Annealing of mixed metal oxide electrodes to reduce polarization resistance
US6228534A · kind A · utility
108Cited by
7References
22Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 21, 1998 |
| Grant date | May 8, 2001 |
| Priority date | — |
| Expiry date | Dec 21, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49108
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The thermal treatment of transition metal oxide electrodes such as silver vanadium oxide cathode plates, contacted to titanium current collectors for the purpose of reducing polarization resistance in an alkali metal electrochemical cell, is described. The electrodes are exposed to an elevated temperature of at least about 225.degree. C. for about 8 hours prior to cell fabrication. The present heat treatment regime is particularly useful in cathodes intended for fabrication into a cell powering an implantable medical device with improved polarization resistance as well as reduced heat dissipation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.