阳极
材料科学
硅
多孔硅
纳米技术
锂(药物)
蚀刻(微加工)
多孔性
数码产品
石墨
反应离子刻蚀
电极
复合材料
冶金
电气工程
化学
物理化学
内分泌学
工程类
图层(电子)
医学
作者
Myungbeom Sohn,Hyeong‐Il Park,Dong Geun Lee,Hansu Kim
出处
期刊:Meeting abstracts
日期:2016-09-01
卷期号:MA2016-02 (3): 307-307
标识
DOI:10.1149/ma2016-02/3/307
摘要
Lithium-ion batteries (LIBs) have played a critical role in the development of portable electronics and have gained a great deal of attention as power sources for emerging applications such as wearable devices, electric vehicles and robots. However, current LIBs reached technological limits for increasing their energy densities. In order to solve this, much research effort has been devoted to finding high capacity electrode materials to replace currently used materials such as graphite anode in LIBs. Although silicon-based materials are regarded as one of the most promising candidates for anodes because of their huge capacities, the huge volume expansion/contraction of Si during cycling lead to drastic capacity degradation. Recently, porous silicon materials have been revealed to accommodate the large volume change of Si, thus showing outstanding electrochemical performances. However, their use in LIBs suffers from the complicated and limited routes for their synthesis. In this presentation, we represent a porous Si material prepared by scalable and nontoxic chemical etching process as a high capacity lithium storage material for LIBs. This material synthesis concept presented herein represents a means of improving the electrochemical properties of porous Si anode materials for use in commercial LIBs.
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