发明授权
- 专利标题: Controlling battery charging based on current, voltage and temperature
- 专利标题(中): 根据电流,电压和温度控制电池充电
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申请号: US12480581申请日: 2009-06-08
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公开(公告)号: US08624560B2公开(公告)日: 2014-01-07
- 发明人: P. Jeffrey Ungar , Thomas C. Greening , William C. Athas , J. Douglas Field , Richard M. Mank
- 申请人: P. Jeffrey Ungar , Thomas C. Greening , William C. Athas , J. Douglas Field , Richard M. Mank
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Park, Vaughan, Fleming & Dowler LLP
- 主分类号: H02J7/04
- IPC分类号: H02J7/04 ; H02J7/00
摘要:
Some embodiments of the present invention provide a system that charges a lithium-ion battery. During operation, the system monitors: a current through the battery, a voltage of the battery, and a temperature of the battery. Next, the system uses the monitored current, voltage and temperature to control a charging process for the battery. In some embodiments, controlling the charging process involves: inferring electrode lithium surface concentrations for the battery from the monitored current, voltage and temperature; and applying the charging current and/or the charging voltage in a manner that maintains the inferred electrode lithium surface concentrations for the battery within set limits.
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