On-line battery impedance measurement
US5281920A · kind A · utility
227Cited by
20References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 21, 1992 |
| Grant date | Jan 25, 1994 |
| Priority date | — |
| Expiry date | Aug 21, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/3842
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Impedance measurement of battery cells within a battery system comprising at least one string of battery cells is accomplished by dividing each of the strings into at least two portions. A loading current for measurement purposes is only imposed on a portion of one of the strings at any given time and battery cell voltage measurements are made only within this string portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.