Lithium secondary battery
US7659034B2 · kind B2 · utility
24Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2004 |
| Grant date | Feb 9, 2010 |
| Priority date | — |
| Expiry date | Apr 12, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Charge-discharge cycle performance is improved in a lithium secondary battery including a negative electrode containing a negative electrode active material having silicon as its main component, provided on a surface of a current collector, a positive electrode containing a positive electrode active material, and a non-aqueous electrolyte. The positive electrode active material is a lithium transition metal oxide containing Li and Co and having a layered structure, and further containing a group IVA element of the periodic table, such as Zr, Ti, or Tf, and a group IIA element of the periodic table, such as Mg.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.