System and method for maximizing battery capacity while in long term storage
US10608446B1 · kind B1 · utility
2Cited by
3References
18Claims
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Key dates
| Filing date | Sep 19, 2018 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | Sep 19, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
When in long term storage, battery degradation is avoided by performing battery charge cycles at a voltage level where a change in the battery's voltage divided by a change in the battery's storage capacity is at a minimum, rather than discharging the battery to its minimum storage capacity and then charging to its maximum storage capacity. Further, based on physical and practical limitations, such battery charge cycles can instead be performed within a range or delta Depth of Discharge (“DOD”) and corresponding battery voltage levels rather than at a single voltage level, while still avoiding battery degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.