Battery with coulometric state of charge indicator
US5418086A · kind A · utility
65Cited by
13References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 1993 |
| Grant date | May 23, 1995 |
| Priority date | — |
| Expiry date | Aug 9, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A thin film coulometer for use as a battery state of charge indicator in which the indicator is located on a battery and connected in parallel across a current path of a resistive segment of the battery so that during discharge, the coulometer can be observed to indicate the capacity of the battery. The coulometric charge indicator device may have a variable thickness construction and include indicia which are produced upon battery discharge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.