Synthesis and electrochemical properties of sol-gel derived LiMn2O4cathode for lithium-ion batteries

稀有金属（英文版）, 2006, 25(z1): 100-104.

^1, , ^2, , ^3, , ^4, , ^5,

1.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

2.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

3.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

4.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

5.State Key Laboratory of Solidification Processing, School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China

基金项目: NCET YET the Specialized Research Fund for the Doctoral Program of Higher Education of MOE of China(20050699011)

Synthesis and electrochemical properties of sol-gel derived LiMn2O4cathode for lithium-ion batteries

Keywords： lithium manganese oxide

Spinel LiMn2O4 has been considered to be the most promising alternative cathode material for the new generation of lithium-ion batteries in terms of its low cost, non-toxicity and easy manufacture. The spinel lithium manganese mixed oxides were prepared from lithium nitrate, manganese nitrate and citric acid by asol-gel method and were characterized by thermogravimetric analysis, X-ray diffraction, cyclic voltammetry and constant current charging-discharging technique. The different sintering temperatures for different time have strong influence on the structure, initial discharge capacity and cycling performance of the lithium manganese oxide. It shows that the lithium manganese oxides sintered at 700 ℃ for 10 h have a single spinel structure and better electrochemical properties. The initial discharging capacity can be up to 125.9 mAh·g-1 , even after six cycles, it still retains 109.1 mAh·g-1 .

参考文献

[1]	A.G.Ritchie .Recent developments and future prospects for lithium rechargeable batteries[J].Journal of Power Sources,2001(1):1-4.
[2]	Tarascon J M;Armand M .Issues and challenges facing rechargeable lithium batteries[J].Nature,2001,414(6861):359.
[3]	Xia YY.;Yoshio M.;Zhou YH. .CAPACITY FADING ON CYCLING OF 4 V LI/LIMN2O4 CELLS[J].Journal of the Electrochemical Society,1997(8):2593-2600.
[4]	Amatucci G G;Schmutz C N;Blyr A .Materials'effects on the elevated and room temperature performance of C/LiMn2O4 Li-ion batteries[J].Journal of Power Sources,1997,69(01):11.
[5]	Amatucci G;Pasquier A D;Blyr A .The elevated temperature performance of the LiMn2O4/C system:failure and solutions[J].J Electrochimica Acta,1999,45(1-2):255.
[6]	Gao Y.;Dahn JR. .SYNTHESIS AND CHARACTERIZATION OF LI1+XMN2-XO4 FOR LI-ION BATTERY APPLICATIONS[J].Journal of the Electrochemical Society,1996(1):100-114.
[7]	Barboux P;Tarascon J M;Shokoohi F K .The use of acetates as precursors for the low-temperature synthesis of LiMn2O2 and LiCoO2intercalation compounds[J].Journal of Solid State Chemistry,1991,94(01):185.
[8]	Tsumura T;Shimizu A;Inagaki M .Lithium extraction/insertion from LiMn2O4 effect of crystallinity[J].J Solid State Ionics,1996,90(01):197.
[9]	Liu W.;Chaput F.;Dunn B.;Farrington GC. .SYNTHESIS AND ELECTROCHEMICAL STUDIES OF SPINEL PHASE LIMN2O4 CATHODE MATERIALS PREPARED BY THE PECHINI PROCESS[J].Journal of the Electrochemical Society,1996(3):879-884.
[10]	Lee YS.;Nahm KS.;Sun YK. .Synthesis of spinel LiMn2O4 cathode material prepared by an adipic acid-assisted sol-gel method for lithium secondary batteries[J].Solid state ionics,1998(3/4):285-294.
[11]	Prabaharan SRS.;Michael SS.;Massot M.;Julien C.;Saparil NB. .Soft-chemistry synthesis of electrochemically-active spinel LiMn2O4 for Li-ion batteries[J].Solid state ionics,1998(1/2):25-34.
[12]	Gummow R J;Kock A de;Thackeray M M .Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide(spinel)cells[J].J Solid State Ionics,1994,69(01):59.
[13]	Jiang ZP.;Abraham KM. .PREPARATION AND ELECTROCHEMICAL CHARACTERIZATION OF MICRON-SIZED SPINEL LIMN2O4[J].Journal of the Electrochemical Society,1996(5):1591-1598.

上一张下一张

计量

下载量()
访问量()

作者相关

在本站搜索
在百度学术搜索
在万方数据库搜索
在CNKI搜索

文章评分

您的评分：
1

0%
2

0%
3

0%
4

0%
5

0%

材料期刊网

Synthesis and electrochemical properties of sol-gel derived LiMn2O4cathode for lithium-ion batteries

参考文献