Hollow nanospheres of mesoporous Co9S8 as a high-capacity and long-life anode for advanced lithium ion batteries

被引：310

作者：

Zhou, Yanli ^{[1
]}

Yan, Dong ^{[1
]}

Xu, Huayun ^{[1
]}

Feng, Jinkui ^{[2
]}

Jiang, Xiaolei ^{[1
]}

Yue, Jie ^{[1
]}

Yang, Jian ^{[1
]}

Qian, Yitai ^{[1
,3
]}

机构：

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

[2] Shandong Univ, Sch Mat Sci & Engn, Jinan 250061, Peoples R China

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

来源：

NANO ENERGY | 2015年 / 12卷

关键词：

Nanomaterials; Hollow structures; Electrochemical properties; Lithium ion batteries; PHASE-CONTROLLED SYNTHESIS; COBALT SULFIDE; STORAGE PERFORMANCES; ELECTRODE MATERIALS; FACILE SYNTHESIS; ENERGY-STORAGE; TIO2; ANATASE; YOLK-SHELL; NANOPARTICLES; MICROSPHERES;

D O I：

10.1016/j.nanoen.2015.01.019

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：

Hollow nanospheres of mesoporous Co9S8 are successfully synthesized by a facile solvothermal reaction followed with a high-temperature annealing in Ar/H-2. These hollow nanoparticles exhibit a reversible capacity of similar to 1414 mA h g(-1) after 100 cycles at 100 mA g(-1). In the course of this cycling, there is a significant capacity recovery, which is associated with enhanced capacitance caused by repeated electro-chemical milling. The growth of a carbon shell on the hollow nanospheres further improves the reversible capacities at high rates, similar to 896 mA h g(-1) after 800 cycles at 2 A g(-1). The excellent lithium-storage performances shed light on the promising potential of sulfides as a high capacity, high rate and long life anodes. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：528 / 537

页数：10

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