Nonaqueous electrolyte secondary battery
US9105944B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 12, 2011 |
| Grant date | Aug 11, 2015 |
| Priority date | — |
| Expiry date | Jan 18, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/70
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
According to one embodiment, a nonaqueous electrolyte secondary battery includes a nonaqueous electrolytic solution, a positive electrode and a negative electrode is provided. The nonaqueous electrolytic solution comprises a nonaqueous solvent. The nonaqueous solvent comprises from 50 to 95% by volume of a sulfone-based compound represented by the following formula 1:wherein R1 and R2 are each an alkyl group having 1 to 6 carbon atoms and satisfy R1≠R2. The positive electrode comprises a composite oxide represented by Li1-xMn1.5-yNi0.5-zMy+zO4. The negative electrode comprises a negative electrode active material being capable of absorbing and releasing lithium at 1 V or more based on a metallic lithium potential.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.