Investigation on interfacial interaction and the origin of Fe3+ in LiFePO4/C
作者： Qinqin Chang , Guohua Yao , Fangfang Pan , Dongming Chen , Wen-lou Wang
DOI: 10.1016/J.ELECTACTA.2013.06.058
关键词:
摘要: Abstract The nano-structural LiFePO 4 /C composites with different interfacial structures were investigated. Fe L-edge XAS spectra indicated that the formation of 3+ was related to properties C-LiFePO . C K-edge and O show a distinct bonding character between carbon particle in coated /C. Density functional theory (DFT) calculation used analysis investigate mechanism electrochemical are characterized by cyclic voltammograms, constant current charge–discharge, impedance spectra. And it found sample A intimate /carbon interface shows better performance than B loose which had not chemical adsorption particles.
sci-hub.se 参考文章(46)
A. Augustsson, G. V. Zhuang, S. M. Butorin, J. M. Osorio-Guillén, C. L. Dong, R. Ahuja, C. L. Chang, P. N. Ross, J. Nordgren, J.-H. Guo, Electronic structure of phospho-olivines LixFePO4 (x=0,1) from soft-x-ray-absorption and -emission spectroscopies Journal of Chemical Physics. ,vol. 123, pp. 184717- 184717 ,(2005) , 10.1063/1.2107387
Marca M. Doeff, Yaoqin Hu, Frank McLarnon, Robert Kostecki, Effect of surface carbon structure on the electrochemical performance of LiFePO{sub 4} Electrochemical and Solid State Letters. ,vol. 6, ,(2003) , 10.1149/1.1601372
A.J. Nelson, T. van Buuren, Eric Miller, T.A. Land, C. Bostedt, N. Franco, P.K. Whitman, P.A. Baisden, L.J. Terminello, T.A. Callcott, X-ray Absorption Analysis of KDP Optics Journal of Electron Spectroscopy and Related Phenomena. ,vol. 114, pp. 873- 878 ,(2001) , 10.1016/S0368-2048(00)00267-X
Xin-Cun Tang, Lian-Xing Li, Qiong-Lin Lai, Xia-Wei Song, Li-Hui Jiang, Investigation on diffusion behavior of Li+ in LiFePO4 by capacity intermittent titration technique (CITT) Electrochimica Acta. ,vol. 54, pp. 2329- 2334 ,(2009) , 10.1016/J.ELECTACTA.2008.10.065
Yoshihiro Kadoma, Jung-Min Kim, Katsutoshi Abiko, Keitaro Ohtsuki, Koichi Ui, Naoaki Kumagai, Optimization of electrochemical properties of LiFePO4/C prepared by an aqueous solution method using sucrose Electrochimica Acta. ,vol. 55, pp. 1034- 1041 ,(2010) , 10.1016/J.ELECTACTA.2009.09.029
Rong Yang, Xiaoping Song, Mingshu Zhao, Fei Wang, Characteristics of Li0.98Cu0.01FePO4 prepared from improved co-precipitation Journal of Alloys and Compounds. ,vol. 468, pp. 365- 369 ,(2009) , 10.1016/J.JALLCOM.2008.01.072
J. Barker, M. Y. Saidi, J. L. Swoyer, Lithium Iron(II) Phospho-olivines Prepared by a Novel Carbothermal Reduction Method Electrochemical and Solid State Letters. ,vol. 6, ,(2003) , 10.1149/1.1544211
George Ting-Kuo Fey, Tung-Lin Lu, Morphological characterization of LiFePO4/C composite cathode materials synthesized via a carboxylic acid route Journal of Power Sources. ,vol. 178, pp. 807- 814 ,(2008) , 10.1016/J.JPOWSOUR.2007.09.039
H. Huang, S.-C. Yin, L. F. Nazar, Approaching Theoretical Capacity of LiFePO4 at Room Temperature at High Rates Electrochemical and Solid State Letters. ,vol. 4, pp. 170- 172 ,(2001) , 10.1149/1.1396695
Honggui Deng, Shuangling Jin, Liang Zhan, Wenming Qiao, Licheng Ling, Nest-like LiFePO4/C architectures for high performance lithium ion batteries Electrochimica Acta. ,vol. 78, pp. 633- 637 ,(2012) , 10.1016/J.ELECTACTA.2012.06.059