发明名称 |
REVERSIBLE CAPACITY ESTIMATION METHOD OF NONAQUEOUS ELECTROLYTE SECONDARY BATTERY, LIFE PREDICTION METHOD, REVERSIBLE CAPACITY ESTIMATION METHOD, LIFE PREDICTION DEVICE AND POWER STORAGE SYSTEM |
摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reversible capacity estimation method of a nonaqueous electrolyte secondary battery capable of precisely and easily measuring a deteriorated state of the nonaqueous electrolyte secondary battery such as a lithium ion secondary battery in the long term. <P>SOLUTION: In the reversible capacity estimation method, the reversible capacity which is a capacity capable of charging and discharging a secondary battery 200 is estimated by a computer. This method includes: an acquisition step of acquiring an AC impedance at a predetermined frequency in the secondary battery 200 (S204); and an estimation step (S206) of estimating the reversible capacity by using the acquired AC impedance and a linear relational expression showing the relationship between the AC impedance and the reversible capacity (S206). <P>COPYRIGHT: (C)2012,JPO&INPIT |
申请公布号 |
JP2012122817(A) |
申请公布日期 |
2012.06.28 |
申请号 |
JP20100273038 |
申请日期 |
2010.12.07 |
申请人 |
GS YUASA CORP |
发明人 |
OGAWA DAISUKE;YAMATE SHIGEKI;KATAYAMA YOSHIHIRO |
分类号 |
G01R31/36;H01M10/48 |
主分类号 |
G01R31/36 |
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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