Positive electrode active substance for lithium cell
US8029929B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Jun 20, 2005 |
| Grant date | Oct 4, 2011 |
| Priority date | — |
| Expiry date | Apr 16, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A positive electrode active material for a lithium battery is provided which offers high-temperature storage property and battery properties and comprises manganese dioxide having a crystal structure that exhibits an X-ray diffraction pattern in which peaks having a peak intensity ratio of not less than 0.05 with respect to the peak at 2θ=37.3°±0.5° are present at positions of 2θ=18.2°±0.5°, 19.5°±0.5°, 28.6°±0.5°, 56.6°±0.5°, 59.1°±0.5°, and 65.1°±0.5°, or further at 2θ=22.0°±1.0°, the X-ray diffraction pattern being obtained using a powder X-ray diffraction device (XRD) that uses CuKα1 rays.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.