Excellent long-term cycling stability of La-doped Li4Ti5O12 anode material at high current rates

被引：89

作者：

Bai, Yu-Jun ^{[1
,2
]}

Gong, Chen ^{[1
]}

Qi, Yong-Xin ^{[1
]}

Lun, Ning ^{[1
]}

Feng, Jun ^{[1
]}

机构：

[1] Shandong Univ, Minist Educ, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Peoples R China

[2] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2012年 / 22卷 / 36期

基金：

中国国家自然科学基金;

关键词：

LOW-TEMPERATURE PERFORMANCE; LITHIUM-ION; ELECTROCHEMICAL PERFORMANCE; CATHODE MATERIALS; LIMN2O4;

D O I：

10.1039/c2jm34523d

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：

La-doped Li4Ti5O12 (LLTO) was prepared by a simple approach using tetrabutyl titanate, LiOH center dot H2O and La(NO3)(3)(center dot)6H(2)O as raw materials, followed by sintering the dried mixture at 600 degrees C for 5 h. Without requiring any further treatments, the as-obtained LLTO could exhibit excellent long-term cycling stability, high coulombic efficiency close to 100% at various charge-discharge rates, outstanding capacity retention at high current rates of 10-50 C, remarkable performance in the temperature range from -40 to 60 degrees C, good cycling performance even subjected to overcharging to about 10 times of the reversible capacity. The La-doped LTO could be directly used as efficient anode materials for lithium-ion batteries.

引用

收藏

页码：19054 / 19060

页数：7

相关论文

共 32 条

[1] Low temperature performance of nanophase Li4Ti5O12 [J].

Allen, J. L. ;

Jow, T. R. ;

Wolfenstine, J. .

JOURNAL OF POWER SOURCES, 2006, 159 (02) :1340-1345

[2] Enhanced rate performance and cyclic stability of Fe3O4-graphene nanocomposites for Li ion battery anodes [J].

Behera, Shantanu K. .

CHEMICAL COMMUNICATIONS, 2011, 47 (37) :10371-10373

[3] Mechanism of ionic conduction and electrochemical intercalation of lithium into the perovskite lanthanum lithium titanate [J].

Bohnke, O ;

Bohnke, C ;

Fourquet, JL .

SOLID STATE IONICS, 1996, 91 (1-2) :21-31

[4] High-surface-area α-Fe2O3/carbon nanocomposite: one-step synthesis and its highly reversible and enhanced high-rate lithium storage properties [J].

Chou, Shu-Lei ;

Wang, Jia-Zhao ;

Wexler, David ;

Konstantinov, Konstantin ;

Zhong, Chao ;

Liu, Hua-Kun ;

Dou, Shi-Xue .

JOURNAL OF MATERIALS CHEMISTRY, 2010, 20 (11) :2092-2098

[5] Effect of rare earth elements doping on structure and electrochemical properties of LiNi1/3Co1/3Mn1/3O2 for lithium-ion battery [J].

Ding, Yanhuai ;

Zhang, Ping ;

Jiang, Yong ;

Gao, Deshu .

SOLID STATE IONICS, 2007, 178 (13-14) :967-971

[6] Synthesis and Characterization of Spherical La-Doped Nanocrystalline Li4Ti5O12/C Compound for Lithium-Ion Batteries [J].

Gao, Jian ;

Jiang, Changyin ;

Wan, Chunrong .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (02) :K39-K42

[7] Preparation and characterization of spherical La-doped Li4Ti5O12 anode material for lithium ion batteries [J].

Gao, Jian ;

Ying, Jierong ;

Jiang, Changyin ;

Wan, Chunrong .

IONICS, 2009, 15 (05) :597-601

[8] The preparation and characterization of Li4Ti5O12/carbon nano-tubes for lithium ion battery [J].

Huang, Junjie ;

Jiang, Zhiyu .

ELECTROCHIMICA ACTA, 2008, 53 (26) :7756-7759

[9] Effects of dopant on the electrochemical performance of Li4Ti5O12 as electrode material for lithium ion batteries [J].

Huang, Shahua ;

Wen, Zhaoyin ;

Zhu, Xiujian ;

Lin, Zuxiang .

JOURNAL OF POWER SOURCES, 2007, 165 (01) :408-412

[10] HIGH IONIC-CONDUCTIVITY IN LITHIUM LANTHANUM TITANATE [J].

INAGUMA, Y ;

CHEN, LQ ;

ITOH, M ;

NAKAMURA, T ;

UCHIDA, T ;

IKUTA, H ;

WAKIHARA, M .

SOLID STATE COMMUNICATIONS, 1993, 86 (10) :689-693

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