Insoluble mixed heavy metal polysulfide cathodes
US4891283A · kind A · utility
12Cited by
5References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1986 |
| Grant date | Jan 2, 1990 |
| Priority date | — |
| Expiry date | Apr 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Mixed heavy metal polysulfides which are insoluble in non-aqueous electrolytes and having the formula EQU M(1).sub.w.sup.+n M(2).sub.x.sup.+m (S.sub.y).sub.z.sup.-2 (wherein M(1) and M(2) are different heavy metal atoms, n and m are integers representing the valence states of M(1) and M(2) respectively, w and x are integers representing the stoichiometry of M(1) and M(2) respectively in the polysulfide, S is sulfur, nw+mx=2z and y is greater than 4.5) are utilized as very high energy density cathodes in non-aqueous electrochemical cells.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.