发明名称 |
Capacity estimation method, degradation estimation method and degradation estimation apparatus for lithium-ion cells, and lithium-ion batteries |
摘要 |
A capacity estimation method for a Li-ion cell is provided. In the method, according to a first aspect, an elapsed time from the time when charge voltage in constant current charge reaches a predetermined voltage to the time when charge condition is changed to a constant voltage mode is used for calculating an estimated capacity of said Li-ion cell. According to a second aspect, a charge current after a lapse of a predetermined time from the time when charge condition is changed to a constant voltage mode is used. According to a third aspect an elapsed time from the time when charge condition is changed to a constant voltage mode to the time when charge current becomes alpha (0<alpha<1) times is used.
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申请公布号 |
US2001022518(A1) |
申请公布日期 |
2001.09.20 |
申请号 |
US20010804503 |
申请日期 |
2001.03.12 |
申请人 |
ASAKURA KAORU;HIRAI TOSHIRO |
发明人 |
ASAKURA KAORU;HIRAI TOSHIRO |
分类号 |
H01M10/42;G01R31/36;H01M10/48;H02M3/07;(IPC1-7):G01N27/416 |
主分类号 |
H01M10/42 |
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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