Non-aqueous electrolyte lithium battery with improved storage life
US4195123A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 9, 1979 |
| Grant date | Mar 25, 1980 |
| Priority date | — |
| Expiry date | Jan 9, 1999 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01M6/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electrochemical cell having a non-aqueous electrolyte which comprises a solute and at least one solvent, a lithium negative electrode, and a positive active material of said cell which is slightly soluble in said solvent, the surface of the negative electrode is alloyed with at least one metal chosen from the group consisting of lead, tin, antimony and silver, to prevent selective localized deposition onto the lithium electrode of metal reduced from the positive active material during storage. The improvement is particularly applicable to cells in which the positive active material is lead oxide and said solvent is dioxolane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.