- 专利标题： Detecting method and detecting apparatus for detecting internal of rechargeable battery, rechargeable battery pack having said detecting apparatus therein, apparatus having said detecting apparatus therein, program in which said detecting method is incorporated, and medium in which said program is stored
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申请号： US11656995申请日： 2007-01-24
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公开(公告)号： US20070120554A1公开(公告)日： 2007-05-31
- 发明人: Soichiro Kawakami , Yasusaburo Degura
- 申请人： Soichiro Kawakami , Yasusaburo Degura
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 优先权： JP2002-298171 20021011
- 主分类号： G01R19/14
- IPC分类号： G01R19/14
摘要：
A detecting method for detecting internal resistance of an inspective rechargeable battery when said inspective rechargeable battery is charged by the constant current-constant voltage charging regime, said detecting method comprising at least a step (a) wherein an accumulated, charged electricity quantity of said inspective rechargeable battery in the constant voltage charging mode is obtained and a step (b) wherein said charged electricity quantity of said inspective rechargeable battery obtained in the constant voltage charging mode in said step (a) is referred to previously acquired data of a normal rechargeable battery, which corresponds to said inspective rechargeable battery, with respect to relationships of charged electricity quantities Qcv thereof versus internal resistances thereof when increased or decreased or their increased or decreased magnitudes in the constant voltage charging mode.