Donut-Shaped Li4Ti5O12 Structures as a High Performance Anode Material for Lithium Ion Batteries

被引：82

作者：

Haridas, Anulekha K. ^{[1
,2
]}

Sharma, Chandra S. ^{[2
]}

Rao, Tata N. ^{[1
]}

机构：

[1] Int Adv Res Ctr Powder Met & New Mat ARCI, Ctr Nano Mat, Hyderabad, Andhra Pradesh, India

[2] Indian Inst Technol, Dept Chem Engn, Yeddumailaram, AP, India

来源：

SMALL | 2015年 / 11卷 / 03期

关键词：

HIGH-POWER; NANOFIBERS; ELECTRODES; STABILITY; ROUTE;

D O I：

10.1002/smll.201303894

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Figure Presented) Lithium titanate (LTO) spinel 3D porous sub-micrometer donuts synthesized by combined sol-gel and electrospraying reveal a wall thickness of 200-250 nm with grain sizes in the range of 60-100 nm. Electrochemical testing of sub-micrometer donuts in half-cell mode exhibited a reversible specific capacity of 141 mAh/g even after 200 cycles of charging and discharging at 1C rate. The LTO structures with nanograins effectively reduce the Li ion diffusion path length, providing easy charge and discharge with good cyclability. © 2014 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：290 / 294

页数：5

共 31 条

[1] Correlation of stress and structural evolution in Li4Ti5O12-based electrodes for lithium ion batteries [J].

Choi, Zungsun ;

Kramer, Dominik ;

Moenig, Reiner .

JOURNAL OF POWER SOURCES, 2013, 240 :245-251

[2] Synthesis and properties of Li4Ti5O12/C composite by a microwave-assisted method using PAM as both the template and the carbon source [J].

Dong, Hongyu ;

Yin, Yanhong ;

Zhang, Zhijun ;

Yang, Shuting .

PHYSICA SCRIPTA, 2012, 86 (05)

[3] A facile strategy to prepare nano-crystalline Li4Ti5O12/C anode material via polyvinyl alcohol as carbon source for high-rate rechargeable Li-ion batteries [J].

Fang, Wei ;

Cheng, XinQun ;

Zuo, PengJian ;

Ma, YuLin ;

Yin, Geping .

ELECTROCHIMICA ACTA, 2013, 93 :173-178

[4]

Fang W, 2013, INT J ELECTROCHEM SC, V8, P1949

[5] Nanosize Storage Properties in Spinel Li4Ti5O12 Explained by Anisotropic Surface Lithium Insertion [J].

Ganapathy, Swapna ;

Wagemaker, Marnix .

ACS NANO, 2012, 6 (10) :8702-8712

[6] THE SOL-GEL PROCESS [J].

HENCH, LL ;

WEST, JK .

CHEMICAL REVIEWS, 1990, 90 (01) :33-72

[7] A review on polymer nanofibers by electrospinning and their applications in nanocomposites [J].

Huang, ZM ;

Zhang, YZ ;

Kotaki, M ;

Ramakrishna, S .

COMPOSITES SCIENCE AND TECHNOLOGY, 2003, 63 (15) :2223-2253

[8] Nanoscale LiFePO4 and Li4Ti5O12 for High Rate Li-Ion Batteries [J].

Jaiswal, A. ;

Horne, C. R. ;

Chang, O. ;

Zhang, W. ;

Kong, W. ;

Wang, E. ;

Chern, T. ;

Doeff, M. M. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2009, 156 (12) :A1041-A1046

[9] Electrospraying route to nanotechnology: An overview [J].

Jaworek, A. ;

Sobczyk, A. T. .

JOURNAL OF ELECTROSTATICS, 2008, 66 (3-4) :197-219

[10] Synthesis of nanocrystalline Li4Ti5O12 by chemical lithiation of anatase nanocrystals and postannealing [J].

Jiang, Chunhai ;

Hosono, Eiji ;

Ichihara, Masaki ;

Honma, Itaru ;

Zhou, Haoshen .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (08) :A553-A556

← 1 2 3 4 →