发明授权
- 专利标题: Method for opportunistically balancing charge between battery cells
- 专利标题(中): 机会平衡电池单元电荷的方法
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申请号: US14003051申请日: 2012-03-07
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公开(公告)号: US09450426B2公开(公告)日: 2016-09-20
- 发明人: Brian C. Moorhead , Brian D. Rutkowski
- 申请人: Brian C. Moorhead , Brian D. Rutkowski
- 申请人地址: US MA Waltham
- 专利权人: A123 Systems LLC
- 当前专利权人: A123 Systems LLC
- 当前专利权人地址: US MA Waltham
- 代理机构: Alleman Hall McCoy Russell & Tuttle LLP
- 国际申请: PCT/US2012/028039 WO 20120307
- 国际公布: WO2012/122250 WO 20120913
- 主分类号: H02J7/00
- IPC分类号: H02J7/00 ; H01M10/44
摘要:
Systems and methods for balancing battery cells of a battery pack are disclosed. In one example, a charge imbalance is determined while battery cells operate in a high charge resolution voltage range. The charge imbalance determined during operation in the high charge resolution voltage range may be removed when the battery cells are operated in a low charge resolution voltage range. The system and method may be particularly useful for balancing battery cells that operate in the low charge resolution voltage range for a large portion of their operating time.
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