Safety cathode for non-aqueous electrochemical cell
US4822700A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1988 |
| Grant date | Apr 18, 1989 |
| Priority date | — |
| Expiry date | Apr 22, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/50
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Exothermic reactions at elevated temperatures in high rate non-aqueous active metal electrochemical cells which include an alkali metal anode, an electrolyte system including an electrolyte salt dissolved in a non-aqueous solvent depolarizer, by the provision of a reaction limiting positive electrode material which includes an amount of carbon black, an amount of binder and an amount of ceramic material, said ceramic material being substantially unreactive with other cell species below a predetermined temperature but capable of reacting to form substantially inactive products with the metal of the anode material at or above the predetermined temperature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.