Effects of the Fluorine-Substitution and Acid Treatment on the Electrochemical Performances of 0.3Li2MnO3·0.7LiMn0.60Ni0.25Co0.15O2 Cathode Material for Li-Ion Battery
作者： Seon-Min Kim , Bong-Soo Jin , Sang-Min Lee , Hyun-Soo Kim
DOI: 10.1016/J.ELECTACTA.2015.05.015
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摘要: Abstract The 0.3Li 2 MnO 3 ·0.7Li[Mn 0.60 Ni 0.25 Co 0.15 ]O 1.975 F 0.025 cathode materials were synthesized by using a co-precipitation process in Couette-Taylor reactor. Fluorine was substituted to facilitate the movement of lithium ions forming more compact SEI layer and reduce dissolution transition metals, lower internal impedance with charging/discharging cycling. In order chemically remove Li O, ·0.7Li [Mn composites preconditioned HNO solution. acid-treated showed low initial irreversible capacity higher discharge capacity. fluorine-substituted delivered capacities, but it gradually increased during cycles.
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sci-hub.se 参考文章(23)
M WAKIHARA, Chemical diffusion coefficients of lithium in LiMyMn2-yO4 (M = Co and Cr) Solid State Ionics. pp. 907- 909 ,(1996) , 10.1016/0167-2738(96)00213-5
G.-H. Kim, J.-H. Kim, S.-T. Myung, C. S. Yoon, Y.-K. Sun, Improvement of High-Voltage Cycling Behavior of Surface-Modified Li [ Ni1 ∕ 3Co1 ∕ 3Mn1 ∕ 3 ] O2 Cathodes by Fluorine Substitution for Li-Ion Batteries Journal of The Electrochemical Society. ,vol. 152, ,(2005) , 10.1149/1.1952747
S. Jouanneau, J. R. Dahn, Influence of LiF Additions on Li [ Ni x Co1 − 2x Mn x ] O 2 Materials Sintering, Structure, and Lithium Insertion Properties Journal of The Electrochemical Society. ,vol. 151, ,(2004) , 10.1149/1.1793712
S.-H. Kang, C. S. Johnson, J. T. Vaughey, K. Amine, M. M. Thackeray, The Effects of Acid Treatment on the Electrochemical Properties of 0.5 Li2MnO3 ∙ 0.5 LiNi0.44Co0.25Mn0.31O2 Electrodes in Lithium Cells Journal of The Electrochemical Society. ,vol. 153, ,(2006) , 10.1149/1.2194764
Decheng Li, Yuki Sasaki, Koichi Kobayakawa, Hideyuki Noguchi, Yuichi Sato, Preparation, morphology and electrochemical characteristics of LiNi1/3Mn1/3Co1/3O2 with LiF addition Electrochimica Acta. ,vol. 52, pp. 643- 648 ,(2006) , 10.1016/J.ELECTACTA.2006.05.044
Ching-Hsiang Chen, Chih-Jen Wang, Bing-Joe Hwang, Electrochemical performance of layered Li[NixCo1−2xMnx]O2 cathode materials synthesized by a sol–gel method Journal of Power Sources. ,vol. 146, pp. 626- 629 ,(2005) , 10.1016/J.JPOWSOUR.2005.03.079
J-S Kim, CS Johnson, MM Thackeray, Layered xLiMO2.(1 - x)Li2M'O3 electrodes for lithium batteries: a study of 0.95LiMn0.5Ni0.5O2.0.05Li2TiO3 Electrochemistry Communications. ,vol. 4, pp. 205- 209 ,(2002) , 10.1016/S1388-2481(02)00251-5
C.X. Ding, Q.S. Meng, L. Wang, C.H. Chen, Synthesis, structure, and electrochemical characteristics of LiNi1/3Co1/3Mn1/3O2 prepared by thermal polymerization Materials Research Bulletin. ,vol. 44, pp. 492- 498 ,(2009) , 10.1016/J.MATERRESBULL.2008.08.012
Jung-Min Kim, Hoon-Taek Chung, The first cycle characteristics of Li[Ni1/3Co1/3Mn1/3]O2 charged up to 4.7 V Electrochimica Acta. ,vol. 49, pp. 937- 944 ,(2004) , 10.1016/J.ELECTACTA.2003.10.005
D Song, The spinel phases LiAlyMn2−yO4 (y=0, 1/12, 1/9, 1/6, 1/3) and Li(Al,M)1/6Mn11/6O4 (M=Cr, Co) as the cathode for rechargeable lithium batteries Solid State Ionics. ,vol. 117, pp. 151- 156 ,(1999) , 10.1016/S0167-2738(98)00258-6