Tungsten nitride nanoplates as an anode material for lithium ion batteries

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• 作者：Han-Chul Park ; Si-Jin Kim ; Min-Cheol Kim ; Da-Mi Kim ; Kyung-Won Park ; ^{kwpark@ssu.ac.kr" class="auth_mail" title="E-mail the corresponding author}
• 关键词：WN ; Nanoplates ; Anode material ; Lithium ion batteries
• 刊名：Ceramics International
• 出版年：2016
• 出版时间：January 2016
• 年：2016
• 卷：42
• 期：1
• 页码：1933-1942
• 全文大小：4194 K

文摘

Well-defined mesoporous nanostructure electrodes have been known to have improved lithium ion reaction properties such as the lithium ion reaction, cyclability, and high rate performance. We suggest mesoporous tungsten nitride nanoplates prepared via a template-free synthesis for lithium-ion batteries. The as-prepared tungsten nitride (m-WN) exhibited a face-centered cubic WN phase, well-defined mesoporous structure. Furthermore, to investigate a formation mechanism of the well-defined mesoporous WN structure formed from two-dimensional WO₃ nanoplates. Finally, the m-WN showed improved electrochemical reaction properties of lithium ions such as high specific capacity and high rate cycling performance due to low transport resistance and high lithium ion diffusion coefficient.