JP2003272604A - Sealed battery - Google Patents
Sealed batteryInfo
- Publication number
- JP2003272604A JP2003272604A JP2003003260A JP2003003260A JP2003272604A JP 2003272604 A JP2003272604 A JP 2003272604A JP 2003003260 A JP2003003260 A JP 2003003260A JP 2003003260 A JP2003003260 A JP 2003003260A JP 2003272604 A JP2003272604 A JP 2003272604A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- electrode lead
- electrode
- plate
- sealed 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.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 16
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 26
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 230000008018 melting Effects 0.000 claims description 15
- 238000002844 melting Methods 0.000 claims description 15
- 229910045601 alloy Inorganic materials 0.000 claims description 13
- 239000000956 alloy Substances 0.000 claims description 13
- 229910052759 nickel Inorganic materials 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 abstract 3
- 239000007769 metal material Substances 0.000 abstract 2
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 238000005304 joining Methods 0.000 description 4
- 238000000605 extraction Methods 0.000 description 3
- 230000001678 irradiating effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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]
【発明の属する技術分野】本発明は、金属缶を外装材と
した密閉型電池に関するものであり、特に電池缶側とは
異なる極性の電極端子に特徴を有する密閉型電池に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sealed battery having a metal can as an exterior material, and more particularly to a sealed battery characterized by an electrode terminal having a polarity different from that of the battery can.
【０００２】[0002]
【従来の技術】携帯型機器用の電源として用いられてい
るリチウムイオン電池等は、電池缶、合成樹脂フイルム
等の可撓性部材を外装材としている。電池缶を外装材と
した電池は、外部からの衝撃にも強く、封口特性が良好
であるので広く用いられている。電池缶を外装材とした
電池では、電池缶側を一方の極性の電極端子とし、他方
の電極端子は外装材に絶縁性部材を介して形成されてい
る。2. Description of the Related Art A lithium ion battery used as a power source for a portable device has a flexible member such as a battery can or a synthetic resin film as an exterior material. Batteries using a battery can as an exterior material are widely used because they are resistant to external impact and have good sealing characteristics. In a battery having a battery can as an exterior material, the battery can side has an electrode terminal of one polarity, and the other electrode terminal is formed on the exterior material via an insulating member.
【０００３】電池缶側とは極性が異なる電極端子は、電
池缶の開口部に装着する電池ヘッダに形成されており、
電池缶内に電池要素を収納した後に、電池要素に接合し
たタブを電池ヘッダの電極端子に抵抗溶接、レーザ溶接
によって導電接続した後に、電池缶の開口部に装着し、
電池缶の壁面と電池ヘッダとの会合部をレーザ溶接等に
よって封口している。The electrode terminal having a polarity different from that of the battery can is formed on the battery header to be installed in the opening of the battery can.
After housing the battery element in the battery can, the tab joined to the battery element is conductively connected to the electrode terminal of the battery header by resistance welding or laser welding, and then attached to the opening of the battery can,
The wall of the battery can and the meeting portion of the battery header are sealed by laser welding or the like.
【０００４】図４に、密閉型電池の電極端子の一例を示
す上部の断面図である。密閉型電池１の電池缶２の上部
開口部には、電池ヘッダ３が取り付けられており、電池
缶内に設けた電池要素４の一方の電極に接合したタブ５
が、電極端子６の電極導出ピン７に接合されている。電
極導出ピン７は、電池ヘッダ３の金属板８に設けた貫通
孔に装着した外部絶縁板９および内部絶縁板１０によっ
て電池ヘッダの金属板から絶縁されており、外部絶縁板
の上面には、外部回路接続用のリード線の接合工程が容
易に行われるように、ニッケル板等の接合特性が良好な
電極引出板１１が設けられている。電極端子は電池ヘッ
ダの金属板に設けた貫通孔に、外部絶縁板、内部絶縁
板、電極引出板を装着した後に内部絶縁板側から電極導
出ピンを貫通させて電極導出ピンをかしめることによっ
て製造されている。アルミニウムまたはその合金等から
なる電極導出ピンと、ニッケル板等からなる電極引出板
との接触面は、大気中の酸素、水分等が侵入して経年変
化をし、その結果、表面の接触部の導電性が低下するこ
とがあった。FIG. 4 is a sectional view of the upper part showing an example of the electrode terminals of the sealed battery. A battery header 3 is attached to an upper opening of a battery can 2 of a sealed battery 1, and a tab 5 joined to one electrode of a battery element 4 provided in the battery can.
Is joined to the electrode lead-out pin 7 of the electrode terminal 6. The electrode lead-out pin 7 is insulated from the metal plate of the battery header by an external insulating plate 9 and an internal insulating plate 10 mounted in through holes provided in the metal plate 8 of the battery header 3, and the upper surface of the external insulating plate is An electrode lead-out plate 11 such as a nickel plate having a good joining characteristic is provided so that the step of joining the lead wires for external circuit connection can be easily performed. Electrode terminals are installed by inserting an external insulating plate, an internal insulating plate, and an electrode lead-out plate into the through holes provided in the metal plate of the battery header, and then inserting the electrode lead-out pin from the inner insulating plate side and caulking the electrode lead-out pin. Being manufactured. The contact surface between the electrode lead-out pin made of aluminum or its alloy, etc. and the electrode lead-out plate made of nickel plate, etc. changes over time due to the entry of oxygen, moisture, etc. in the atmosphere, and as a result, the conductivity of the contact part on the surface is changed. There was a case where the sex decreased.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、異種の金属
の接触のみで形成された導電接続部の接触抵抗の改善を
課題とするものであり、接触部の経年変化による接触抵
抗の増大を防止した密閉型電池を提供することを課題と
するものである。An object of the present invention is to improve the contact resistance of a conductive connecting portion formed only by contacting different kinds of metals, and to increase the contact resistance due to aging of the contact portion. It is an object of the present invention to provide a sealed battery which is prevented.
【０００６】[0006]
【課題を解決するための手段】本発明の課題は、電池缶
の開口部に装着した電池ヘッダに絶縁性部材を介在させ
て装着した電極引出板を電極引出板とは異種金属の電極
導出ピンでかしめて一体化した電極端子を有する密閉型
電池において、電極引出板と電極導出ピンとの接触部の
少なくとも一カ所にレーザ溶接によって接合部を設けた
密閉型電池によって解決することができる。また、電極
導出ピンがアルミニウムまたはその合金であり、電極引
出板がアルミニウムまたはその合金とは融点が異なる異
種の金属または合金である前記の密閉型電池である。電
極引出板が、ニッケル、鉄、銅、あるいはそれらの合
金、ステンレス鋼からなる群から選ばれる金属から形成
されている前記の密閉型電池である。SUMMARY OF THE INVENTION An object of the present invention is to provide an electrode lead-out plate mounted on a battery header mounted in an opening of a battery can with an insulating member interposed, and an electrode lead-out pin made of a metal different from the electrode lead-out plate. In the sealed battery having the electrode terminals which are swaged and integrated, the problem can be solved by the sealed battery in which at least one contact portion between the electrode extraction plate and the electrode lead-out pin is provided with a joint portion by laser welding. Further, in the above sealed battery, the electrode lead-out pin is aluminum or an alloy thereof, and the electrode lead-out plate is a different metal or alloy having a melting point different from that of aluminum or its alloy. In the above sealed battery, the electrode lead-out plate is made of a metal selected from the group consisting of nickel, iron, copper, alloys thereof, and stainless steel.
【０００７】密閉型電池の製造方法において、電池缶の
開口部に装着した電池ヘッダに絶縁性部材を介在させて
装着した電極引出板を電極引出板とは異種金属の電極導
出ピンでかしめて一体化して電極端子を作製した後に、
電極導出ピンと電極引出板との接触部の少なくとも一カ
所にレーザ溶接によって接合部を形成する密閉型電池の
製造方法である。レーザ溶接が、予熱、接合部の溶融、
および凝固部のクラック防止の順に異なる出力のレーザ
を照射して行う前記の密閉型電池の製造方法である。In the method of manufacturing a sealed battery, an electrode lead-out plate mounted with an insulating member interposed in a battery header attached to the opening of a battery can is caulked with an electrode lead-out pin made of a different metal from the electrode lead-out plate to be integrated. After making it into an electrode terminal,
It is a method of manufacturing a sealed battery, wherein a joint is formed by laser welding at least at one place of a contact portion between an electrode lead-out pin and an electrode lead plate. Laser welding, preheating, melting of joints,
And a method for manufacturing the sealed battery, which is performed by irradiating laser beams having different outputs in order of preventing cracks in the solidified portion.
【０００８】[0008]
【発明の実施の形態】本発明は、アルミニウム製の電極
導出ピンとニッケル板等の融点が大きく異なる電極引出
板とをその接触部の一部をレーザ溶接によって接合した
のものでる。その結果、アルミニウムとニッケルのよう
に、融点が大きく異なると共に、両者の間で金属間化合
物を形成して、充分な強度が得られない場合であって
も、両者の接合部の間の導電接続を保持することが可能
であり、しかも接合部の導電接続は経時変化もなく安定
なものであることを見いだしたものである。BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, a part of the contact portion of an electrode lead-out pin made of aluminum and an electrode lead-out plate such as a nickel plate having a greatly different melting point are joined by laser welding. As a result, even when aluminum and nickel have different melting points and an intermetallic compound is formed between the two, even if sufficient strength cannot be obtained, a conductive connection between the two joints is formed. It has been found that the conductive connection at the joint can be maintained without change over time.
【０００９】以下に、図面を参照して本発明を説明す
る。図１は、本発明の密閉型電池の電極端子部の断面を
説明する図である。図１（Ａ）は、本発明の密閉型電池
を説明する斜視図であり、図１（Ｂ）は、密閉型電池の
上部を説明する断面図である。密閉型電池１の電池缶２
の上部開口部には、電池ヘッダ３が取り付けられてお
り、電池缶内に設けた電池要素４の一方の電極に接合し
たタブ５が、電極端子６の電極導出ピン７に接合されて
いる。アルミニウム製の電極導出ピン７は、電池ヘッダ
３の金属板８に設けた貫通孔に装着した外部絶縁板９お
よび内部絶縁板１０によって電池ヘッダの金属板から絶
縁されており、外部絶縁板の上面には、外部回路接続用
リード線を接合するニッケル製の電極引出板１１が設け
られている。The present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a cross section of an electrode terminal portion of the sealed battery of the present invention. 1A is a perspective view illustrating a sealed battery of the present invention, and FIG. 1B is a cross-sectional view illustrating an upper portion of the sealed battery. Battery can 2 of sealed battery 1
A battery header 3 is attached to the upper opening of the, and a tab 5 joined to one electrode of a battery element 4 provided in the battery can is joined to an electrode lead-out pin 7 of an electrode terminal 6. The electrode lead-out pin 7 made of aluminum is insulated from the metal plate of the battery header by the outer insulating plate 9 and the inner insulating plate 10 mounted in the through holes provided in the metal plate 8 of the battery header 3, and the upper surface of the outer insulating plate. Is provided with an electrode lead-out plate 11 made of nickel for joining a lead wire for external circuit connection.
【００１０】そして、電極引出板１１の表面と電極導出
ピン７をかしめることによって形成された外周部１２と
電極引出板１１との接触部はレーザ照射によってニッケ
ルとアルミニウムからなるナゲットによって接合部１３
が形成されている。電極引出板１１と電極導出ピン７と
の接触部に形成される接合部１３は、電極導出ピンと電
極引出板との接触面での導電接続部とともに通電に寄与
するので、接合部は一カ所のみで良い。接合部の大きさ
は、直径０．６ｍｍ程度の大きさとすることで十分な電
流を通電することができる。また、複数箇所に設ける場
合には、電極端子に歪みが形成されることがないように
配置することが必要である。The contact portion between the electrode lead-out plate 11 and the outer peripheral portion 12 formed by caulking the surface of the electrode lead-out plate 11 and the electrode lead-out pin 7 is joined by a laser-irradiated nugget made of nickel and aluminum.
Are formed. Since the joint portion 13 formed at the contact portion between the electrode lead-out plate 11 and the electrode lead-out pin 7 contributes to the conduction together with the conductive connection portion at the contact surface between the electrode lead-out pin and the electrode lead-out plate, there is only one joint portion. Good. A sufficient current can be passed by setting the size of the joint to a diameter of about 0.6 mm. In addition, when it is provided at a plurality of locations, it is necessary to dispose the electrode terminals so that no strain is formed.
【００１１】また、接合部に照射するレーザは、両者の
界面に対して照射し、接合部において両者を充分に溶融
させることが好ましい。しかしながら、アルミニウムあ
るいはその合金と、ニッケルあるいはその合金は融点が
大きく異なるので、単に両者を溶融するのみではクラッ
クが生じない接合部を形成することは困難である。Further, it is preferable that the laser for irradiating the joint is irradiated to the interface between the both to sufficiently melt both at the joint. However, since the melting point of aluminum or its alloy is significantly different from that of nickel or its alloy, it is difficult to form a joint where cracks do not occur simply by melting both.
【００１２】そこで、接合部に照射するレーザは、まず
低出力で所定の時間照射して接合部を予熱した後に、両
者を溶融する出力を照射して溶接する。次いで、溶接時
に比べて小さな出力のレーザを照射して凝固時のクラッ
ク防止を行うという、三段階に照射時間と出力を調整
し、充分に溶融して接合部を形成するとともに、凝固部
にクラックが生じないようにすることが好ましい。Therefore, the laser for irradiating the joint is first radiated with a low output for a predetermined time to preheat the joint, and then is radiated with an output for melting the both for welding. Next, laser irradiation with a smaller output than that during welding is performed to prevent cracks during solidification.The irradiation time and output are adjusted in three stages to form a joint by sufficient melting and cracks in the solidified part. Is preferably prevented.
【００１３】以上の説明においては、アルミニウムまた
はその合金製の導電接続ピンとニッケル（融点１４５５
℃）製の電極引出板について述べたが、融点が６６０℃
程度のアルミニウムまたはその合金製の導電接続ピン
と、鉄（融点１５３５℃）、銅（融点１０８３℃）、鉄
と同様の融点を示すステンレス鋼等を電極引出板として
溶接を行う場合にも同様である。In the above description, the conductive connection pin made of aluminum or its alloy and nickel (melting point 1455) are used.
℃) electrode extraction plate, the melting point is 660 ℃
The same applies to the case where the conductive connecting pin made of aluminum or its alloy, iron (melting point 1535 ° C.), copper (melting point 1083 ° C.), stainless steel or the like having a melting point similar to iron is used as the electrode extraction plate. .
【００１４】[0014]
【実施例】以下に、アルミニウム製の電極導出ピンとニ
ッケル製の電極引出板とを用いた場合について、実施
例、比較例を示し、本発明を説明する。
実施例１
直径３ｍｍのアルミニウム製の電極導出ピンによって、
幅３ｍｍ、長さ９ｍｍ、厚さ０．３ｍｍのニッケル製の
電極引出板をかしめて電極端子を形成した。電極端子の
電極導出ピンと電極引出板との界面の一カ所に、直径
０．３ｍｍの光ファイバーによって図２に示すパターン
でレーザを照射した。すなわち、余熱：出力１．４ｋ
Ｗ、照射時間１ｍｓ、溶接：出力３ｋＷ、照射時間１．
５ｍｓ、凝固クラック防止：出力１．４ｋＷ、照射時間
１ｍｓの順にレーザの照射出力を変化させて接合部を形
成した。EXAMPLES The present invention will be described below by showing Examples and Comparative Examples in the case of using an electrode lead-out pin made of aluminum and an electrode lead-out plate made of nickel. Example 1 With an electrode lead-out pin made of aluminum having a diameter of 3 mm,
An electrode lead plate made of nickel and having a width of 3 mm, a length of 9 mm and a thickness of 0.3 mm was caulked to form an electrode terminal. A laser was irradiated to one part of the interface between the electrode lead-out pin of the electrode terminal and the electrode lead-out plate with an optical fiber having a diameter of 0.3 mm in the pattern shown in FIG. That is, residual heat: output 1.4k
W, irradiation time 1 ms, welding: output 3 kW, irradiation time 1.
5 ms, solidification crack prevention: output 1.4 kW, irradiation time 1 ms was changed in this order to form a joint.
【００１５】接合部をＸ線マイクロアナライザによる成
分元素のマッピング分析によって測定した結果を図３に
示す。接合部にはアルミニウムとニッケルの両者が均一
に分布したものであることが確認できた。FIG. 3 shows the result of measurement of the bonding portion by mapping analysis of the constituent elements by an X-ray microanalyzer. It was confirmed that both aluminum and nickel were uniformly distributed in the joint.
【００１６】また、作製した試料電池１ないし５を製造
直後に電極導出ピンと電極引出板との間の接触抵抗を測
定した後に、８５℃、９０％ＲＨの条件で７日間保存す
る加速試験を行った後の接触抵抗を測定し、その結果を
表１に示す。Immediately after production, the contact resistance between the electrode lead-out pin and the electrode lead-out plate of each of the prepared sample batteries 1 to 5 was measured, and then an accelerated test was carried out in which the sample batteries were stored at 85 ° C. and 90% RH for 7 days. After that, the contact resistance was measured, and the results are shown in Table 1.
【００１７】比較例１
レーザ溶接によって接合部を形成しなかった点を除き実
施例１と同様に試料電池６ないし１０を作製して、実施
例１と同様にして接触部のインピーダンスを製造直後と
加速試験後に測定し、その結果を表１に示す。Comparative Example 1 Sample batteries 6 to 10 were prepared in the same manner as in Example 1 except that the joint was not formed by laser welding, and the impedance of the contact portion was measured immediately after the production in the same manner as in Example 1. The measurement was performed after the acceleration test, and the results are shown in Table 1.
【００１８】[0018]
【表１】 レーザ溶接有 レーザ溶接無し電池番号 １ ２ ３ ４ ５ ６ ７ ８ ９ １０ 製造直後(Ω) 0.37 0.41 0.38 0.34 0.37 0.36 0.34 0.41 0.39 0.38 加速試験後(Ω)0.37 0.37 0.48 0.46 0.35 1.24 1.60 1.26 0.74 1.34[Table 1] With laser welding Without laser welding Battery No. 1 2 3 4 5 6 7 8 9 10 Immediately after production (Ω) 0.37 0.41 0.38 0.34 0.37 0.36 0.34 0.41 0.39 0.38 After accelerated test (Ω) 0.37 0.37 0.48 0.46 0.35 1.24 1.60 1.26 0.74 1.34
【００１９】[0019]
【発明の効果】本発明は、密閉型電池に設けた、かしめ
加工によって形成される電極端子において、融点が大き
く異なる異種金属の接触部に、レーザ溶接によって接合
部を形成したので、経年変化による接触面の導電接続特
性の悪化を防止することができ、特性が安定した密閉型
電池を提供することができる。EFFECTS OF THE INVENTION According to the present invention, in the electrode terminal formed in the sealed battery by caulking, the joining portion is formed by laser welding at the contact portion of different metals having greatly different melting points. It is possible to prevent deterioration of the conductive connection characteristics of the contact surface, and to provide a sealed battery having stable characteristics.
【図１】図１は、本発明の密閉型電池の電極端子部の断
面を説明する図である。FIG. 1 is a diagram illustrating a cross section of an electrode terminal portion of a sealed battery of the present invention.
【図２】図２は、レーザの照射パターンの一実施例を説
明する図である。FIG. 2 is a diagram illustrating an example of a laser irradiation pattern.
【図３】図３は、接合部の組成を説明する図である。FIG. 3 is a diagram illustrating a composition of a bonded portion.
【図４】図４は、密閉型電池の電極端子の一例を説明す
る図である。FIG. 4 is a diagram illustrating an example of electrode terminals of a sealed battery.
１…密閉型電池、２…電池缶、３…電池ヘッダ、４…電
池要素、５…タブ、６…電極端子、７…電極導出ピン、
８…金属板、９…外部絶縁板、１０…内部絶縁板、１１
…電極引出板、１２…外周部、１３…接合部1 ... Sealed battery, 2 ... Battery can, 3 ... Battery header, 4 ... Battery element, 5 ... Tab, 6 ... Electrode terminal, 7 ... Electrode lead-out pin,
8 ... Metal plate, 9 ... External insulating plate, 10 ... Internal insulating plate, 11
... electrode lead-out plate, 12 ... outer peripheral part, 13 ... joint part
───────────────────────────────────────────────────── フロントページの続き (72)発明者 大島 康伸 栃木県宇都宮市針ヶ谷町484番地 エヌイ ーシートーキン栃木株式会社内 Ｆターム(参考） 5H011 AA04 CC06 DD13 EE02 EE04 5H022 AA09 BB17 CC02 CC03 CC08 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yasunobu Oshima Enui, 484 Harigayacho, Utsunomiya City, Tochigi Prefecture -Seat-kin Tochigi Co., Ltd. F-term (reference) 5H011 AA04 CC06 DD13 EE02 EE04 5H022 AA09 BB17 CC02 CC03 CC08
Claims (3)
絶縁性部材を介在させて装着した電極引出板を電極引出
板とは異種金属の電極導出ピンでかしめて一体化した電
極端子を有する密閉型電池において、電極引出板と電極
導出ピンとの接触部の少なくとも一カ所にレーザ溶接に
よって接合部を設けたことを特徴とする密閉型電池。1. An electrode lead-out plate, which is attached to a battery header attached to an opening of a battery can with an insulating member interposed, has an electrode terminal integrated by caulking with an electrode lead-out pin made of a metal different from the electrode lead-out plate. A sealed battery, characterized in that a joint portion is provided by laser welding at least at one portion of a contact portion between the electrode lead-out plate and the electrode lead-out pin.
合金であり、電極引出板がアルミニウムまたはその合金
とは融点が異なる異種の金属または合金であることを特
徴とする請求項１記載の密閉型電池。2. The sealed battery according to claim 1, wherein the electrode lead-out pin is aluminum or its alloy, and the electrode lead-out plate is a different metal or alloy having a melting point different from that of aluminum or its alloy.
いはそれらの合金、ステンレス鋼からなる群から選ばれ
る金属から形成されていることを特徴とする請求項２記
載の密閉型電池。3. The sealed battery according to claim 2, wherein the electrode lead-out plate is formed of a metal selected from the group consisting of nickel, iron, copper, alloys thereof, and stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003003260A JP2003272604A (en) | 2002-01-09 | 2003-01-09 | Sealed battery |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002002605 | 2002-01-09 | ||
| JP2002-2605 | 2002-01-09 | ||
| JP2003003260A JP2003272604A (en) | 2002-01-09 | 2003-01-09 | Sealed battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2003272604A true JP2003272604A (en) | 2003-09-26 |
Family
ID=29217816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003003260A Pending JP2003272604A (en) | 2002-01-09 | 2003-01-09 | Sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2003272604A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006318671A (en) * | 2005-05-10 | 2006-11-24 | Mitsubishi Motors Corp | Battery |
| KR100922474B1 (en) | 2007-01-18 | 2009-10-21 | 삼성에스디아이 주식회사 | Rechageable battery |
| US8232002B2 (en) | 2007-09-28 | 2012-07-31 | Sanyo Electric Co., Ltd. | Sealed battery and manufacturing method thereof |
| EP2507853A1 (en) * | 2009-12-04 | 2012-10-10 | Robert Bosch GmbH | Method for producing an electrically conductive connection |
| US8439983B2 (en) | 2007-03-30 | 2013-05-14 | Sanyo Electric Co., Ltd. | Sealed battery with electrode terminal welded to current collector, and manufacturing method for the same |
| JP2017147209A (en) * | 2016-02-19 | 2017-08-24 | パナソニックＩｐマネジメント株式会社 | Battery and manufacturing method for the same |
-
2003
- 2003-01-09 JP JP2003003260A patent/JP2003272604A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006318671A (en) * | 2005-05-10 | 2006-11-24 | Mitsubishi Motors Corp | Battery |
| KR100922474B1 (en) | 2007-01-18 | 2009-10-21 | 삼성에스디아이 주식회사 | Rechageable battery |
| US8507127B2 (en) | 2007-01-18 | 2013-08-13 | Samsung Sdi Co., Ltd. | Rechargeable battery |
| US8439983B2 (en) | 2007-03-30 | 2013-05-14 | Sanyo Electric Co., Ltd. | Sealed battery with electrode terminal welded to current collector, and manufacturing method for the same |
| US8232002B2 (en) | 2007-09-28 | 2012-07-31 | Sanyo Electric Co., Ltd. | Sealed battery and manufacturing method thereof |
| US8440348B2 (en) | 2007-09-28 | 2013-05-14 | Sanyo Electric Co., Ltd. | Sealed battery |
| EP2507853A1 (en) * | 2009-12-04 | 2012-10-10 | Robert Bosch GmbH | Method for producing an electrically conductive connection |
| JP2013513196A (en) * | 2009-12-04 | 2013-04-18 | ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング | Method for forming a conductive connection |
| JP2017147209A (en) * | 2016-02-19 | 2017-08-24 | パナソニックＩｐマネジメント株式会社 | Battery and manufacturing method for the same |
| WO2017141296A1 (en) * | 2016-02-19 | 2017-08-24 | パナソニックＩｐマネジメント株式会社 | Battery and method for manufacturing same |
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