发明名称 |
BATTERY CONTAINER HAVING CRUCIFORM VENT AND COVER |
摘要 |
An electrochemical cell is provided with an enhanced pressure relief vent formed in a closed end of the cell container that achieves effective venting of gas from the closed end of the container. The electrochemical cell including a container having a first end, a second end, a side wall extending between the first and second ends, and an end wall extending across the first end. The cell has a positive electrode, a negative, and an aqueous alkaline electrolyte, all disposed in the container. The cell further includes a pressure relief vent having a reduced thickness groove formed in the end wall of the container. The reduced thickness groove is formed having eight segments extending radially from a central location. A cover is welded on the end wall of the container via at least three welds, wherein the angular spacing between two adjacent welds is greater than 120°. |
申请公布号 |
EP2022112(B1) |
申请公布日期 |
2010.12.08 |
申请号 |
EP20070795282 |
申请日期 |
2007.05.23 |
申请人 |
EVEREADY BATTERY COMPANY, INC.;H&T WATERBURY, INC.;H & T BATTERY COMPONENTS USA, INC. |
发明人 |
BOUFFARD, RICHARD L.;EBNER, WALTER B.;BEGG, R. JUSTIN;STEARNS, JOHN C.;RAY, ROBERT E. |
分类号 |
H01M2/12;H01M2/02;H01M2/04;H01M10/28 |
主分类号 |
H01M2/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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