Electrode conductive material
US6447699B1 · kind B1 · utility
2Cited by
3References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 27, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Mar 28, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrode conductive material includes a non-stoichiometric oxidized cobalt compound whose electrical conductivity is greater than 5×10−3 S/cm and which has a direct spinel structure and formula Co2+xCo3+yO4, with 0.73≦≦0.80 and 1.87≦y≦1.95. An alkaline electrolyte secondary storage cell positive electrode includes a current collector and a layer containing a binder, particles of an electrochemically active material and the aforementioned conductive material, the proportion by weight of the conductive material in the layer being from 4% to 10% of the active material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.