Method for cell balancing for lithium battery systems
US7193391B2 · kind B2 · utility
27Cited by
4References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 12, 2004 |
| Grant date | Mar 20, 2007 |
| Priority date | — |
| Expiry date | Sep 21, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A rechargeable multiple cell battery pack has an application associated therewith that draws power from the battery pack. While the battery pack is in operation, voltage, current, state-of-charge (SOC), and impedance data are collected on a per-cell basis and an algorithm is performed to determine a state-of-charge for each individual cell of the battery pack consistent with predetermined criteria. The individual cells are charged to the respective, determined state-of-charge (SOC) levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.