薄脆饼
阳极
材料科学
纳米复合材料
硅
等离子体
碳纤维
离子
过程(计算)
化学工程
纳米技术
光电子学
复合材料
电极
化学
计算机科学
工程类
复合数
物理化学
物理
有机化学
操作系统
量子力学
作者
Rasu Muruganantham,Chih-Wei Yang,Hong-Jyun Wang,Chia-Hung Huang,Wei‐Ren Liu
出处
期刊:Nanomaterials
[Multidisciplinary Digital Publishing Institute]
日期:2022-02-16
卷期号:12 (4): 659-659
被引量:17
摘要
Silicon is a promising anode material for high-performance Li-ion batteries as a result of its high theoretical specific capacity and elemental abundance. Currently, the commercial application of the Si-based anode is still restricted by its large volume changes during the lithiation cycles and low electrical conductivity. To address these issues, we demonstrate a facile plasma-assisted discharge process to anchor nano-sized Si particles into methanol with quick quenching. After the subsequent sintering process, we obtained a Si/SiC/C composite (M-Si). The unique structure not only allowed for the electrolyte infiltration to enhance lithium ion diffusion during charge and discharge process, but also buffered the volume expansion of silicon particles to enhance the rate capability and cycle stability. The M-Si cell electrochemical results exposed good Li-ion storage performance compared to that of the bare Si used cell (B-Si). The electrode cell consisting of M-Si exhibited remarkable enhanced cyclic stability and sustained the reversible specific capacity of 563 mAhg−1 after 100 cycles, with a coulombic efficiency of 99% at a current density of 0.1C, which is higher than that of the B-Si electrode cell that was used. Hence, the as-prepared Si/SiC/C composite is an efficient anode material for Li-ion battery applications. Moreover, these results indicate that the novel plasma-assisted discharge technique will bring a potential durable methodology to produce novel high-performance electrode materials for future advanced large-scale energy-storage applications.
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