发明名称 |
METHOD FOR ESTIMATING LIFE OF, METHOD FOR SUPPRESSING DETERIORATION OF, DEVICE FOR ESTIMATING LIFE OF AND DEVICE FOR SUPPRESSING DETERIORATION OF LITHIUM SECONDARY BATTERY, AND BATTERY PACK AND CHARGER USING THE SAME |
摘要 |
Disclosed is a lifetime estimating method for a lithium secondary cell, in which the voltage of the lithium secondary cell charged and discharged by different cycle numbers as a charging-discharging cycle has elapsed is detected at least two times at an open-circuit time after the discharge. At least two of the individual voltage values are plotted against the individual cycle numbers. An arc passing through the individual plot points is drawn so that the lifetime of the lithium secondary cell is estimated on the basis of the size of that arc. The progress of the deterioration can be suppressed by controlling the charge and discharge of the lithium secondary cell on the basis of that lifetime estimation. ® KIPO & WIPO 2009 |
申请公布号 |
KR20090087452(A) |
申请公布日期 |
2009.08.17 |
申请号 |
KR20097010305 |
申请日期 |
2008.12.11 |
申请人 |
PANASONIC CORPORATION |
发明人 |
UGAJI MASAYA;YAMAMOTO TAISUKE |
分类号 |
H01M10/48;G01R31/36;H01M4/48;H01M4/58;H01M10/44 |
主分类号 |
H01M10/48 |
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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