Detecting method and detecting apparatus for detecting...

Details Detecting method and detecting apparatus for detecting... Detecting method and detecting apparatus for detecting...

2008-06-17

2008-06-17

Berhane, Adolf (Department: 2838)

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

C702S063000

Reexamination Certificate

active

07388383

ABSTRACT:
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 Qcvthereof versus internal resistances thereof when increased or decreased or their increased or decreased magnitudes in the constant voltage charging mode.

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