An effective method of minimising the selfcorrosion of commercial grades of aluminium (about 99% purity) in alkaline media typical of those found in batteries, without sacrificing other electrochemical properties, for example high anode efficiency and low anodic polarisation, is discussed. A stable zincate coating has been found to be very useful in reducing selfcorrosion of 26S and 57S grades of aluminium to a negligible level of 0·04–0·08 mg cm−2 min−1, while yielding high anode efficiency in alkaline media.
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References
1.
SchwabeK. and SzonertP.: Proc. Symp. on ‘Chemical power sources’, Poznan, Poland, 1973, Central Laboratory of Batteries and Cells, Paper2.14.
2.
ZarombS.: Proc. Symp. on ‘Power systems for electric vehicles’, New York, USA, April1967, US Department of Highways, Energy and Water.
3.
CooperJ. F.: Aluminium-air battery development towards an electric car’, Energy Technology Review UCRL83-6, Lawrence Livermoor National Laboratory, Berkeley, CA, USA, 1983.
4.
FitzpatricN. P., SmithF. N., and JAFFERYP. W.: Proc. Conf. On The aluminum—air battery’, Detroit, MI, USA, February—March1983, Society of Automotive Engineers.
5.
DespicR.: Ind. J. Technol., 1986, 24, 465.
6.
MaimoneA.: Aluminum-air battery system design alternative and status components’, Review UCRL53885, Lawrence Livermoor National Laboratory, Berkeley, CA, USA, 1988.
SarangapaniK. B., BalaramachandranV., KAPALIV., VENKATAKRISHNA IYERS., POTDARM. G., and RAJAGOPALANK. S.: J. Appl. Electrochem., 1984, 14, 475.
9.
SarangapaniK. B., BalaramachandranV., KAPALIV., and VENKATAKRISHNA IYERS.: Proc. 3rd Int. Symp. on Advances in Electrochemical Science and Technology, December 1984, Society for the Advancement of Electrochemical Science and Technology, 2, 9.
SarangapaniK. B., BalaramachandranV., KAPALIV., and VENKATAKRISHNA IYERS.: Proc. Int. Cong. Aluminium ‘85, New Delhi, India, November 1985, Indian Institute of Metallurgy, 105.
12.
SarangapaniK. B., BalaramachandranV., KAPALIV., and VENKATAKRISHNA IYERS.: Proc. Annual Technical Meeting of Electrochemical Society of India, Bangalore, India, July1985.
