Carbonate precursors for high lithium and manganese containing cathode materials
US9972843B2 · kind B2 · utility
1Cited by
4References
17Claims
0Family size
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Key dates
| Filing date | Aug 21, 2014 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Dec 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A carbonate precursor compound of a lithium manganese based oxide powder for a positive electrode of a rechargeable battery, the oxide having the general formula Li1+vM1−vO2, wherein −0.03≤v≤0.25, wherein M is a composition comprising at least 50 mol % of manganese, and wherein the carbonate precursor compound has a secondary particle size D50 expressed in μm, and a tap density TD expressed in g/cm3, with either 1≤TD≤(2.78*D50)/(D50+7.23) and the compound having a particle size distribution having a span S≤1.8 with S=(D90−D10)/D50; or 1≤TD≤(2.78*D50)/(D50+7.50).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.