Positive electrode active material for lithium ion secondary battery
US8916295B2 · kind B2 · utility
5Cited by
1References
3Claims
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Key dates
| Filing date | Feb 28, 2012 |
| Grant date | Dec 23, 2014 |
| Priority date | — |
| Expiry date | Feb 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The positive electrode active material includes a compound represented by the following composition formula:[Li1.5][Li0.5(1-x)Mn1-xM1.5x]O3 (wherein x satisfies 0.1≦x≦0.5, and M is represented by NiαCoβMnγ in which α, β and γ satisfy 0<α≦0.5, 0≦β≦0.33 and 0<γ≦0.5, respectively), wherein a half width of the peak of a (001) crystal plane of the compound measured by X-ray diffraction is in a range from 0.14 to 0.33 inclusive, and an average primary particle diameter of the compound is in a range from 0.03 μm to 0.4 μm inclusive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.