Positive electrode active materials with composite coatings for high energy density secondary batteries and corresponding processes
US10193135B2 · kind B2 · utility
4Cited by
22References
28Claims
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Key dates
| Filing date | Jan 14, 2016 |
| Grant date | Jan 29, 2019 |
| Priority date | — |
| Expiry date | May 4, 2036 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composite coated form of lithium cobalt oxide is described that can achieve improved cycling at higher voltages. Liquid phase and combined liquid and solid phase coating processes are described to effectively form the composite coated powders. The improved cycling positive electrode materials can be effectively combined with either graphitic carbon negative electrode active materials or silicon based high capacity negative electrode active materials. Improved battery designs can achieve very high volumetric energy densities in practical battery formats and with reasonable cycling properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.