发明名称 |
APPARATUS AND METHOD FOR ESTIMATING PARAMETER OF SECONDARY BATTERY |
摘要 |
Disclosed is an apparatus and method for estimating a parameter of a secondary battery. The apparatus according to the present disclosure includes a sensor means configured to measure a plurality of current-voltage data while a charging current decreases when a secondary battery is charged in such a pattern that the charging current increases to a peak value and then decreases, and a control means configured to receive an input of the plurality of current-voltage data from the sensor means, calculate a linear approximation equation representing a correlation between a current and a voltage from the plurality of current-voltage data, and estimate a Y intercept of the linear approximation equation as an open-circuit voltage of the secondary battery. |
申请公布号 |
US2015051854(A1) |
申请公布日期 |
2015.02.19 |
申请号 |
US201414530979 |
申请日期 |
2014.11.03 |
申请人 |
LG CHEM, LTD. |
发明人 |
JOE Won-Tae;CHA Sun-Young |
分类号 |
G01R31/36 |
主分类号 |
G01R31/36 |
代理机构 |
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代理人 |
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主权项 |
1. An apparatus for estimating a parameter of a secondary battery, the apparatus comprising:
a sensor means configured to measure a plurality of current-voltage data while a charging current decreases when a secondary battery is charged in such a pattern that the charging current increases to a peak value and then decreases; and a control means configured to receive an input of the plurality of current-voltage data from the sensor means, calculate a linear approximation equation representing a correlation between a current and a voltage from the plurality of current-voltage data, and estimate a Y intercept of the linear approximation equation as an open-circuit voltage of the secondary battery. |
地址 |
Seoul KR |