Lithium secondary battery
US10476079B2 · kind B2 · utility
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13Claims
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Key dates
| Filing date | Nov 20, 2015 |
| Grant date | Nov 12, 2019 |
| Priority date | — |
| Expiry date | Nov 20, 2035 |
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 comprises a cathode, an anode and a non-aqueous electrolyte. The cathode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient from a core part to a surface part thereof, and is doped with transitional metal. The lithium-metal oxide includes elements M1, M2 and M3. One of M1, M2 and M3 has a concentration gradient range in which a concentration increases from the core part to the surface part.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.