扫描电子显微镜
阳极
俄歇电子能谱
能量色散X射线光谱学
材料科学
光谱学
复合数
电子能量损失谱
锂(药物)
分析化学(期刊)
硅
化学
纳米技术
复合材料
光电子学
电极
透射电子显微镜
物理化学
医学
物理
量子力学
色谱法
内分泌学
核物理学
作者
Reiko Matsuda,Akihiro Tanaka,Kota Yanagihara,Yukichi Sasaki,Kazuhiro Hikima,Hiroyuki Muto,Atsunori Matsuda
标识
DOI:10.1021/acs.jpcc.3c02935
摘要
Silicon (Si) is a promising anode material for lithium-ion batteries owing to its large capacity. Herein, all-solid-state full cells using Si composite anodes and sulfide solid electrolytes were fabricated and their charge–discharge performances were evaluated. From Auger electron spectroscopy and scanning electron microscopy with energy dispersive spectroscopy analyses of the cross section of the full cells, the presence of Li2O in the Si composite anodes was confirmed after the 50th charge–discharge cycle. Further, the relation between the capacity deterioration mechanism of the cells using the Si composite anodes and the generation of Li2O was studied.
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