High voltage positive electrode active material including lithium manganese-based oxide and method for producing the same
US11600820B2 · kind B2 · utility
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Key dates
| Filing date | Sep 7, 2018 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material contains a lithium-rich lithium manganese-based oxide, wherein the lithium manganese-based oxide has a composition of the following chemical formula (1), and wherein a lithium ion conductive glass-ceramic solid electrolyte layer containing at least one selected from the group consisting of thio-LISICON(thio-lithium super ionic conductor), LISICON(lithium super ionic conductor), Li2S—SiS2—Li4SiO4, and Li2S—SiS2—P2S5—Lil is formed on the surface of the lithium manganese-based oxide particle: Li1−xMyMn1−x−yO2−zQz (1)
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.