Method for improving lifespan of lithium secondary battery
US11322811B2 · kind B2 · utility
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Key dates
| Filing date | Nov 6, 2018 |
| Grant date | May 3, 2022 |
| Priority date | — |
| Expiry date | Aug 30, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method for enhancing a lifetime of a lithium secondary battery including manufacturing a battery by injecting an electrolyte liquid to an electrode assembly-embedded battery; and charging and discharging the manufactured battery; and additionally injecting an electrolyte liquid earlier than half a cycle point with respect to the number of charge and discharge cycles reaching discharge capacity of 80% compared to initial capacity is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.