Advanced electrochemical performances of Li4Ti5O12/Ag prepared by a facile synthesis route

被引：9

作者：

Ge, Hao ^{[1
]}

Chen, Li ^{[1
]}

Lin, Shen ^{[1
]}

Shi, Xicheng ^{[2
]}

Song, Xi-Ming ^{[1
]}

机构：

[1] Liaoning Univ, Liaoning Key Lab Green Synth & Preparat Chem Adv, Coll Chem, Shenyang 110036, Peoples R China

[2] Res Inst Chem Def, Beijing 100083, Peoples R China

来源：

IONICS | 2014年 / 20卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Spinel Li4Ti5O12; Grain size; Electrodes; Lithium-ion battery; LITHIUM-ION BATTERIES; NEGATIVE ELECTRODE MATERIALS; SPINEL ELECTRODES; ANODE MATERIAL; INSERTION; SYSTEM; CELLS;

D O I：

10.1007/s11581-014-1149-5

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：

Spinel Li4Ti5O12 coated by highly dispersed nanosized Ag particles was synthesized via a facile and effective ultrasonic-assisted method in this paper. X-ray diffraction (XRD) results indicated that Ag was not doped into the lattice of spinel Li4Ti5O12. The as-synthesized Li4Ti5O12/Ag exhibited enhanced electronic conductivity and excellent electrochemical performances. Its electronic conductivity was increased about four times compared to that of the pristine Li4Ti5O12. Even at 10 C rate, the as-synthesized Li4Ti5O12/Ag could keep 86.5 % of the reversible capacity at 1 C rate and its reversible capacity was higher than 140 mAhg(-1) whereas those were 75.3 % and 118 mAhg(-1) for the pristine Li4Ti5O12.

引用

页码：1189 / 1192

页数：4

共 20 条

[1] 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

[2] THE TEMPERATURE OF CAVITATION [J].

FLINT, EB ;

SUSLICK, KS .

SCIENCE, 1991, 253 (5026) :1397-1399

[3] Study on the effect of Li doping in spinel Li4+xTi5-xO12 (0 ≤ x ≤ 0.2) materials for lithium-ion batteries [J].

Ge, Hao ;

Li, Ning ;

Li, Deyu ;

Dai, Changsong ;

Wang, Dianlong .

ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (07) :1031-1034

[4] 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

[5] Study on the Theoretical Capacity of Spinel Lithium Titanate Induced by Low-Potential Intercalation [J].

Ge, Hao ;

Li, Ning ;

Li, Deyu ;

Dai, Changsong ;

Wang, Dianlong .

JOURNAL OF PHYSICAL CHEMISTRY C, 2009, 113 (16) :6324-6326

[6] Preparation and electrochemical performance of Ag doped Li4Ti5O12 [J].

Huang, SH ;

Wen, ZY ;

Zhu, XJ ;

Gu, ZH .

ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (11) :1093-1097

[7] Li4Ti5O12/Ag composite as electrode materials for lithium-ion battery [J].

Huang, Shahua ;

Wen, Zhaoyin ;

Zhang, Jingchao ;

Gu, Zhonghua ;

Xu, Xiaohe .

SOLID STATE IONICS, 2006, 177 (9-10) :851-855

[8] PHASE-EQUILIBRIA IN THE SYSTEM LI2O-TIO2 [J].

IZQUIERDO, G ;

WEST, AR .

MATERIALS RESEARCH BULLETIN, 1980, 15 (11) :1655-1660

[9] Phase transition in the spinel Li4Ti5O12 induced by lithium insertion -: Influence of the substitutions Ti/V, Ti/Mn, Ti/Fe [J].

Kubiak, P ;

Garcia, A ;

Womes, M ;

Aldon, L ;

Olivier-Fourcade, J ;

Lippens, PE ;

Jumas, JC .

JOURNAL OF POWER SOURCES, 2003, 119 :626-630

[10] Characteristics and electrochemical performance of supercapacitors with manganese oxide-carbon nanotube nanocomposite electrodes [J].

Lee, CY ;

Tsai, HM ;

Chuang, HJ ;

Li, SY ;

Lin, P ;

Tseng, TY .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (04) :A716-A720

← 1 2 →