Synthesis of sawtooth-like Li4Ti5O12 nanosheets as anode materials for Li-ion batteries

被引：193

作者：

Chen, Jizhang ^{[1
]}

Yang, Li ^{[1
]}

Fang, Shaohua ^{[1
]}

Tang, Yufeng ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, Sch Chem & Chem Engn, Shanghai 200240, Peoples R China

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 22期

基金：

国家高技术研究发展计划(863计划);

关键词：

Sawtooth-like Li4Ti5O12; Layered hydrous lithium titanate; Nanosheet; Hierarchical microsphere; Lithium-ion battery; SPINEL LI4TI5O12; LITHIUM INTERCALATION; INSERTION; TITANATE; MICROSPHERES; PERFORMANCE; NANOWIRES; NANORODS; OXIDES; ROUTE;

D O I：

10.1016/j.electacta.2010.06.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Hierarchical layered hydrous lithium titanate and Li4Ti5O12 microspheres assembled by nanosheets have been successfully synthesized via a hydrothermal process and subsequent thermal treatment. The electrochemical properties of the two samples have been investigated by galvanostatic methods. The former, with the obvious layered structure and a large surface area, delivers a reversible capacity of 180 mAhg(-1) after 200 cycles at 200 mAg(-1). As for Li4Ti5O12, with the intriguing and unique sawtooth-like morphology, it presents exceptional high rate performance and excellent cycling stability. Up to 132 mAhg(-1) is obtained after 200 cycles at 10,000 mAg(-1) (57 C), proving itself promising for high-rate applications. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：6596 / 6600

页数：5

共 28 条

[1] Rechargeable 3 V Li cells using hydrated lamellar manganese oxide [J].

Bach, S ;

PereiraRamos, JP ;

Baffier, N .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (11) :3429-3434

[2] Investigation of electrochemical lithium insertion in lamellar ternary oxides of the MxMnOy•zH2O group [J].

Bach, S ;

Pereira-Ramos, JP ;

Baffier, N .

JOURNAL OF POWER SOURCES, 1997, 68 (02) :586-589

[3] Self-assembled vanadium pentoxide (V2O5) hollow microspheres from nanorods and their application in lithium-ion batteries [J].

Cao, AM ;

Hu, JS ;

Liang, HP ;

Wan, LJ .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2005, 44 (28) :4391-4395

[4] 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

[5] STRUCTURE AND ELECTROCHEMISTRY OF THE SPINEL OXIDES LITI2O4 AND LI4/3TI5/3O4 [J].

COLBOW, KM ;

DAHN, JR ;

HAERING, RR .

JOURNAL OF POWER SOURCES, 1989, 26 (3-4) :397-402

[6]

GUO YG, 2008, ADV MATER, V9999, P1

[7] Fabrication of nano/micro hierarchical Fe2O3/Ni micrometer-wire structure and characteristics for high rate Li rechargeable battery [J].

Hosono, Eiji ;

Fujihara, Shinobu ;

Honma, Itaru ;

Ichihara, Masaki ;

Zhou, Haoshen .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2006, 153 (07) :A1273-A1278

[8] Effect of particle dispersion on high rate performance of nano-sized Li4Ti5O12 anode [J].

Jiang, Chunhai ;

Ichihara, Masaki ;

Honma, Itaru ;

Zhou, Haoshen .

ELECTROCHIMICA ACTA, 2007, 52 (23) :6470-6475

[9] Facile synthesis of nanocrystalline Li4Ti5O12 (spinel) exhibiting fast Li insertion [J].

Kavan, L ;

Grätzel, M .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (02) :A39-A42

[10] Spinel Li4Ti5O12 nanowires for high-rate Li-ion intercalation electrode [J].

Kim, Jinyoung ;

Cho, Jaephil .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2007, 10 (03) :A81-A84

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