A New Tin Graphite Intercalation Compound for Lithium Ion Batteries

Abstract

Abstract: A new composite material was fabricated by intercalating tin nanoparticles into graphite. The tin graphite intercalation compound(Sn-GIC) was prepared by the interactions of tin tetrachloride with KC₈(K-GIC) in tetrahydrofuran(THF). As the anode of lithium ion batteries, Sn-GIC presents a steady reversible capacity(363 mA·h/g) and a good cycling performance in comparison with Sn and SnO₂, it suggests that the association of tin with graphite not only improves the reversible capacities, but also prevents the volume changes resulted from lithium insertion and extraction with tin during a charge-discharge process.

Key words: Lithium ion battery, Anode material, Sn-GIC, Lithium ion battery, Anode material, Sn-GIC

XIE Hai-ming , YAN Xue-dong , YU Hai-ying , ZHANG Ling-yun , YANG Gui-ling , XU Yang , WANG Rong-shun . A New Tin Graphite Intercalation Compound for Lithium Ion Batteries[J]. Chemical Research in Chinese Universities, 2006, 22(5): 639-642.

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A New Tin Graphite Intercalation Compound for Lithium Ion Batteries

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