Apparatus and method for determining the capacity of a nickel-cadmium battery
US5926008A · kind A · utility
10Cited by
1References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1998 |
| Grant date | Jul 20, 1999 |
| Priority date | — |
| Expiry date | Sep 15, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3835
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention provides for a timesaving method of determining the capacity of a nickel cadmium (NiCd). A fully charged NiCd battery under is subjected to a positive sloped current charge ramp and then a negative sloped current charge ramp while continuously monitoring the battery terminal voltage. The voltage is plotted and the maximum slope of the measured terminal voltage determines l.sub.gas. The value of I.sub.gas is compared to a temperature calibration curve to determine the capacity of the battery under test.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.