关键词：介孔材料，碳/锡复合，锂离子电池，负极材料
Abstract
The current commercialization of lithium-ion batteries are mainly of carbon graphite materials, its capacity value 372mAh/g, so the new negative material has become the focus of the study. Metal tin of theory than the capacity of up to 990mAh/g, and whose action potential high, total embedded does not exist, but since the lithium is itself a large volume expansion, lithium's repeated removal of ingrown causes of Tin, lead and gradually powder collector of electrical contact variation, shorten the life cycle. In order to leverage the advantages of tin metal, while addressing the lack of Tin and carbon composite and realization of the porous material preparation is expected to be high performance lithium-type lithium-ion batteries.
This article to P123 as template, under acidic conditions, SBA-15 mesoporous materials synthesis, and leverage it modified Al. With Furfuryl alcohol and TMB (three toluene) as carbon precursors, by immersion method, it is introduced into mesoporous silica channel, then use SBA-15 mesoporous materials as a template, the high temperature carbonization and carbon reduction techniques, get mesoporous carbon materials. By assembling Tin, Tin and mesoporous carbon reasonable, the combination of synthetic want anode material. At the same time on the samples lithium performance study.
