Lithium-substituted LixMn2O4 (x = 0.98, 1.03, 1.08) spinel samples were synthesized by solid-state reaction.X-ray diffraction (XRD) patterns show that the prepared samples have a spinel structure with a space group of Fd (3) m. The cubic lattice parameter was determined from least-squares fitting of the XRD data. Li1.03Mn2O4 shows high capacity at both low and high current densities, while Li1.08Mn2O4 shows good cycling performance but relatively low capacity when cycled at both room and elevated temperatures. A variety of electrochemical methods were employed to investigate the electrochemical properties of these series of spinel LixMn2O4.
参考文献
[1] | Schilling O;Dahn J R .Thermodynamic stability of chemically delithiated Li(LixMn2-x)O4[J].Journal of the Electrochemical Society,1998,145(02):569. |
[2] | Li T;Qiu W;Zhao H;Liu J .Effect of cooling rate on electrochemical properties of spinel LiMn2O4synthesized by solid-state reaction[J].Materials Letters,2006,60(9-10):1251. |
[3] | Thackeray M M .Manganese oxides for lithium batteries[J].Progress in Solid State Chemistry,1997,25(1-2):1. |
[4] | Wang MJ;Navrotsky A .Thermochemistry of Li1+xMn2-xO4 (0 <= x <= 1/3) spinel[J].International Journal of Quantum Chemistry,2005(4):1182-1189. |
[5] | Yamada A.;Hinokuma K.;Tanaka M.;Miura K. .SYNTHESIS AND STRUCTURAL ASPECTS OF LIMN2O4+/-DELTA AS A CATHODE FOR RECHARGEABLE LITHIUM BATTERIES[J].Journal of the Electrochemical Society,1995(7):2149-2156. |
[6] | Berg H.;Liu W.;Farrington GC.;Thomas JO. .A neutron diffraction study of Ni substituted LiMn2O4[J].Solid state ionics,1998(1/2):165-168. |
[7] | G.G. Amatucci;N. Pereira;T. Zheng .Failure Mechanism and Improvement of the Elevated Temperature Cycling of LiMn_2O_4 Compounds Through the Use of the LiAl_xMn_(2-x)O_(4-z)F_z Solid Solution[J].Journal of the Electrochemical Society,2001(2):A171-A182. |
[8] | Chuangang Lin,Weihua Qiu,Qingguo Liu.Electrochemical Studies of Lithium Intercalation into Graphite Film Electrode for Li+-ion Batteries[J].北京科技大学学报(英文版),2000(01):48-50. |
[9] | Mohamedi M;Takahashi D;Uchiyama T;Itoh T,Nishizawa M,Uchida I .Explicit analysis of impedance spectra related to thin films of spinel LiMn2O4[J].Journal of Power Sources,2001,93(1-2):93. |
[10] | Xia Y;Zhou Y;Yoshio M .Capacity fading on cycling 4V Li/LiMn2O4 cells[J].Journal of the Electrochemical Society,1997,144(08):2593. |
[11] | A. Funabiki;M. Inaba;Z. Ogumi' S. -i. Yuasa;J. Otsuji;A. Tasaka .Impedance study on the electrochemical lithium intercalation into natural graphite powder[J].Journal of the Electrochemical Society,1998(1):172-178. |
[12] | Zhang S;Ding M;Xu K;Allen J,Jow,TR .Understanding solid electrolyte interface film formation on graphite electrodes[J].Electrochemical and Solid-State Letters,2001,4(12):A206. |
[13] | Xu K;Zhang S;Jow R .Electrochemical impedance study of graphite/electrolyte formed in LiBOB/PC electrolyte[J].Journal of Power Sources,2005,143(1-2):197. |
[14] | Dokko K;Nishizawa M;Mohamedi M;Umeda M,Uchida I,Akimoto J,Takahashi Y,Gotoh Y,Mizuta S .Electrochemical studies of Li-ion extraction and insertion of LiMn2O4 single crystal[J].Electrochem SolidSt,2001,4(09):Al51. |
[15] | Arora P;Popov B N;White R E .Electrochemical investigations of cobalt-doped LiMn2O4 as cathode material for lithium-ion batteries[J].Journal of the Electrochemical Society,1998,145(03):807. |
[16] | Y.J.Lee;F.Wang .~6Li and ~7Li magic-angle spinning nuclear magnetic resonance and in situ X-ray diffraction studies of the charging and discharging of Li_xMn_2O_4 at 4 V[J].Journal of the Electrochemical Society,2000(3):803-812. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%