发明名称 |
HERMETICALLY SEALED BATTERY AND METHOD FOR MANUFACTURING THE SAME |
摘要 |
A sealed battery including: an electrode group 4 formed by winding or stacking a positive electrode plate 1 and a negative electrode plate 2 with a separator 3 interposed between the positive electrode plate 1 and the negative electrode plate 2, and housed in a battery case 5, an opening of the battery case 5 being sealed with a sealing plate, wherein a lead 11 extending from one of the electrode plates in the electrode group 4 is laser-welded to the sealing plate 10, and a melting width of an end section 13 of a welded portion 9 between the lead 11 and the sealing plate 10 is smaller than a melting width of a center section of the welded portion 9. |
申请公布号 |
US2012121954(A1) |
申请公布日期 |
2012.05.17 |
申请号 |
US201013381858 |
申请日期 |
2010.07.21 |
申请人 |
HARIMA YUKIO;FUNAMI KOJI;KUMAZAWA SEIJI;MIYATA KYOSUKE;FUKUOKA TAKAHIRO;KATO SEIICHI |
发明人 |
HARIMA YUKIO;FUNAMI KOJI;KUMAZAWA SEIJI;MIYATA KYOSUKE;FUKUOKA TAKAHIRO;KATO SEIICHI |
分类号 |
H01M2/08;H01M4/00;H01M6/00 |
主分类号 |
H01M2/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|