Lithium-titanium complex oxide, and battery electrode and lithium ion secondary battery using same
US8758940B2 · kind B2 · utility
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Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Dec 14, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium-titanium complex oxide containing Li4Ti5O12 is characterized in that, based on SEM observation, the number-based percentage of particles whose size is less than 0.1 μm is 5 to 15% or 40 to 65%, the number-based percentage of particles whose size is 0.3 to 1.5 μm is 15 to 30%, the specific surface area measured by the BET method is 5.8 to 10.1 m2/g, and the average particle size D50 according to the particle size distribution measured by laser diffraction measurement is preferably 0.6 to 1.5 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.