Invention Grant
- Patent Title: Controlling battery charging based on current, voltage and temperature
- Patent Title (中): 根据电流,电压和温度控制电池充电
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Application No.: US12480581Application Date: 2009-06-08
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Publication No.: US08624560B2Publication Date: 2014-01-07
- Inventor: P. Jeffrey Ungar , Thomas C. Greening , William C. Athas , J. Douglas Field , Richard M. Mank
- Applicant: P. Jeffrey Ungar , Thomas C. Greening , William C. Athas , J. Douglas Field , Richard M. Mank
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Park, Vaughan, Fleming & Dowler LLP
- Main IPC: H02J7/04
- IPC: H02J7/04 ; H02J7/00

Abstract:
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.
Public/Granted literature
- US20090273320A1 CONTROLLING BATTERY CHARGING BASED ON CURRENT, VOLTAGE AND TEMPERATURE Public/Granted day:2009-11-05
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