Lithium secondary battery positive electrode and lithium secondary battery
US9065116B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Jun 23, 2015 |
| Priority date | — |
| Expiry date | May 18, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium secondary battery positive electrode according to the present invention is a lithium secondary battery positive electrode including a positive electrode material mixture layer containing a positive electrode active material and a conductivity enhancing agent on one or both sides of a current collector, wherein the positive electrode active material contains a lithium-containing composite oxide, the conductivity enhancing agent contains carbon fibers having an average fiber length of 10 nm or more and less than 1000 nm and an average fiber diameter of 1 nm or more and 100 nm or less, and the content of the carbon fibers in the positive electrode material mixture layer is 0.25 mass % or more and 1.5 mass % or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.