发明名称 |
CAPACITY ESTIMATION METHOD, DEGRADATION ESTIMATION METHOD AND DEGRADATION ESTIMATION APPARATUS FOR Li-ION CELL, AND Li-ION BATTERY |
摘要 |
PURPOSE: Provided are a capacity estimation method, a degradation estimation method and a degradation estimation apparatus for the lithium-ion cell, and the lithium-ion battery. CONSTITUTION: In the first capacity estimation method for a Li-ion cell, 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 the Li-ion cell. In the second capacity estimation method, 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. In the third capacity estimation method, 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. |
申请公布号 |
KR20030051457(A) |
申请公布日期 |
2003.06.25 |
申请号 |
KR20030024354 |
申请日期 |
2003.04.17 |
申请人 |
NIPPON TELEGRAPH AND TELEPHONE CORPORATION |
发明人 |
ASAKURA KAORU;HIRAI TOSHIRO |
分类号 |
H01M10/42;G01R31/36;H01M10/48;H02M3/07 |
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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