Cobalt(Ⅱ) coordination polymers as anodes for lithium-ion batteries with enhanced capacity and cycling stability

被引：0

作者：

Yumei Luo ^{[1
]}

Lixian Sun ^{[1
]}

Fen Xu ^{[1
]}

Siyue Wei ^{[1
]}

Qingyong Wang ^{[1
]}

Hongliang Peng ^{[1
]}

Chonglin Chen ^{[2
]}

机构：

[1] Guangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy and Materials,School of Material Science and Engineering,Guilin University of Electronic Technology

[2] Department of Physics and Astronomy,Texas University at San Antonio

来源：

JournalofMaterialsScience&Technology | 2018年 / 34卷 / 08期

关键词：

Lithium-ion battery; Anode; Coordination polymer; Carboxylate;

D O I：

暂无

中图分类号：

O634 [元素有机聚合物]; TM912 [蓄电池];

学科分类号：

070305 ; 080501 ; 081704 ; 0808 ;

摘要：

Coordination polymer Co-btca(H4 btca = 1,2,4,5-benzenetetracarboxylic acid) was synthesized using a simply hydrothermal method.In particular,the as-prepared Co-btca was applied as an anode material for lithium-ion battery for the first time.Single crystal X-ray diffraction results indicated that the asprepared Co-btca displayed unique layer structure,which was beneficial to transport Li ions and electrons.Also,owing to the porous structure and appropriate specific surface area,Co-btca electrode delivered a reversible capacity of 801.3 m A h/g after 50 cycles at a current density of 200 m A/g.The reversible capacity of 773.9 m A h/g was maintained after 200 cycles at a current density of 500 m A/g,exhibiting enhanced cycle stability.It also showed improved rate performance,making it a promising anode material and a new choice for lithium-ion batteries.

引用

页码：1412 / 1418

页数：7