发明公开
EP2269280A1 DIFFUSION-LIMITED ADAPTIVE BATTERY CHARGING 有权
扩散限制自适应电池充电

  • 专利标题: DIFFUSION-LIMITED ADAPTIVE BATTERY CHARGING
  • 专利标题(中): 扩散限制自适应电池充电
  • 申请号: EP09729778.2
    申请日: 2009-04-08
  • 公开(公告)号: EP2269280A1
    公开(公告)日: 2011-01-05
  • 发明人: GREENING, Thomas, C.UNGAR, P., JeffreyATHAS, William, C.
  • 申请人: APPLE INC.
  • 申请人地址: 1 Infinite Loop Cupertino, CA 95014 US
  • 专利权人: APPLE INC.
  • 当前专利权人: APPLE INC.
  • 当前专利权人地址: 1 Infinite Loop Cupertino, CA 95014 US
  • 代理机构: Barnfather, Karl Jon
  • 优先权: US44160 20080411; US89246 20080815; US242641 20080930
  • 国际公布: WO2009126734 20091015
  • 主分类号: H02J7/00
  • IPC分类号: H02J7/00 H01M10/44
DIFFUSION-LIMITED ADAPTIVE BATTERY CHARGING
摘要:
Some embodiments of the present invention provide a system that adaptively charges a battery, wherein the battery is a lithium-ion battery which includes a transport-limiting electrode governed by diffusion, an electrolyte separator and a non-transport-limiting electrode. During operation, the system determines a lithium surface concentration at an interface between the transport-limiting electrode and the electrolyte separator based on a diffusion time for lithium in the transport-limiting electrode. Next, the system calculates a charging current or a charging voltage for the battery based on the determined lithium surface concentration. Finally, the system applies the charging current or the charging voltage to the battery.
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