LiCeO2 was prepared by a solid-state reaction method using microwave heat treatment and identified by X-ray diffractometry.LiCeO2 has monoclinic crystal structure whose conductivity and dielectric properties were studied over a range of frequency(42 Hz to 1 MHz)and temperatures(30-500℃)using ac technique of complex impedance analyzer HIOKI 3532.Combined impedance and modulus plots were used as tools to analyze the sample behaviour as a function of frequency at different temperatures.The d.c.conductivity(σdc)followed the Arrhenius relation.The modulus analysis and dielectrics studies showed the non-Debye dielectric relaxation nature.
参考文献
| [1] | Tarascon J M;Coowar F;Amatucci G;Shokoohi F K Guyomard D .Synthesis conditions and oxygen stoichiometry effects on Li insertion into the spinel LiMn2O4[J].Journal of the Electrochemical Society,1994,141:1421. |
| [2] | M. Broussely;P. Biensan;B. Simon .Lithium insertion into host materials: the key to success for Li ion batteries[J].Electrochimica Acta,1999(1/2):3-22. |
| [3] | Thackeray M M;Johnson P J;de Piccioto L A;Brace P G Goodenough J B .Electrochemical extraction of lithium from LiMn O[J].Materials Research Bulletin,1984,19:179. |
| [4] | Liu W R;Wu S H;Sheu H S .Preparation of spinel Li1.06Mn2O4-zClz cathode materials by the citrate gel method[J].Journal of Power Sources,2005,146:232. |
| [5] | Tarascon J M;Armand M .Issues and challenges facing rechargeable lithium batteries[J].Nature,2001,414:359. |
| [6] | Zhang S S;Jow T R .Optimization of synthesis condition and electrode fabrication for spinel LiMn2O4 cathode[J].Journal of Power Sources,2002,109:172. |
| [7] | 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. |
| [8] | TIAN Yanwen,KANG Xiaoxue,LIU Liying,XU Chaqing,QU Tao.Research on cathode material of Li-ion battery by yttrium doping[J].稀土学报（英文版）,2008(02):279-283. |
| [9] | Vores K S .Correlating ABO4 compound structures[J].Journal of Chemical Education,1962,39(09):566. |
| [10] | Selvasekarapandian S.;Vijayakumar M. .The ac impedance spectroscopy studies on LiDyO2[J].Materials Chemistry and Physics,2003(1):29-33. |
| [11] | Macdonald J R.Impedance Spectroscopy[M].New York:wiley,1987:79. |
| [12] | Irvine J T C;Sinclair D C;West A R .Electroceramics:characterization by impedance spectroscopy[J].Advanced Materials,1990,2:138. |
| [13] | Macdonald J R.Impedance Spectroscopy Emphasizing Solid Materials and Systems[M].New York:John Wiley and Sons,Inc,1987 |
| [14] | Le Meins JM.;Courbion G.;Bohnke O. .Ionic conductivity of crystalline and amorphous Na3Al2(PO4)(2)F-3[J].Solid state ionics,1998(1/2):67-75. |
| [15] | Jonsher A K .The universal dielectric response[J].Nature,1977,267:673. |
| [16] | Almond D P;West A R .Mobile ion concentrations in solid electrolytes from an analysis of a.c.conductivity[J].Solid State Ionics,1983,9-10:277. |
| [17] | Bharadwaja S S N;Krupanidhi S B .Study of AC electrical properties in mulfigrain antiferroelectric lead zirconate thin films[J].Thin Solid Films,2001,391:126. |
| [18] | Orliukas A.;Dindune A.;Kanepe Z.;Ronis J.;Kazakevicius E.;Kezionis A. .Synthesis, structure and peculiarities of ionic transport of Li1.6Mg0.3Ti1.7(PO4)(3) ceramics[J].Solid state ionics,2003(1/4):177-181. |
| [19] | Nagi K L;Martin S W .Correlation between the activation en-thalpy and Kohlrausch exponent for ionic conductivity in oxide glasses[J].Physical Review B,1986,40:10550. |
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