Lithium/bromine trifluoride electrochemical cell designed to be discharged after being activated and stored
US5188913A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 1992 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Mar 25, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lithium and bromine trifluoride electrochemical cell designed to be discharged after being activated and stored, the cell comprising an anode made of lithium or lithium alloy and a positive current collector made of carbon black, and containing at least one compound that is soluble in bromide trifluoride, and is capable of stabilizing the passivation layer of said anode and of blocking corrosion of said anode during storage, the compound being selected from sulfonates and being at a concentration lying in the range 10.sup.-2 moles per liter to 1 mole per liter. After the cell of the invention has been stored, it restores a large fraction of its initial capacity (curve C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.