| 发明名称 |
BATTERY SAFETY VALVE MANUFACTURING METHOD, BATTERY SAFETY VALVE MANUFACTURING DEVICE, BATTERY SAFETY VALVE, AND BATTERY CASE LID MANUFACTURING METHOD |
| 摘要 |
In a method for manufacturing a battery safety valve according to the present invention, a stainless steel metal sheet is used, and an thin annular portion 3 constituting an edge portion of a safety valve 2 is formed in a lid 1 by simultaneously pressing annular projecting portions 23 provided respectively on a punch 21 and a die 22 so as to oppose each other, against respective surfaces of the lid 1. |
| 申请公布号 |
EP2693524(A1) |
申请公布日期 |
2014.02.05 |
| 申请号 |
EP20120765527 |
申请日期 |
2012.03.13 |
| 申请人 |
NISSHIN STEEL CO., LTD. |
发明人 |
OOTSUKA, MASATO;MORIKAWA, SHIGERU |
| 分类号 |
H01M2/12;H01M2/04 |
主分类号 |
H01M2/12 |
| 代理机构 |
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