发明名称 |
PRISMATIC BATTERY SHORT CIRCUIT INSPECTION METHOD, PRISMATIC BATTERY MANUFACTURING METHOD AND CURRENT COLLECTOR SHAPE ADJUSTING DEVICE |
摘要 |
An object of the present invention is to easily detect a short circuit failure in a current collector of a prismatic battery and prevent a short circuit caused by an existence of a burr generated while cutting or a spatter generated while welding the current collector to an electrode plate. A battery unit is housed in a metallic battery case. In the battery unit, current collectors having bent portions on both sides are fixed to face surfaces of an electrode plate group of a prismatic battery. The portions of the battery case, which correspond to the bent portions, are pressed in a thickness direction. Under the pressure, a short circuit inspection for a short circuit between the battery case and the current collectors of the battery unit is executed. When a projected object exists on the bent portion, a short circuit is generated between the battery case and the current collector by pressing so that a short circuit failure caused by a shape of the current collector can be detected.
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申请公布号 |
US2008157779(A1) |
申请公布日期 |
2008.07.03 |
申请号 |
US20070954900 |
申请日期 |
2007.12.12 |
申请人 |
PANASONIC EV ENERGY CO., LTD. |
发明人 |
ONISHI MASATO;SAKAI SHINICHI;DOUTAI MASARU;KOBAYASHI MASARU;ARAI HIROAKI |
分类号 |
G01R31/00 |
主分类号 |
G01R31/00 |
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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