Lithium secondary battery
US11063290B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Jun 21, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery prepared to a negative electrode free battery, and forming lithium metal on a negative electrode current collector through charge. The lithium secondary battery forms lithium metal while being blocked from the atmosphere, and since production of a surface oxide layer (native layer) formed on an existing negative electrode is fundamentally blocked, resulting battery efficiency and lifetime property decline may be prevented.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.