Non-aqueous electrolyte secondary battery
US7468225B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 31, 2005 |
| Grant date | Dec 23, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A non-aqueous electrolyte secondary battery including a positive electrode and a negative electrode each capable of absorbing and desorbing lithium, a separator interposed therebetween, and a non-aqueous electrolyte, wherein the positive electrode includes a positive electrode active material represented by: LiM1-xLxO2 where 0.005≦x≦0.1 is satisfied, M is at least one selected from the group consisting of Mn, Co and Ni, and L is at least one selected from the group consisting of Mg, Al, Ti, Sr, Zn, B, Ca, Cr, Si, Ga, Sn, P, V, Sb, Nb, Ta, Mo, W, Zr, Y and Fe, and the non-aqueous electrolyte includes a phosphinate compound represented by:where R1, R2 and R3 are each independently an aryl group, or an alkyl group, an alkenyl group or an alkynyl group each having 1 to 5 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.