Lithium cell
US4844996A · kind A · utility
13Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 8, 1988 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Apr 8, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
There is provided an electrochemical charge with substantially increased safety. The cell contains a metal anode which can be alloyed by lithium, the preferred metals being selected from calcium, magnesium, and alloys of these, such cell comprising an electrolyte which is an aprotic solvent in which there is dissolved a suitable lithium salt, a cathode and a cathodic current collector. The anode can be initially charged with lithium. After a certain degree of discharge, certain embodiments of cells of the invention start forming a passivating layer on the anode preventing a runaway reaction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.