2 (en) | 1992-09-25 | 1992-09-25 | Positive battery terminal and lithium ion battery having the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06111803A true JPH06111803A (en) | 1994-04-22 |
| JP2941126B2 JP2941126B2 (en) | 1999-08-25 |
Family
ID=17290821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4256305A Expired - Fee Related JP2941126B2 (en) | 1992-09-25 | 1992-09-25 | Positive battery terminal and lithium ion battery having the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2941126B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5585207A (en) * | 1994-03-03 | 1996-12-17 | Japan Storage Battery Co., Ltd. | Battery and safety device therefor |
| JP2001307715A (en) * | 2000-04-19 | 2001-11-02 | Dainippon Printing Co Ltd | Lithium ion battery tab and conversion treatment method of tab material |
| JP2002203537A (en) * | 2000-12-27 | 2002-07-19 | Kyocera Corp | Battery terminals |
| JP2009004277A (en) * | 2007-06-22 | 2009-01-08 | Gs Yuasa Corporation:Kk | Battery |
| JP2015164102A (en) * | 2014-02-28 | 2015-09-10 | 三菱重工業株式会社 | Terminal fixing structure, battery, and terminal fixing method |
-
1992
- 1992-09-25 JP JP4256305A patent/JP2941126B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| JP2001307715A (en) * | 2000-04-19 | 2001-11-02 | Dainippon Printing Co Ltd | Lithium ion battery tab and conversion treatment method of tab material |
| JP2002203537A (en) * | 2000-12-27 | 2002-07-19 | Kyocera Corp | Battery terminals |
| JP2009004277A (en) * | 2007-06-22 | 2009-01-08 | Gs Yuasa Corporation:Kk | Battery |
| JP2015164102A (en) * | 2014-02-28 | 2015-09-10 | 三菱重工業株式会社 | Terminal fixing structure, battery, and terminal fixing method |
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| JP2941126B2 (en) | 1999-08-25 |
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