二氧化锡纳米材料具有毒性小、成本低、可逆容量高等优点,是当前研究最为广泛的锂离子动力电池负极材料之一.构建与碳复合的二氧化锡基纳米结构是缓解二氧化锡在长时间的嵌/脱锂循环过程中体积膨胀、控制纳米颗粒团聚问题以及增加材料导电性的有效方法.用高效、可控的静电纺丝技术,结合高温煅烧、水热合成、化学沉积等方法,可制备出结构型二氧化锡/碳复合纳米纤维.本文讨论了具有不同碳层分布的均匀型、核壳型及三明治型结构的二氧化锡/碳复合纳米纤维的制备方法,以及不同碳层分布对其锂电性能的改善状况及机理分析.
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