System and method of limiting degradation of the battery by prohibiting over-charge with measured temperatures
US8237408B2 · kind B2 · utility
2Cited by
1References
15Claims
0Family size
Inventors
Key dates
| Filing date | Jan 22, 2010 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Jan 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/007194
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A battery charging apparatus and method adapted to reduce battery capacity as a function of increased temperature thereby permitting partial charges at temperatures in excess of manufacturer's recommendations. The method includes steps of reducing charging current and charging voltage as a function of battery temperature thereby averting chemical instability within the battery. The apparatus detects battery temperature and includes a controller that will control charger voltage and current as a function of temperature and determine a suitable charging capacity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.