发明名称 |
STATUS DETERMINING METHOD FOR SECONDARY BATTERY, STATUS DETERMINING APPARATUS FOR SECONDARY BATTERY, SECONDARY BATTERY SYSTEM, AND CHARGE/DISCHARGE CONTROL APPARATUS HAVING STATUS DETERMINING APPARATUS |
摘要 |
To accurately determine a deterioration state of a secondary battery with respect to a practical current value. Provided are a state determination device of a secondary battery, a state determination method of a secondary battery, a secondary battery system, and a charge and discharge control apparatus having the state determination device. In the state determination device of the secondary battery having a positive electrode and a negative electrode, a capacity reduction parameter group A is determined based on charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode and a current value A, and a resistance increase parameter group B is determined based on the charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode, the capacity reduction parameter group A, and a current value B which is larger than the current value A. |
申请公布号 |
US2016204639(A1) |
申请公布日期 |
2016.07.14 |
申请号 |
US201314915989 |
申请日期 |
2013.09.25 |
申请人 |
HITACHI, LTD. |
发明人 |
HONKURA Kohei;OKUYAMA Yutaka |
分类号 |
H02J7/00;G01R31/36;H01M10/48 |
主分类号 |
H02J7/00 |
代理机构 |
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代理人 |
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主权项 |
1. A state determination device of a secondary battery having a positive electrode and a negative electrode, wherein
a capacity reduction parameter group A is determined based on charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode and a current value A, and a resistance increase parameter group B is determined based on the charge and discharge characteristics per reference quantity of the positive electrode and the negative electrode, the capacity reduction parameter group A, and a current value B which is larger than the current value A. |
地址 |
Tokyo JP |