Positive electrode active material for secondary battery, and secondary battery including the same
US10177386B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Nov 23, 2016 |
| Grant date | Jan 8, 2019 |
| Priority date | — |
| Expiry date | Nov 23, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a positive electrode active material for a lithium secondary battery which is capable of preventing the degeneration of a positive electrode active material and the generation of a gas during operating a battery due to humidity, by including a surface treatment layer of an amorphous glass including an alkali metal oxide and an alkaline earth metal oxide on the surface of a core including a lithium composite metal oxide and by decreasing humidity reactivity, and a secondary battery including the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.