Method of making zinc electrode including a fatty acid
US7811704B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2003 |
| Grant date | Oct 12, 2010 |
| Priority date | — |
| Expiry date | Sep 15, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A composition, method of its preparation, and zinc electrodes comprising the composition as the active mass, for use in rechargeable electrochemical cells with enhanced cycle life is described. The electrode active mass comprises a source of electrochemically active zinc and at least one fatty acid or a salt, ester or derivative thereof, or an alkyl sulfonic acid or a salt ester or derivative thereof. The zinc electrode is assumed to exhibit low shape change and decreased dendrite formation compared to known zinc electrodes, resulting in electrochemical cells which have improved capacity retention over a number of charge/discharge cycles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.