Electricity: measuring and testing – Electrolyte properties – Using a battery testing device
Patent
1995-11-06
1997-10-07
Karlsen, Ernest F.
Electricity: measuring and testing
Electrolyte properties
Using a battery testing device
324427, 324431, 340636, 320 48, G01N 27416
Patent
active
056752580
ABSTRACT:
In a method of detecting deterioration of a battery pack consisting of a series assembly of a plurality of battery modules during charging, on the basis of a voltage difference between a plurality of battery modules, deterioration detection is inhibited until a predetermined capacity is charged after starting of the charge. Also, in a detection apparatus for deterioration in a battery pack according to the present invention, a deterioration reference discharge voltage value which should correspond to a discharge current value and a temperature value is calculated on the basis of reference data, and the deterioration reference discharge voltage value is compared with an actual discharge voltage value to judge whether deterioration occurs or not.
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patent: 5539318 (1996-07-01), Sasaki
Ito Noboru
Kadouchi Eiji
Kinoshita Megumi
Takata Kanji
Watanabe Yuichi
Do Diep
Karlsen Ernest F.
Matsushita Electric Industry Co., Ltd.
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