Process for balanced charging of a lithium ion or lithium polymer battery
US7880444B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 10, 2006 |
| Grant date | Feb 1, 2011 |
| Priority date | — |
| Expiry date | Jun 11, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method for the balanced charging of n cells which form a lithium-ion or lithium-polymer battery and which are connected in series. The invention is characterised in that the method consists in monitoring the charge levels of the different cells (1) from the moment (t1) following the beginning of the battery (2) charging operation until said operation ends normally or is interrupted; and, as a function of the pre-evaluation of said charge levels, either powering of all the cells (1) uniformly or balancing the cell (1) charge levels by powering same in a differentiated manner as a function of the current charge levels thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.