Nonaqueous electrolyte secondary battery
US7056622B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2002 |
| Grant date | Jun 6, 2006 |
| Priority date | — |
| Expiry date | Oct 7, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A nonaqueous electrolyte secondary battery according to the invention comprises a positive electrode containing a positive electrode active material including lithium containing composite oxide having a layer crystal structure represented by a general formula of LixMnaCobMcO2 (0.9≦X≦1.1, 0.45≦a≦0.55, 0.45≦b≦0.55, 0<c≦0.05 and 0.9<a+b+c≦1.1 are set and M is at least one kind selected from Al, Mg, Sn, Ti and Zr), a negative electrode containing a negative electrode active material capable of intercalating and deintercalating lithium ion, a separator for separating the positive electrode from the negative electrode, and a nonacqueous electrolyte.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.