Secondary cell using organosulfur/metal charge transfer materials as positive electrode
US5516598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1994 |
| Grant date | May 14, 1996 |
| Priority date | — |
| Expiry date | Jul 28, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A novel battery cell is disclosed which is characterized by a metal-organosulfur positive electrode which has one or more metal-sulfur bonds wherein when the positive electrode is charged and discharged, the formal oxidation state of the metal is changed. The positive electrode has the general formula EQU (M'.sup.z.spsp.+.sub.(c/z) [M.sub.q (RS.sub.y).sub.x.sup.c- ]).sub.n wherein PA1 z=1 or 2; y=1 to 20; x=1 to 10; c=0 to 10; n.gtoreq.1; and q=1 to 10; PA1 wherein M' is a metal or other cation; PA1 wherein M is any multivalent metal, and when n is >1, can be a different multivalent metal in different repeat units of the polymeric metal-organosulfur materials; PA1 wherein R is an organic group having 1 to 20 carbon atoms comprising one or more organic moieties selected from the group consisting of aliphatic chains, aromatic rings, alicyclic rings and combinations of aliphatic chains, aromatic rings, and alicylic rings, with the proviso that R does not comprise fused aromatic rings; wherein said aliphatic chains, aromatic and alicyclic rings may include one or more oxygen, sulfur, silicon, phosphorous or nitrogen heteroatoms, and which may be substituted with one or more electron wi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.