Methods for preparing materials for lithium ion batteries
US8591774B2 · kind B2 · utility
11Cited by
1References
19Claims
0Family size
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Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Nov 26, 2013 |
| Priority date | — |
| Expiry date | Aug 4, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A process for preparing transition metal particles with a gradient in composition from the core of the particle to the outer layers. In particular, the process involves contacting a first transition metal solution with a second transition metal solution to form a transition metal source solution under specific process conditions. The transition metal particles with desired composition gradients are precipitated from the transition metal source solution. The transition metal particles may be combined with metals such as lithium to form cathode active metal oxides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.