A Facile Synthesis of Urchin-Like ZnMn2O4 Architectures with Enhanced Electrochemical Lithium Storage

被引：13

作者：

Dou, Xiaoyong ^{[1
]}

Chen, Ming ^{[2
,3
]}

Zai, Jiantao ^{[2
,3
]}

Gong, Yong ^{[2
,3
]}

Iqbal, Asma ^{[2
,3
]}

Zhou, Qinnan ^{[2
,3
]}

Dong, Boxu ^{[2
,3
]}

Tsega, TsegayeTadesse ^{[2
,3
]}

Qi, Rongrong ^{[2
,3
]}

Qian, Xuefeng ^{[2
,3
]}

机构：

[1] China Pingmei Shenma Grp, State Key Lab Coking Coal Exploitat & Comprehens, Pingdingshan 467000, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai Electrochem Energy Devices Res Ctr, Shanghai 200240, Peoples R China

[3] Shanghai Jiao Tong Univ, State Key Lab Met Matrix Composites, Shanghai 200240, Peoples R China

来源：

CHEMISTRYSELECT | 2020年 / 5卷 / 04期

基金：

中国国家自然科学基金;

关键词：

Anode materials; Lithium-ion batteries; Long cycling; Urchin-Like ZnMn2O4; HIGH-PERFORMANCE ANODE; ION BATTERY ANODE; ZNFE2O4; NANOPARTICLES; MICROSPHERES; CAPACITY; ENERGY; LIFE; FOAM;

D O I：

10.1002/slct.201904602

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

As conversion material, ZnMn2O4 has a high theoretical specific capacity as an anode for Lithium-ion batteries. This paper has designed a facile method to prepare urchin-like ZnMn2O4 architectures with high quality and well crystallinity. The resultant urchin-like ZnMn2O4 architectures exhibit high discharge capacity and excellent cycling stability. The initial discharge capacity of urchin-like ZnMn2O4 architectures is 1167 mAh g(-1) at 0.4 A g(-1) and the electrode materials could maintain high reversible capacity of 889 mAh g(-1) after 150 cycles. Even in the high current density of 1 A g(-1), the electrode of urchin-like ZnMn2O4 can keep a high reversible capacity of 578 mAh g(-1) after 300 cycles. The improved electrochemical performance can be ascribed to the urchin-like architectures of the as-prepared ZnMn2O4, which could be conducive to the transmission of lithium ions and electrons and provide sufficient void spaces to tolerate the volume change during the Li+ intercalation. These results revealed that as-prepared urchin-like ZnMn2O4 architectures would be a promising anode for high performance Lithium-ion batteries.

引用

页码：1491 / 1495

页数：5

共 44 条

[1] High-performance carbon-coated ZnMn2O4 nanocrystallite supercapacitors with tailored microstructures enabled by a novel solution combustion method [J].