Porous ZnMn2O4 microspheres as a promising anode material for advanced lithium-ion batteries

被引：158

作者：

Wang, Nana ^{[1
]}

Ma, Xiaojian ^{[1
]}

Xu, Huayun ^{[1
]}

Chen, Liang ^{[1
]}

Yue, Jie ^{[1
]}

Niu, Feier ^{[1
]}

Yang, Jian ^{[1
]}

Qian, Yitai ^{[1
,2
]}

机构：

[1] Shandong Univ, Sch Chem & Chem Engn, Minist Educ, Key Lab Colloid & Interface Chem, Jinan 250100, Peoples R China

[2] Univ Sci & Technol China, Dept Chem, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China

来源：

NANO ENERGY | 2014年 / 6卷

基金：

中国国家自然科学基金;

关键词：

Transitional metal oxides; Porous structure; Li-ion battery; HIGH-PERFORMANCE ANODE; CO; NANORODS; FE3O4;

D O I：

10.1016/j.nanoen.2014.04.001

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

High-quality porous ZnMn2O4 microspheres composed of interconnected nanoparticles have been achieved by calcination of metal carbonates synthesized by a solvothermal reaction. The porous microspheres are characterized by XRD patterns, SEM, TEM, and HRTEM images to reveal the crystal phase and particle morphology. The porous structure and nanoscale building blocks of ZnMn2O4 microspheres make them a promising anode material for lithium ion batteries. After 300 cycles at a current density of 500 mA g(-1), they still preserve a reversible capacity of 800 mAh g(-1). Even at 2 A g(-1), the reversible capacity could be 395 mAh g(-1), higher than the theoretical capacity of graphite. The superior electrochemical performances can be associated with the porous structure and nanoscale building blocks, which promote the contacting between electrolyte and electrode, accommodate volume change during discharge/charge processes, and provide a large number of active surface sites for lithium storage. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：193 / 199

页数：7

共 38 条

[1] Porous Electrode Materials for Lithium-Ion Batteries - How to Prepare Them and What Makes Them Special [J].