Characterizations and electrochemical performance of pure and metal-doped Li4Ti5O12 for anode materials of lithium-ion batteries

被引：14

作者：

Jeong, Euh Duck ^{[1
]}

Han, Hyun Ju ^{[1
,2
]}

Jung, Ok Sang ^{[2
]}

Ha, Myoung Gyu ^{[1
]}

Doh, Chil Hoon ^{[3
]}

Hwang, Min Ji ^{[3
]}

Yang, Ho-Soon ^{[4
]}

Hong, K. S. ^{[1
]}

机构：

[1] Korea Basic Sci Inst, Div High Technol Mat Res, Pusan 618230, South Korea

[2] Pusan Natl Univ, Dept Chem, Pusan 609735, South Korea

[3] Korea Electrotechnol Res Inst, Chang Won 642120, South Korea

[4] Pusan Natl Univ, Dept Phys, Pusan 609735, South Korea

来源：

MATERIALS RESEARCH BULLETIN | 2012年 / 47卷 / 10期

关键词：

Inorganic compounds; Chemical synthesis; Electron microscopy; X-ray diffraction; Electrochemical properties; ALL-SOLID-STATE;

D O I：

10.1016/j.materresbull.2012.04.137

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure and metal (Cu, Al, Sn, and V)-doped Li4Ti5O12 powders are prepared with solid-state reaction method. The effects of dopants on the physical and electrochemical properties are characterized by using TGA, XRD, and SEM. Compared with pure Li4Ti5O12, metal-doped Li4Ti5O12 powders show structural stability and enhanced lithium ion diffusivity brought by doped metal ions. Voltage characteristics and initial charge-discharge characteristics according to the C rates in pure and metal-doped Li4Ti5O12 electrode materials are studied. Pure Li4Ti5O12 powder shows a relatively good discharge capacity of 164 mAh/g at a rate 0.2C, and some of metal-doped Li4Ti5O12 powders show higher discharge capacities. Metal-doped Li4Ti5O12 powders are promising candidates as anode materials for lithium-ion batteries. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：2847 / 2850

页数：4

共 17 条

[1] Plastic crystal-lithium batteries: An effective ambient temperature all-solid-state power source [J].

Abouimrane, A ;

Abu-Lebdeb, Y ;

Alarco, PJ ;

Armand, M .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (07) :A1028-A1031

[2]

Ahn C. W., 2010, Defect and Diffusion Forum, V297-301, P906, DOI 10.4028/www.scientific.net/DDF.297-301.906

[3]

[Anonymous], 2002, ADV LITHIUM ION BATT

[4]

Dahlin GR, 2010, ELECTR ENG DEV, P1

[5] A nonaqueous asymmetric hybrid Li4Ti5O12/poly(fluorophenylthiophene) energy storage device [J].

Du Pasquier, A ;

Laforgue, A ;

Simon, P ;

Amatucci, GG ;

Fauvarque, JF .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2002, 149 (03) :A302-A306

[6] Nano-particle Li4Ti5O12 spinel as electrode for electrochemical generators [J].

Guerfi, A ;

Sévigny, S ;

Lagacé, M ;

Hovington, P ;

Kinoshita, K ;

Zaghib, K .

JOURNAL OF POWER SOURCES, 2003, 119 :88-94

[7] Synthesis by TEA sol-gel method and electrochemical properties of Li4Ti5O12 anode material for lithium-ion battery [J].

Hao, YJ ;

Lai, QY ;

Xu, ZH ;

Liu, XQ ;

Ji, XY .

SOLID STATE IONICS, 2005, 176 (13-14) :1201-1206

[8]

Hong KS, 2009, B KOREAN CHEM SOC, V30, P1719

[9]

Jeong E.D., 2012, J KOREAN BATTERY SOC, V5, P1

[10]

Jeong E.D., 2011, J ANAL SCI TECHNOL, V2, P7

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