题目:Lattice Breathing Inhibited Layered Vanadium Oxide Ultrathin Nanobelts for Enhanced Sodium Storage
作者:Qiulong Wei ‡, Zhouyang Jiang §, Shuangshuang Tan ‡, Qidong Li ‡, Lei Huang ‡, Mengyu Yan ‡, Liang Zhou *‡, Qinyou An ‡, and Liqiang Mai *‡
‡ State Key Laboratory of Advanced Technology for Materials Synthesis and Processing
§ School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, P. R. China
摘要:Operating as the “rocking-chair” battery, sodium ion battery (SIB) with acceptable high capacity is a very promising energy storage technology. Layered vanadium oxide xerogel exhibits high sodium storage capacity. But it undergoes large lattice breathing during sodiation/desodiation, resulting in fast capacity fading. Herein, we develop a facile hydrothermal method to synthesize iron preintercalated vanadium oxide ultrathin nanobelts (Fe-VOx) with constricted interlayer spacing. Using the Fe-VOx as cathode for SIB, the lattice breathing during sodiation/desodiation is largely inhibited and the interlayer spacing is stabilized for reversible and rapid Na+ insertion/extraction, displaying enhanced cycling and rate performance. This work presents a new strategy to reduce the lattice breathing of layered materials for enhanced sodium storage through interlayer spacing engineering.![大牛Liqiang Mai钠离子电池最新力作(ACS, 2015年8月15日)]()
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