Effect of antimony on lead-acid battery negative electrode
Abstract
The lead electrode charge efficiency was related to antimony concentration to analyze. The effect of the interaction of antimony and lignin-expander on the head-electrode behavior was analyzed and the critical lead-electrode potential necessary to purge antimony was determined. Pasted type and small Plante' type lead-electrodes were prepared and tested to determine the effect of antimony by cathodic linear potential sweep charging. Antimony and/or lignin-expander were included either in electrolyte or in paste matrix. Results showed a significant contribution of antimony in decreasing charge efficiency and an overwhelming role of expander in suppressing the effect of antimony on charge efficiency. The critical lead-electrode potential for purging antimony from the electrode is close to -1.275 V (vs. Hq/Hq2/SO4).
- Publication:
-
Presented at the Electrochem. Soc. Fall Meeting
- Pub Date:
- 1983
- Bibcode:
- 1983ecs..meetR....M
- Keywords:
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- Antimony;
- Charge Efficiency;
- Electrodes;
- Lead Acid Batteries;
- Lignin;
- Hydrogen Production;
- Purging;
- Electronics and Electrical Engineering