Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Reexamination Certificate
2007-07-03
2007-07-03
Hirshfeld, Andrew H. (Department: 2858)
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
C324S425000, C324S522000, C324S433000
Reexamination Certificate
active
10523177
ABSTRACT:
A method for testing a precursor of a secondary cell with high reliability and high efficiency to judge the precursor to be acceptable or defective. The current flowing when a test voltage is applied between a pair of electrodes is measured before an electrolyte is placed between the electrodes. If a current the current value of which exceeds a predetermined reference current value (13) is detected during the time from the start of application of a voltage to a normal secondary cell precursor until the current becomes constant, the precursor is determined to be defective.
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Igaki Emiko
Imashuku Shouichi
Kume Toshiro
Shimada Mikinari
Shoji Masashi
Hamre Schumann Mueller & Larson P.C.
Hirshfeld Andrew H.
Zhu John
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