发明名称 |
Alkaline dry battery |
摘要 |
A leak-proof alkaline dry battery including a battery case and a seal unit for closing the opening of the battery case. The seal unit includes: a negative electrode terminal plate; a negative electrode current collector nail electrically connected to the terminal plate; and a resin seal member. The resin seal member includes: a central cylindrical part having an opening through which the body of the negative electrode current collector nail is inserted; an outer peripheral cylindrical part interposed between a peripheral edge of the negative electrode terminal plate and an open edge of the battery case; a connecting part interconnecting the central and outer peripheral cylindrical parts; and a thinned section formed in the connecting part. The body of the negative electrode current collector nail is fitted to the opening of the central cylindrical part in a particular fit relation to prevent leakage for a long time. |
申请公布号 |
EP2031671(A1) |
申请公布日期 |
2009.03.04 |
申请号 |
EP20080155717 |
申请日期 |
2008.05.06 |
申请人 |
PANASONIC CORPORATION |
发明人 |
MATSUHISA, ICHIRO;WADA, SEIJI;SUMIHIRO, YASUSHI;SYOJI, YASUHIKO |
分类号 |
H01M2/04;H01M2/08;H01M2/12;H01M6/08 |
主分类号 |
H01M2/04 |
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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