High performance hollow carbon@SnO2@graphene composite based on internal-external double protection strategy for lithium ion battery
High performance hollow carbon@SnO2@graphene composite based on internal-external double protection strategy for lithium ion battery
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基于锂离子电池内外双重保护策略的高性能空心碳@SnO2@石墨烯复合材料
DOI：
10.1016/j.electacta.2016.10.110
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发表时间：
2016
影响因子：
6.6
通讯作者：
Zhang WenHui
中科院分区：
文献类型：
--
作者：
Yue Lu;Xue Cong;Huang Beibing;Xu Ning;Guan Rongfeng;Zhang Qinfang;Zhang WenHui
采用硬模板法制备了中空碳@SnO2@石墨烯复合材料，并结合基于内外双重保护的逐层自组装修饰方法制备了中空碳@SnO2@石墨烯复合材料。∼45 nm厚的活性SnO2均匀存在于∼20 nm厚的碳层和石墨烯层之间，形成三维多孔复合结构。所制备的复合电极在500 mA/−1下循环600次，容量稳定且高达1015mAHg/−1。
Hollow carbon@SnO2@graphene composite was fabricated by hard template method combined with layer by layer self assembly modification method based on internal-external double protection strategy. The ∼45 nm thick active SnO2existed uniformly between the ∼20 nm thick carbon layer and graphene layer to form a three-dimensional porous composite structure. The prepared composite electrode exhibited stable and high capacity of 1015 mAh g−1over 600 cycles at 500 mA g−1.