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Doped tin oxides as potential lithium ion battery negative electrodes

Research paper by F. Belliard, P. A. Connor, J. T. S. Irvine

Indexed on: 01 Sep '99Published on: 01 Sep '99Published in: Ionics



Abstract

Recently some work has shown that tin oxide compounds can be promising anode materials in rechargeable lithium batteries. These materials show a higher capacity compared to the graphite that is used commercially. The present studies are focused on zinc doped tin oxides as anode materials, especially on the effect of ball-milling on the anode capacity. Different ratios of ZnO and SnO2 with different times of ball-milling have been used as active materials. The inverse spinel, Zn2SnO4 has been prepared by both hand-grinding and ball-milling, followed by sintering and has also been investigated as an active material. Individual ball-milling of the oxides was observed to increase capacity, co-milling was fairly neutral and ball-milling before solid state reaction was observed to have a detrimental effect.