锡酸锌纳米花的制备及其电化学性能研究  

Synthesis and Electrochemical Performance of Zn2SnO4 Nanoflowers

作　　者：张奕 李代颖 李玉龙 Zhang Yi;Li Daiying;Li Yulong(Wuhan Institute of Marine Electric Propulsion,Wuhan 430064,China)

机构地区：[1]武汉船用电力推进装置研究所,武汉430064

出　　处：《船电技术》2020年第5期60-64,共5页Marine Electric & Electronic Engineering

摘　　要：锡基氧化物材料因其高理论容量而被作为锂离子、钠离子电池负极材料得到了广泛的关注。本文通过一步水热法合成了由纳米棒构成的锡酸锌(Zn2SnO4)纳米花,并将其作为锂离子、钠离子电池负极材料进行了电化学性能的探究。在作为锂离子电池负极材料时,Zn2SnO4纳米花能够提供989.8mAhg^-1的可逆容量,且循环50圈后,其容量保持在730.5 mAh g^-1;而作为钠离子电池负极材料时,Zn2SnO4纳的可逆容量为260.1 mAh g^-1,循环80圈后的容量保持在207.3 mAh g^-1。结果表明Zn2SnO4纳米花具有优于多数纯相锡基材料的循环性能,体现了该材料双金属组分及其特殊的纳米花结构在电化学储能方面的优势。Sn-based oxides have obtained much attentions as the anode of both the lithium ion batteries(LIBs)and sodium ion batteries(SIBs),due to their high theoretical specific capacity.In this work the high-purity Zn2SnO4 nanoflowers composed of nanorods were synthesized by a facile hydrothermal process.And the electrochemical performances of the materials were then investigated as the anode of LIBs and SIBs,respectively.Compared with most bare Sn-based materials,Zn2SnO4 nanoflowers exhibit a better cycling performance for both LIBs(730.5 mAh g^-1 after 80 cycles)and SIBs(207.3 mAh g^-1 after 80 cycles),which shows that the Zn2SnO4 nanoflowers are promising materials in the field of energy storage.

关 键 词：锂离子电池 钠离子电池 负极材料 锡基氧化物 双金属 

分 类 号：TM911[电气工程—电力电子与电力传动]