发明名称 |
Lithium rechargeable battery with functional center pin |
摘要 |
Lithium rechargeable batteries having functional center pins are provided. A lithium rechargeable battery has a center pin having a compressed compression spring positioned within a thermal cut-off composition to reduce the void volume inside a bare cell during initial overcharge. The thermal cut-off composition melts at a temperature within a specific temperature range, e.g. between about 80° C. and about 250° C. This prevents the battery from exploding and igniting. Thus, the inventive lithium rechargeable batteries have improved thermal stability.
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申请公布号 |
US7749642(B2) |
申请公布日期 |
2010.07.06 |
申请号 |
US20090470440 |
申请日期 |
2009.05.21 |
申请人 |
SAMSUNG SDI CO., LTD. |
发明人 |
CHANG SEOK GYUN;HYUNG YOO EUP;KIM JUNG SEOG;YUN YOUNG EUN |
分类号 |
H01M2/12;H01M10/0587;H01M10/38;H01M10/50 |
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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