Nonaqueous secondary battery
US6090506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 1, 1997 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | Aug 1, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a nonaqueous secondary battery having a high discharge potential, a high discharge capacity, a good charge-discharge cycle characteristics and good high current charge-discharge characteristics. That is, a novel nonaqueous secondary battery is disclosed, comprising a sheet-shaped positive electrode having at least one layer containing a lithium-containing transition metal compound as a positive electrode material, a sheet-shaped negative electrode having at least one layer containing a negative electrode material capable of intercalating and deintercalating a lithium ion, a porous separator comprising polyolefines, and a nonaqueous electrolyte containing a lithium salt, wherein at least one of said sheet-shaped negative electrode and said sheet-shaped positive electrode comprises three or more layers applied to a current collector and the two layers furthest from said current collector each contain an insulating solid fine particle which doesn't substantially intercalate and deintercalate a lithium ion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.