材料研究学报  2006, Vol. 20 Issue (4): 412-416

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Cr3+掺杂对Li1.05V3O8结构和电化学性能的影响

刘丽英　 田彦文　 翟玉春　 徐茶清

刘丽英; 田彦文; 翟玉春; 徐茶清 . Cr3+掺杂对Li1.05V3O8结构和电化学性能的影响[J]. 材料研究学报, 2006, 20(4): 412-416.

摘要 参考文献 相关文章 Metrics 全文: PDF(701 KB)   摘要: 以LiOH、V2O5和Cr(NO3)3·9H2O为原料,制备出锂离子电池正极材料Li1.05Crxv3-xO8(x=0,0.005,0.01,0.02,0.04,0.1),研究了Cr3+掺杂对Li1.05V3O8材料的结构、电导率和电化学性能的影响.结果表明:Li1.05CrxV3-xO8具有良好的层状晶体结构,Cr3+掺杂使(100)晶面的层间距增大;少量掺杂Cr3+不改变锂离子嵌入/脱出过程,随着掺杂量的增加,锂离子脱出过程由一步转化为两步;随着Cr3+掺杂量的增加,电导率呈现先增大而后又减小的趋势,可能是缺陷理论和静电吸引力共同作用的结果;当掺杂量x=0.005时,首次放电比容量达到296.5 mAh-g-1,比未掺杂C,+时提高了7.35%,平均放电电压提高了约0.1 V. Key words： 收稿日期: 1900-01-01      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 刘丽英 田彦文 翟玉春 徐茶清 44.8K 链接本文: https://www.cjmr.org/CN/Y2006/V20/I4/412 1 Wadsley, Acta Cryst,, 10, 261(1957) 2 DAI Jinxiang, Sam F.Y. Li, Gao Zhiqiang, Kok Siong Siow, Journal of Electrochemical Society, 145(9), 3057(1998) 3 K.West, B.Zachau-Christiansen, S.Skaarup, Y.Saidi, J.Barker, I.I.Olsen, R.Pynenburg, R.Koksbang, Journal of Electrochemical Society, 143(3), 820(1996) 4 X.Zhang, R.Frech, Electrochim. Acta, 43, 861(1998) 5 M.Pasqua, G.Pistoia, V.Manev, R.V.Moshtev, Journal of Electrochemical Society, 133, 32454(1986) 6 Serge V. Pouchko, Alexey K. Ivanov-Schitz, Frans G.B. Ooms, Joop Schoonman, Solid State Ionics, 144, 151(2001) 7 GAO Jian, JIANG Changyin, YING Jierong, WAN Chunrong, Journal of Inorganic Materials, 20(2), 379(2005) (高剑,姜长印,应皆荣,万春荣,无机材料学报,20(2), 379(2005)) 8 LIU Enhui, LI Xinhai, HE Zeqiang, HOU Chaohui, DENG Lingfeng, The Chinese Journal of NonferrousMetals, 14(5), 809(2004) (刘恩辉,李新海,何则强,侯朝辉,邓凌峰,中国有色金属学报, 14(5),809(2004)) 9 R.V.Chebiam, F.Prado, A.Manthiram, Journal of Electrochemical Soc., 148(1), A49(2001) 10 P.H.Duvigneaud, T.Segato, J. European Ceramic Society, 24, 1375(2004) 11 KAN Surong, LU Shigang, HUANG Songtao, Chinese Journal of Materials Research, 19(4), 349(2005) (阚素荣,卢世刚,黄松涛,材料研究学报,19(4),349(2005)) 12 HU Xiaohong, AI Xinping, YANG Hanxi, LI Shengxian, JIANG Kai, Chinese Journal of Power Sources, 27(3), 281(2003) (胡晓宏,艾新平,杨汉西,李升宪,蒋凯,电源技术,27(3), 281(2003)) 13 L.A.de Picciotto, K.T.Adendorff, D.C.Liles, M.M.Thackeraray, Solid State Ionics, 62, 297(1993) 14 WANG Changzhen, Solid Electrolyte and Chemical Sensors, First edition (Beijing: Metallurgy Industry Press, 2000) p.33 (王常珍,固体电解质和化学传感器(北京,冶金工业出版社, 2000)p．33) 15 J.Desilvestro, O.Haas, Journal of Electrochemical Society, 137, 5C(1990) 16 Jin Kawakita, Hirono Katagiri, Takashi Miura, Tomiya Kishi, Journal of Power Sources, 68, 680(1997)w No related articles found! Viewed Full text Abstract Cited   Shared      Discussed