阳极
材料科学
复合数
电化学
锂(药物)
锡
纳米技术
离子
锂离子电池
扩散
化学工程
电池(电)
复合材料
冶金
电极
物理化学
热力学
物理
工程类
内分泌学
功率(物理)
医学
化学
量子力学
作者
Anjun Shi,Shengquan Yu,Lihua Wu,Liangqiang Cai,Tian Gao,Yu Zhou,Aichun Dou,Mingru Su
标识
DOI:10.1142/s1793604723510177
摘要
Despite its high theoretical specific capacity, direct application of SiO[Formula: see text] is challenging particularly in terms of alleviating volume effect and improving electronic conductivity to enhance the battery performance. SiO[Formula: see text]/CNTs/Sn composite with high cyclability and rate performance was proposed by a modified Stöber liquid phase method, CNTs and metallic tin were employed during the subsequent mechanical ball milling process to investigate their effects on the resulting physicochemical property and electrochemical performance. The structure of /CNTs/Sn composite was designed, and the multi-structure not only alleviates the volume effect of SiO[Formula: see text] to a certain extent but also provides additional diffusion pathways for lithium ions, electrons, and flexible substrate. From electrochemical characterization, the half-cell battery integrating SiO[Formula: see text]/CNTs/Sn anode exhibits a capacity of 880.83 mAh g[Formula: see text] with 6.3% capacity fading after 100 cycles at 0.1 A g[Formula: see text] and excellent rate performance. The simple and ingenious synthesis method could provide new development and application ideas for SiO[Formula: see text]-based anode materials.
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