发明名称 |
Square battery and manufacturing method of the same |
摘要 |
A positive electrode sheet and a negative electrode sheet are laminated and wound around a shaft core 126 while being insulated by a separator. Spreading operation plates 90P and 90N are fitted to both ends of the shaft core 126 in a winding axis direction, and operation protrusions 91A to 92B of the spreading operation plates 90P and 90N protrude from both flat end surfaces of a wound body 120. The spreading operation plates 90P and 90N are spread, so that laminate parts of a positive electrode connection part 122A and a negative electrode connection part 124A are pushed and extended outward on the flat end surfaces of the wound body 120, and V-shaped openings 120V continuous with the innermost peripheries of the wound body 120 are formed. The laminate parts are welded to positive and negative electrode current collectors 115 and 116.
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申请公布号 |
US8530068(B2) |
申请公布日期 |
2013.09.10 |
申请号 |
US201013578310 |
申请日期 |
2010.03.10 |
申请人 |
URANO KAZUAKI;HIRANO FUJIO;HITACHI VEHICLE ENERGY, LTD. |
发明人 |
URANO KAZUAKI;HIRANO FUJIO |
分类号 |
H01M4/00 |
主分类号 |
H01M4/00 |
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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