Lithium manganese-based oxide and cathode active material including the same
US9780370B2 · kind B2 · utility
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18Claims
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Key dates
| Filing date | Apr 8, 2014 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Apr 8, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a lithium manganese (Mn)-based oxide including Mn as an essential transition metal and having a layered crystal structure, in which the amount of Mn is greater than that of other transition metal(s), the lithium manganese-based oxide exhibits flat level section characteristics in which release of oxygen occurs together with lithium deintercalation during first charging in a high voltage range of 4.4 V or higher, and at least one of a transition metal layer including Mn and an oxygen layer is substituted or doped with a pillar element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.