Method for detecting working condition of non-aqueous electrolyt

Details Method for detecting working condition of non-aqueous electrolyt Method for detecting working condition of non-aqueous electrolyt

1998-06-24

1999-11-30

Tso, Edward H.

Electricity: battery or capacitor charging or discharging

Battery or cell discharging

With charging

320136, H01M 1044

Patent

active

059948779

ABSTRACT:
The present invention provides methods for detecting a working condition of a non-aqueous electrolyte secondary battery which allow easy and accurate determination of the degree of degradation and remaining capacity of the non-aqueous electrolyte secondary battery by a simple test irrespective of the past charging and discharging history of the battery. In the methods of the present invention, the degree of degradation of battery is quantitatively determined on the basis of the voltage value in charging or discharging at a constant current, or from an equation with that voltage value as variable.

REFERENCES:
patent: 5148043 (1992-09-01), Hirata et al.
patent: 5404106 (1995-04-01), Matsuda
patent: 5483165 (1996-01-01), Cameron et al.
patent: 5606240 (1997-02-01), Kokuga et al.

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