Under potential deposition of lead onto carbon fibres for use in lead/acid battery applications

Reference:

Lawrence, E. L., Ball, R. J., Evans, R. and Stevens, R., 2002. Under potential deposition of lead onto carbon fibres for use in lead/acid battery applications. Journal of Materials Science, 37 (21), pp. 4517-4520.

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Official URL:

http://dx.doi.org/10.1023/A:1020615424980

Abstract

An effective method of reducing the mass of a lead acid battery is to replace the lead with a less dense electrical conductor such as carbon. The application of a thin layer of lead onto the surface of carbon fibres can improve the electrical and mechanical properties of the bond between the fibre and battery active material. Under-potential deposition was used to apply a thin layer of lead onto carbon fibre tows. The efficiency of this process using a number of different electrolytes and voltage ranges was assessed. X-ray photoelectron spectroscopy and secondary ion mass spectroscopy were used to evaluate the deposition process. Lead was successfully deposited onto the surface of the fibres at a potential of approximately 262 mV using the electrolyte consisting of 0.1 M HClO4 and 0.01 M Pb(OAC)2.

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