Lithium cell
US8062788B2 · kind B2 · utility
2Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 2009 |
| Grant date | Nov 22, 2011 |
| Priority date | — |
| Expiry date | Sep 16, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M2300/004
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A primary cell having an anode comprising lithium and a cathode comprising iron disulfide (FeS2) and carbon particles. The electrolyte comprises a lithium salt dissolved in a nonaqueous solvent mixture which contains an additive, preferably iodine, suppressing voltage delay. A cathode slurry is prepared comprising iron disulfide powder, carbon, binder, and liquid solvent. The mixture is coated onto a conductive substrate and solvent evaporated leaving a dry cathode coating on the substrate. The anode and cathode can be spirally wound with separator therebetween and inserted into the cell casing with electrolyte then added.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.