发明授权
- 专利标题： Nonaqueous electrolyte solution type lithium ion secondary battery system, method for determining lithium deposition in that system, and vehicle provided with that system
- 专利标题（中）： 非水电解液型锂离子二次电池系统，该系统中锂沉积的测定方法，以及配备有该系统的车辆
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申请号： US13503393申请日： 2011-03-31
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公开(公告)号： US08843333B2公开(公告)日： 2014-09-23
- 发明人: Takayoshi Tezuka , Teruo Ishishita , Ryo Mano , Junichi Matsumoto
- 申请人： Takayoshi Tezuka , Teruo Ishishita , Ryo Mano , Junichi Matsumoto
- 申请人地址： JP Toyota-shi, Aichi-ken
- 专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人： Toyota Jidosha Kabushiki Kaisha
- 当前专利权人地址： JP Toyota-shi, Aichi-ken
- 代理机构： Finnegan, Henderson, Farabow, Garrett & Dunner, LLP
- 优先权： JP2010-091151 20100412
- 国际申请： PCT/IB2011/000697 WO 20110331
- 国际公布： WO2011/128743 WO 20111020
- 主分类号： G01R31/36
- IPC分类号： G01R31/36 ; B60L11/18
摘要：
A battery system includes a discharge amount obtaining portion that obtains a discharge amount (determination zone discharge amount) from a determination start voltage until a predetermined determination end voltage of a battery; an internal resistance obtaining portion that obtains an internal resistance value of the battery; a correlation map in which a combination of internal resistance value information and determination zone discharge amount information for a battery that is the same kind as a target of a determination and in which lithium deposition has not occurred is stored for each degree of age-related deterioration of the battery; and a deposition determining portion that determines a degree of lithium deposition in the target battery by comparing the determination zone discharge amount during the determination of the target battery with the internal resistance value during the determination of the target battery on the same scale by converting at least one via the correlation map.
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