Antimony in lead—acid cells IV. Review and design considerations
✍ Scribed by A.A. Jenkins; W.C. Maskell; F.L. Tye
- Book ID
- 103898213
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 394 KB
- Volume
- 19
- Category
- Article
- ISSN
- 0378-7753
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✦ Synopsis
The literature regardmg the dissolution, transport, and sorption of Sb, and its effects m lead-acid batteries is briefly reviewed. Antimony is evolved m the V valency state prmcipally from positive antimomal-lead grids. It is adsorbed by PbOz present m charged positive active material and is also taken up by the negative active material In the latter case this reduces the hydrogen overvoltage of the Pb electrode resulting m self-discharge and coulombic mefficiency on charging. On the other hand, the presence of Sb is beneficial to the performance of positive electrodes. Transfer of dissolved Sb between positive and negative electrodes is impeded by a separator with small pores. Design pnnciples are proposed mcluding antimonial and nonantimomal positive and negative grids, respectively, and a separator with small pores, which should improve the cycle life of battenes.