Method and device for determining the charge of a battery

Details Method and device for determining the charge of a battery Method and device for determining the charge of a battery

2004-09-24

2009-06-02

Ullah, Akm E (Department: 2838)

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

C324S427000, C324S430000

Reexamination Certificate

active

07541814

ABSTRACT:
A method and device for determining the charge of a battery, characterized in that a gain crossover frequency (f±) for an impedance of the battery excited by an alternating current signal is established, and the gain crossover frequency (f±) is assigned to the charge of the battery, whereby the gain crossover frequency (f±) is a frequency of the alternating current signal at which an imaginary portion of the impedance of the battery vanishes.

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International Preliminary Report on Patentability in PCT/EP2004/010783 dated Jun. 12, 2006.

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