标题:Molten salt-assisted template synthesis of lithium-rich layered oxide 0.3Li(2)MnO(3)center dot 0.7LiNi(1/3)Co(1/3)Mn(1/3)O(2) nanorods as lithium-ion battery cathode
作者:Zhao, Chenhao;Hu, Zhibiao;Shen, Qiang
作者机构:[Zhao, C] College of Chemistry and Materials Science, LongYan University, LongYan, 364012, China;[ Hu, Z] College of Chemistry and Materials Science, 更多
通讯作者地址:[Zhao, CH]LongYan Univ, Coll Chem & Mat Sci, Longyan 364012, Peoples R China.
来源:Micro & nano letters
出版年:2015
卷:10
期:2
页码:122-125
DOI:10.1049/mnl.2014.0335
关键词:lithium compounds;nickel compounds;cobalt compounds;nanorods;nanofabrication;secondary cells;electrochemical electrodes;particle size;current density;molten salt-assisted template synthesis;lithium-rich layered oxide nanorods;lithium-ion battery cathode;rod-like structure;immediate solid-state reaction;phase purity;particle size;initial discharge capacity;Coulombic efficiency;current density;charge-discharge rate;stable capacity;Li2MnO3-LiNi0;33Co 0;33Mn0;33O(2)
摘要:Lithium-rich layered oxide 0.3Li(2)MnO(3)0.7LiNi(1/3)Co(1/3)Mn(1/3)O(2) nanorods have been prepared by a KCl molten salt-assisted template route. The nanorods can well retain the rod-like structure of a -MnO2 template, and have the length of several hundred nanometres and diameters of about one hundred nanometres. In comparison with the sample obtained from immediate solid-state reaction, the molten salt treatment can help improve the phase purity and decrease the particle size. As a lithium-ion battery cathode, the KCl-treated nanorods deliver an initial discharge capacity of 242.9 mAh g(-1) with a high Coulombic efficiency of 83.6% at a current density of 20 mA g(-1) within 2.0-4.7 V. After 60 cycles, a discharge capacity of 150.8 mAh g(-1) can be retained at 0.5 C. Even at a high charge-discharge rate of 4 C (800 mA g(-1)), a stable capacity of 104.2 mAh g(-1) can be reached, while the sample obtained from solid-state reaction only delivers an initial discharge capacity of 179.1 mAh g(-1)at 20 mA g(-1).
收录类别:EI;SCOPUS;SCIE
WOS核心被引频次:2
Scopus被引频次:2
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-84923852407&doi=10.1049%2fmnl.2014.0335&partnerID=40&md5=0ba76a20fed133bdfa3761fea50c3021
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