Gold coating for a high performance Li4Ti5O12 nanorod aggregates anode in lithium-ion batteries

被引：127

作者：

Wang, Wei ^{[1
]}

Guo, Yuanyuan ^{[1
]}

Liu, Lixiang ^{[1
]}

Wang, Shixiong ^{[1
]}

Yang, Xiangjun ^{[1
]}

Guo, Hong ^{[1
,2
]}

机构：

[1] Yunnan Univ, Sch Chem Sci & Engn, Kunming 650091, Yunnan, Peoples R China

[2] Qujing Normal Univ, Sch Chem & Chem Engn, Qujing 655000, Yunnan, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2014年 / 245卷

基金：

中国国家自然科学基金;

关键词：

Li4Ti5O12; Nanorod; High rate; Li-ion batteries; ELECTROCHEMICAL PERFORMANCE; SPINEL LI4TI5O12; RATE CAPABILITY; IMPROVEMENT; ELECTRODES; ADDITIVES; DIFFUSION; STORAGE; LICOO2; ROUTE;

D O I：

10.1016/j.jpowsour.2013.06.156

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：

An effective strategy by combination of alcoholysis, solid-state reaction and coating techniques is employed to prepare Au@Li4Ti5O12 nanorod aggregates as anode materials for Li-ion batteries. The lithium diffusion coefficient of resulting Au@Li4Ti5O12 is 7.32 x 10(-10) cm(2) s(-1), and its stable reversible capacity is 169 mAh g(-1), with the retention of 91.1% after 100 cycles at 5 C. Moreover, it also exhibits excellent rate-capability performance. The superior cycling performance can be attributed to the unique nanorod characteristics, structural stability, and the improved ionic and electronic conduction in the electrode due to the uniform nano coating of Au. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：624 / 629

页数：6

共 30 条

[1] Chemical and electrochemical Li-insertion into the Li4Ti5O12 spinel [J].

Aldon, L ;

Kubiak, P ;

Womes, M ;

Jumas, JC ;

Olivier-Fourcade, J ;

Tirado, JL ;

Corredor, JI ;

Vicente, CP .

CHEMISTRY OF MATERIALS, 2004, 16 (26) :5721-5725

[2]

Amiki Y., 2013, J POWER SOURCES

[3] Building better batteries [J].

Armand, M. ;

Tarascon, J. -M. .

NATURE, 2008, 451 (7179) :652-657

[4] Crystallinity control of a nanostructured LiNi0.5Mn1.5O4 spinet via polymer-assisted synthesis:: A method for improving its rate capability and performance in 5 V lithium batteries [J].

Arrebola, Jose C. ;

Caballero, Alvaro ;

Cruz, Manuel ;

Hernan, Lourdes ;

Morales, Julian ;

Castellon, Enrique Rodriguez .

ADVANCED FUNCTIONAL MATERIALS, 2006, 16 (14) :1904-1912

[5] A novel carbon-coated LiCoO2 as cathode material for lithium ion battery [J].

Cao, Q. ;

Zhang, H. P. ;

Wang, G. J. ;

Xia, Q. ;

Wu, Y. P. ;

Wu, H. Q. .

ELECTROCHEMISTRY COMMUNICATIONS, 2007, 9 (05) :1228-1232

[6] Studies of Mg-substituted Li4-xMgxTi5O12 spinel electrodes (0 ≤ x ≤ 1) for lithium batteries [J].

Chen, CH ;

Vaughey, JT ;

Jansen, AN ;

Dees, DW ;

Kahaian, AJ ;

Goacher, T ;

Thackeray, MM .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2001, 148 (01) :A102-A104

[7] Synthesis of sawtooth-like Li4Ti5O12 nanosheets as anode materials for Li-ion batteries [J].

Chen, Jizhang ;

Yang, Li ;

Fang, Shaohua ;

Tang, Yufeng .

ELECTROCHIMICA ACTA, 2010, 55 (22) :6596-6600

[8] General synthesis of carbon-coated nanostructure Li4Ti5O12 as a high rate electrode material for Li-ion intercalation [J].

Cheng, Liang ;

Yan, Jing ;

Zhu, Guan-Nan ;

Luo, Jia-Yan ;

Wang, Cong-Xiao ;

Xia, Yong-Yao .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (03) :595-602

[9] Electrochemical characteristics of spinel Li4Ti5O12 discharged to 0.01 V [J].

Ge, Hao ;

Li, Ning ;

Li, Deyu ;

Dai, Changsong ;

Wang, Dianlong .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (05) :719-722

[10] New Anode Framework for Rechargeable Lithium Batteries [J].

Han, Jian-Tao ;

Huang, Yun-Hui ;

Goodenough, John B. .

CHEMISTRY OF MATERIALS, 2011, 23 (08) :2027-2029

← 1 2 3 →