Lithium secondary battery
US10454134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2016 |
| Grant date | Oct 22, 2019 |
| Priority date | — |
| Expiry date | Aug 9, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery including a cathode electrode, an anode electrode, and a separation film installed between the cathode electrode and the anode electrode, wherein the cathode electrode includes a cathode active material containing lithium-metal oxide of which at least one of metals has a continuous concentration gradient region between a core part and a surface part thereof, the anode electrode includes a ceramic coating layer on at least one surface thereof, and the separation film includes a base film, and a ceramic coating layer formed on at least one surface of the base film, such that it is possible to achieve a significantly improved effect in both of the lifespan property and penetration durability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.