Particulate mixture, active material aggregate, cathode active material, cathode, secondary battery and methods for producing the same
US8696949B2 · kind B2 · utility
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Key dates
| Filing date | Aug 28, 2012 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Oct 16, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A particulate mixture which can be used as a precursor of lithium transition metal silicate-type compound of small particle size and low crystallinity, is provided. It is a mixture of silicon oxide particulates, transition metal oxide particulates, and lithium transition metal silicate particulates, and its powder X-ray diffraction measurement shows diffraction peaks near 2θ=33.1° and near 2θ=35.7°, and said silicon oxide particulates and said transition metal oxide particulates are amorphous, and said lithium transition metal silicate particulates are in a microcrystalline or amorphous state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.