发明名称 |
Rechargeable battery device equipped with life determination function |
摘要 |
A rechargeable battery device includes battery voltage detection means which detects the terminal voltage of a rechargeable battery comprising a nickel hydride metal battery and switching means which switches on and off the charging current of the rechargeable battery continuously or intermittently. A value corresponding to the internal resistance R of the rechargeable battery is determined from the battery voltage Von immediately before the charging current is switched off and the open battery voltage Voff after the charging current is switched off. The value Z(int) corresponding to the early-stage internal resistance R of the rechargeable battery and the value Z(now) corresponding to the latest internal resistance R of the rechargeable battery are compared to determine the operation life of the rechargeable battery.
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申请公布号 |
US2003085690(A1) |
申请公布日期 |
2003.05.08 |
申请号 |
US20020284101 |
申请日期 |
2002.10.31 |
申请人 |
SANYO ELECTRIC CO., LTD. |
发明人 |
SHIOJIMA NOBUO |
分类号 |
H02J7/00;(IPC1-7):H02J7/00;H02J7/06;H02J7/24 |
主分类号 |
H02J7/00 |
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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