Cathode for an electrochemical cell and an electrochemical cell
US4288506A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 5, 1979 |
| Grant date | Sep 8, 1981 |
| Priority date | — |
| Expiry date | Sep 5, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode for an electrochemical cell is disclosed, and a cell including it, together with an active cathode current collector for use in an electrochemical cell and methods of forming such a cathode. The cathode in its discharged state comprises an intermediate refractory hard metal compound of at least one metal selected from: PA1 chromium, iron, manganese, cobalt and nickel with at least one non-metal selected from: PA1 carbon, boron, nitrogen, silicon and phosphorous. The cathode is halogenated in its charged state. To form the cathode, the intermediate refractory hard metal is formed and then activated to make it capable of reacting electrochemically with halide ions in use in a cell. The active cathode current collector comprises a core of electroconductive material protected by said intermediate refractory hard metal compound as a surface layer thereon, activated to react electrochemically with halide ions in a cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.