LiCoxMn1-xPO4/C: A High Performing Nanocomposite Cathode Material for Lithium Rechargeable Batteries

被引：23

作者：

Nithya, Chandrasekaran ^{[1
]}

Thirunakaran, Ramasamy ^{[1
]}

Sivashanmugam, Arumugam ^{[1
]}

Gopukumar, Sukumaran ^{[1
]}

机构：

[1] Cent Electrochem Res Inst, Electrochem Power Syst Div, Karaikkudi 630006, Tamil Nadu, India

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2012年 / 7卷 / 01期

关键词：

cobalt; doping; intercalations; lithium; sol-gel processes; ELECTROCHEMICAL PERFORMANCE; ELECTRODE MATERIALS; SOLID-SOLUTIONS; LIMNPO4; COMPOSITES;

D O I：

10.1002/asia.201100485

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Pristine and Co-doped LiMnPO4 have been synthesized by the sol-gel method using glycine as a chelating agent and the carbon composites were obtained by the wet ball mill method. The advantage of this method is that it does not require an inert atmosphere (economically viable) and facilitates a shorter time for synthesis. The LiCo0.09Mn0.91PO4/C nanocomposites exhibit the highest coulombic efficiency of 99?%, delivering a capacity of approximately 160 mAhg-1 and retain a capacity of 96.3?% over the investigated 50 cycles when cycled between 34.9 V at a charge/discharge rate of 0.1?C.

引用

页码：163 / 168

页数：6

共 44 条

[11] Carbonate anions controlled morphological evolution of LiMnPO4 crystals [J].

Fang, Haisheng ;

Li, Liping ;

Yang, Yong ;

Yan, Guofeng ;

Li, Guangshe .

CHEMICAL COMMUNICATIONS, 2008, (09) :1118-1120

[12] Hydrothermal synthesis of electrochemically active LiMnPO4 [J].

Fang, Haisheng ;

Li, Liping ;

Li, Guangshe .

CHEMISTRY LETTERS, 2007, 36 (03) :436-437

[13] Recent developments in cathode materials for lithium ion batteries [J].

Fergus, Jeffrey W. .

JOURNAL OF POWER SOURCES, 2010, 195 (04) :939-954

[14] Nano-network electronic conduction in iron and nickel olivine phosphates [J].

Herle, PS ;

Ellis, B ;

Coombs, N ;

Nazar, LF .

NATURE MATERIALS, 2004, 3 (03) :147-152

[15]

Hong S.J., 2005, Journal of the American Ceramic Society, V78, P433

[16] Synthesis and characterization of nano-sized LiFePO4 cathode materials prepared by a citric acid-based sol-gel route [J].

Hsu, KF ;

Tsay, SY ;

Hwang, BJ .

JOURNAL OF MATERIALS CHEMISTRY, 2004, 14 (17) :2690-2695

[17] Electrochemical Performance of LiMnPO4 Synthesized with Off-Stoichiometry [J].

Kang, Byoungwoo ;

Ceder, Gerbrand .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2010, 157 (07) :A808-A811

[18] Synthesis of lithium manganese phosphate nanoparticle and its properties [J].

Kim, T. R. ;

Kim, D. H. ;

Ryu, H. W. ;

Moon, J. H. ;

Lee, J. H. ;

Boo, S. ;

Kim, J. .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 2007, 68 (5-6) :1203-1206

[19] High performance of LiMnPO4/C prepared by hydrothermal reaction [J].

Liu, A.F. ;

Liu, Y.F. ;

Hu, Z.H. ;

Wang, C.C. ;

Gao, G. ;

Xu, Y.Y. ;

Lei, L. .

Energy Materials: Materials Science and Engineering for Energy Systems, 2009, 4 (01) :44-48

[20] Fabrication and characterization of LiFePO4 nanotubes by a sol-gel-AAO template process [J].

Liu, Xiao-hong ;

Wang, Jin-qing ;

Zhang, Jun-yan ;

Yang, Sheng-rong .

CHINESE JOURNAL OF CHEMICAL PHYSICS, 2006, 19 (06) :530-534

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