Hierarchical MnCo2O4 constructed by mesoporous nanosheets@polypyrrole composites as anodes for lithium ion batteries

被引：57

作者：

Jin, Rencheng ^{[1
]}

Meng, Yanfeng ^{[1
]}

Ma, Yuqian ^{[1
]}

Li, Honghao ^{[1
]}

Sun, Yexian ^{[1
]}

Chen, Gang ^{[2
]}

机构：

[1] Ludong Univ, Sch Chem & Mat Sci, Yantai 264025, Peoples R China

[2] Harbin Inst Technol, Dept Chem, Harbin 150001, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2016年 / 209卷

关键词：

Solvothermal; Mesoporous MnCo2O4; Polypyrrole; Lithium-ion batteries; LONG-LIFE ANODE; HIGH-CAPACITY; ELECTROCHEMICAL PROPERTIES; HOLLOW MICROSPHERES; FACILE SYNTHESIS; CYCLE STABILITY; RATE CAPABILITY; DOUBLE-SHELL; PERFORMANCE; STORAGE;

D O I：

10.1016/j.electacta.2016.05.072

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The mesoporous MnCo2O4/polypyrrole (PPy) composites have been successfully fabricated through three facile steps, solvothermal synthesis, calcination treatment and subsequent in-situ chemical polymerization. The mesoporous MnCo2O4/PPy displays good electrochemical performance in terms of high reversible capacity, good rate performance, and excellent stability. The high discharge capacity of 910 mAh g(-1) is achieved after 100 cycles at the current density of 200 mA g(-1). The reversible capacity still remains as high as 598 mAh g(-1) at the higher current density of 2000 mA g(-1). The improved electrochemical performance is mainly attributed to the mesoporous structure and the coating layer of PPy, which effectively mitigate the volume change and enable good conductivity and thus enhance fast charge transfer. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：163 / 170

页数：8

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