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
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
收藏
页码:163 / 168
页数:6
相关论文
共 44 条
[1]   Electrochemical performance of nanocomposite LiMnPO4/C cathode materials for lithium batteries [J].
Bakenov, Zhumabay ;
Taniguchi, Izumi .
ELECTROCHEMISTRY COMMUNICATIONS, 2010, 12 (01) :75-78
[2]  
Burma C. M., 2004, J ELECTROCHEM SOC, V151, pA1032
[3]   Electronically conductive phospho-olivines as lithium storage electrodes [J].
Chung, SY ;
Bloking, JT ;
Chiang, YM .
NATURE MATERIALS, 2002, 1 (02) :123-128
[4]   Toward understanding of electrical limitations (electronic, ionic) in LiMPO4 (M = Fe, Mn) electrode materials [J].
Delacourt, C ;
Laffont, L ;
Bouchet, R ;
Wurm, C ;
Leriche, JB ;
Morcrette, M ;
Tarascon, JM ;
Masquelier, C .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2005, 152 (05) :A913-A921
[5]   Preparation and electrochemical characterization of LiMnPO4/single-walled carbon nanotube composites as cathode material for Li-ion battery [J].
Dettlaff-Weglikowska, Urszula ;
Sato, Norio ;
Yoshida, Jun ;
Roth, Siegmar .
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2009, 246 (11-12) :2482-2485
[6]   Liquid-Phase Synthesis of Uniformly Nanosized LiMnPO4 Particles and Their Electrochemical Properties for Lithium-Ion Batteries [J].
Doi, Takayuki ;
Yatomi, Shota ;
Kida, Tetsuya ;
Okada, Shigeto ;
Yamaki, Jun-ichi .
CRYSTAL GROWTH & DESIGN, 2009, 9 (12) :4990-4992
[7]   Porous olivine composites synthesized by sol-gel technique [J].
Dominko, R ;
Bele, M ;
Gaberscek, M ;
Remskar, M ;
Hanzel, D ;
Goupil, JM ;
Pejovnik, S ;
Jamnik, J .
JOURNAL OF POWER SOURCES, 2006, 153 (02) :274-280
[8]   Effect of particle size on LiMnPO4 cathodes [J].
Drezen, Thierry ;
Kwon, Nam-Hee ;
Bowen, Paul ;
Teerlinck, Ivo ;
Isono, Motoshi ;
Exnar, Ivan .
JOURNAL OF POWER SOURCES, 2007, 174 (02) :949-953
[9]   Surface modification of thin-film based LiCoPO45Vcathode with metal oxide [J].
Eftekhari, A .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2004, 151 (09) :A1456-A1460
[10]   The possibility of manganese disorder in LiMnPO4 and its effect on the electrochemical activity [J].
Fang, Haisheng ;
Pan, Zhiyun ;
Li, Liping ;
Yang, Yong ;
Yan, Guofeng ;
Li, Guangshe ;
Wei, Shiqiang .
ELECTROCHEMISTRY COMMUNICATIONS, 2008, 10 (07) :1071-1073