Lithium secondary battery having positive electrode active material including lithium transition metal composite oxide with particles of rare earth compound adhered thereto
US9299984B2 · kind B2 · utility
1Cited by
2References
18Claims
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Key dates
| Filing date | Jan 4, 2011 |
| Grant date | Mar 29, 2016 |
| Priority date | — |
| Expiry date | Jul 22, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery has a positive electrode (1) containing a positive electrode active material having particles of lithium cobalt oxide, a negative electrode (2) containing a negative electrode active material having silicon particles, a separator interposed between the positive electrode (1) and the negative electrode (2), and a non-aqueous electrolyte. Particles of erbium hydroxide or erbium oxyhydroxide are adhered to a surface of the lithium cobalt oxide particles in a dispersed form.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.