Device for detecting failure of battery cells by comparing the s

Details Device for detecting failure of battery cells by comparing the s Device for detecting failure of battery cells by comparing the s

1993-07-16

1995-07-11

Wieder, Kenneth A.

Electricity: measuring and testing

Electrolyte properties

Using a battery testing device

324426, 320 48, 340636, G01N 27416, H02J 704

Patent

active

054324521

ABSTRACT:
Failure of one or more battery cells, for example of an inverter battery bank, is detected by monitoring the second derivative of the curve U(t) representative of the voltage U at the terminals of the battery in the course of discharge. If the second derivative is positive, this is significant of a failure.

REFERENCES:
patent: 4322685 (1982-03-01), Frailing et al.
patent: 5027294 (1991-06-01), Fakruddin et al.
patent: 5061898 (1991-10-01), Oram et al.
patent: 5166623 (1992-11-01), Ganio
patent: 5278509 (1994-01-01), Haynes et al.

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