State of charge range
US8536825B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2009 |
| Grant date | Sep 17, 2013 |
| Priority date | — |
| Expiry date | Dec 26, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0071
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A system and method for improving cycle lifetimes for a lithium-ion battery pack, particularly for adapting to a dynamic use profile for a user. A battery cell pack charging system, including a charger and a controller, for charging a lithium-ion battery cell pack, the battery cell pack charging system has a circuit for charging the battery cell pack using an adjustable charging system including an adjustable charge profile to charge the battery cell pack wherein the adjustable charge profile includes: an operational parameter identifying a next operation post-charge performance characteristic for the battery cell pack wherein a controller determines a next cycle plan for the battery cell pack that provides the performance characteristic while concurrently enhancing an attribute of the battery cell pack and wherein the attribute is measured over a plurality of applied cycles; and one or more charging stages to produce an energy ending point for the plan; wherein the adjustable charge plan is implemented by the charger in anticipation of a post-charging operation associated with the operational parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.