Abstract
A facile method for the surface modification of high-voltage and high-temperature LiNi0.8Co0.1Mn0.1O2 cathode materials is demonstrated. In order to prepare polypyrrole (PPy) coating LiNi0.8Co0.1Mn0.1O2 material, the facile chemical polymerization method uses Fe(III) tosylate as oxidant and ethanol as solvent to avoid the side reaction with solvent. TEM depicts that LiNi0.8Co0.1Mn0.1O2 serves as hard template and the nanoscale PPy layer grows along the surface of LiNi0.8Co0.1Mn0.1O2 during the synthesis process. Because of flocculent and nanofiber coating layer, much improved rate performance, high temperature cycling, as well as high voltage performance are obtained. Cyclic voltammetry (CV) and electrochemical impedance spectroscopic (EIS) results demonstrate that the PPy coating layer effectively alleviates the side reactions between liquid electrolytes and LiNi0.8Co0.1Mn0.1O2 surface that are highly unstable at high temperature and high charge voltage.
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Sun Y-K, Myung S-T, Park B-C, Prakash J, Belharouak I, Amine K (2009) Nat Mater 8(4):320–324
Kim M-H, Shin H-S, Shin D, Sun Y-K (2006) J Power Sources 159(2):1328–1333
Kostecki R, McLarnon F (2004) Electrochem Solid-State Lett 7(10):A380–A383
Belharouak I, Vissers D, Amine K (2006) J Electrochem Soc 153(11):A2030–A2035
Bang HJ, Joachin H, Yang H, Amine K, Prakash J (2006) J Electrochem Soc 153(4):A731–A737
Sun Y-K, Chen Z, Noh H-J, Lee D-J, Jung H-G, Ren Y, Wang S, Yoon CS, Myung S-T, Amine K (2012) Nat Mater 11:942–947
Xiong X, Wang Z, Guo H, Zhang Q, Li X (2013) J Mater Chem A 1(4):1284–1288
Kim Y, Cho J (2007) J Electrochem Soc 154(6):A495–A499
Lee SM, Oh SH, Ahn JP, Cho WI, Jang H (2006) J Power Sources 159(2):1334–1339
Hu G-R, Deng X-R, Peng Z-D, Du K (2008) Electrochim Acta 53(5):2567–2573
Liu LL, Wang XJ, Zhu YS, Hu CL, Wu YP, Holze R (2013) J Power Sources 224:290–294
Wu C, Fang X, Guo X, Mao Y, Ma J, Zhao C, Wang Z, Chen L (2013) J Power Sources 231:44–49
Yin Z, Ding Y, Zheng Q, Guan L (2012) Electrochem Commun 20:40–43
Blinova NV, Stejskal J, Trchová M, Prokeš J, Omastová M (2007) Eur Polym J 43(6):2331–2341
Ham HT, Choi YS, Jeong N, Chung IJ (2005) Polymer 46(17):6308–6315
Sultana I, Rahman MM, Wang J, Wang C, Wallace GG, Liu H-K (2012) Solid State Ionics 215:29–35
Xiong X, Wang Z, Yan G, Guo H, Li X (2014) J Power Sources 245:183–193
Lee D-J, Scrosati B, Sun Y-K (2011) J Power Sources 196(18):7742–7746
Huang Y-J, Gao D-S, Lei G-T, Li Z-H, Su G-Y (2007) Mater Chem Phys 106(2–3):354–359
Son JT, Cairns EJ (2007) J Power Sources 166(2):343–347
Sun Y-K, Myung S-T, Yoon CS, Kim D-W (2009) Electrochem Solid-State Lett 12(8):A163–A166
Aurbach D, Markovsky B, Weissman I, Levi E, Ein-Eli Y (1999) Electrochim Acta 45(1–2):67–86
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This work is financially supported by the National Basic Research Program of China (2014CB643406) and Hunan Provincial Innovation Foundation for Postgraduate (CX2013A004).
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Xunhui Xiong and Dong Ding contributed equally to this work.
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Xiong, X., Ding, D., Wang, Z. et al. Surface modification of LiNi0.8Co0.1Mn0.1O2 with conducting polypyrrole. J Solid State Electrochem 18, 2619–2624 (2014). https://doi.org/10.1007/s10008-014-2519-7
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DOI: https://doi.org/10.1007/s10008-014-2519-7