Abstract
To improve the cycle performance of the thick Sn electrode of 10 μm thickness, the Sn–C composite electrodes were fabricated by co-electrodeposition with two kinds of carbon particles which were the graphite and the acetylene black. The acetylene black particles were well dispersed in the Sn matrix more than the graphite particles. The carbon content in the Sn–C composite electrodes was measured about 12% of the graphite and 16% of the acetylene black particles. Even though carbon content of the Sn–acetylene black electrode was not significantly higher than that of the Sn–graphite electrode, the cycle performance of the Sn–acetylene black electrode was much higher than that of the Sn–graphite electrode. This demonstrates that the ‘buffering effects’ of well dispersed acetylene black particles was larger than that of the graphite particles. The cycle performance of the Sn–acetylene black electrode was significantly improved by the aging treatment.
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