间苯二酚–甲醛辅助溶胶–凝胶法制备纳米Li2MnSiO4/C正极材料

doi:10.3724/SP.J.1077.2013.12445

无机材料学报 ›› 2013, Vol. 28 ›› Issue (06): 635-638.DOI: 10.3724/SP.J.1077.2013.12445

间苯二酚–甲醛辅助溶胶–凝胶法制备纳米Li₂MnSiO₄/C正极材料

刘双科, 许静, 李德湛, 胡芸, 谢凯

(国防科学与技术大学航天与材料工程学院, 长沙 410073)

收稿日期:2012-07-15 修回日期:2012-09-03 出版日期:2013-06-20 网络出版日期:2013-05-20
作者简介:刘双科(1987–), 男, 硕士研究生. E-mail: liu_sk@139.com
基金资助:
湖南省高校科技创新团队支持计划

Li₂MnSiO₄/C Nanocomposite Prepared by Resorcinol-Formaldehyde Assisted Sol-Gel Method

LIU Shuang-Ke, XU Jing, LI De-Zhan, HU Yun, XIE Kai

LIU Shuang-Ke, XU Jing, LI De-Zhan, HU Yun, XIE Kai

Received:2012-07-15 Revised:2012-09-03 Published:2013-06-20 Online:2013-05-20
About author:LIU Shuang-Ke. E-mail: liu_sk@139.com
Supported by:
Program for Science and Technology Innovative Research Team in Higher Educational Institutions of Hunan Province

摘要/Abstract

摘要： 采用间苯二酚–甲醛辅助溶胶–凝胶法制备了纳米Li₂MnSiO₄/C正极材料, 采用X射线衍射(XRD)、扫描电镜(SEM)和恒流充放电测试等方法对材料的结构、形貌以及电化学性能进行了分析和表征。结果表明, 所制备的样品属于正交晶系Pmn21空间群, 物相纯度很高, 颗粒尺寸细小(50 nm左右)且分布均匀, 并具有良好的电化学性能, 首次放电比容量为105.7 mAh/g, 50次循环后容量保持率高达90.7%。XRD图谱显示, 经过充放电循环后, Li₂MnSiO₄能始终保持稳定的晶体结构, 表明间苯二酚-甲醛在烧结过程中形成的网络包覆碳层不仅提高了材料的电子电导率, 还维持了材料结构的稳定。

关键词: Li₂MnSiO₄, 间苯二酚-甲醛, 溶胶–凝胶法, 循环性能

Abstract: Li₂MnSiO₄/C nanocomposite was prepared by a resorcinol-formaldehyde assisted Sol-Gel method. The crystalline structure, morphology and electrochemical performances of the products were characterized by X-ray diffraction (XRD), scanning electron microscope (SEM) and galvanostatic charge/discharge test. The results demonstrate that the as-prepared nanocomposite has a highly pure Pmn21 orthorhombic structure with uniformly distributed particle size of about 50 nm and exhibits good electrochemical performance. Li₂MnSiO₄/C cathode can deliver an initial discharge capacity of 105.7 mAh/g with 90.7% capacity retention over 50 charge-discharge cycles. It is also found that the crystalline structure of Li₂MnSiO₄ almost remains stable after charge-discharge cycling, indicating that the coated carbon layer formed by pyrolysis of resorcinol-formaldehyde can not only enhance the electronic conductivity, but also maintain the structural stability of the Li₂MnSiO₄/C nanocomposite.

Key words: Li₂MnSiO₄, resorcinol-formaldehyde, Sol-Gel method, cycling performance

中图分类号:

TQ174

刘双科, 许静, 李德湛, 胡芸, 谢凯. 间苯二酚–甲醛辅助溶胶–凝胶法制备纳米Li₂MnSiO₄/C正极材料[J]. 无机材料学报, 2013, 28(06): 635-638.

LIU Shuang-Ke, XU Jing, LI De-Zhan, HU Yun, XIE Kai. Li₂MnSiO₄/C Nanocomposite Prepared by Resorcinol-Formaldehyde Assisted Sol-Gel Method[J]. Journal of Inorganic Materials, 2013, 28(06): 635-638.

参考文献

[1] 吴宇平, 戴晓兵, 马军旗, 等. 锂离子电池—应用与实践. 北京:化学工业出版社, 2004.

[2] Islam M S, Dominko R, Masquelier C, et al. Silicate cathodes for lithium batteries: alternatives to phosphates. J. Mater. Chem., 2011, 21(27): 9811–9818.

[3] Ghosh P, Mahanty S, Basu R N. Improved electrochemical performance of Li2MnSiO4/C composite synthesized by combustion technique. J. Electrochem. Soc., 2009, 156(8): A677–A681．

[4] Aravindan V, Ravi S, Kim W S, et al. Size controlled synthesis of Li2MnSiO4 nanoparticles: effect of calcination temperature and carbon content for high performance lithium batteries. J. Colloid Interface Sci., 2011, 355(2): 472–477.

[5] Dominko R, Bele M, Gaberscek M, et al. Structure and electrochemical performance of Li2MnSiO4 and Li2FeSiO4 as potential Li-battery cathode materials. Electrochem Commun., 2006, 8(2): 217–222．

[6] Li Y X, Gong Z L, Yang Y. Synthesis and characterization of Li2MnSiO4/C nanocomposite cathode material for lithium ion batteries. J. Power Sources, 2007, 174(2): 528–532.

[7] Fu L J,?Liu H,?Li C, et al. Electrode materials for lithium secondary batteries prepared by Sol-Gel methods. Prog. Mater. Sci., 2005, 50(7): 881–928.

[8] Belharouak I, Abouimrane A, Amine K. Structural and electrochemical characterization of Li2MnSiO4 cathode material. J. Phys. Chem. C, 2009, 113(48): 20733–20737.

[9] Yang Y, Fang H S, Li L P, et al. Synthesis and electrochemical performance of Li2MnSiO4/C composite cathode materials. Rare Met. Mater. Eng., 2008, 37(6): 1085–1088.

[10] Deng C, Zhang S, Fu B L, et al. Characterization of Li2MnSiO4 and Li2FeSiO4 cathode materials synthesized via a citric acid assisted Sol-Gel method. Mater. Chem. Phys., 2010, 120(1): 14–17.

[11] Aravindan V, Karthikeyan K, Ravi S, et al. Influence of carbon towards improved lithium storage properties of Li2MnSiO4 cathodes. J. Mater. Chem., 2011, 21(8): 2470–2475.

[12] Arroyo-de Dompablo M E, Dominko R, Gallardo-Amores J M, et al. On the energetic stability and electrochemistry of Li2MnSiO4 polymorphs. Chem. Mater., 2008, 20(17): 5574–5584.

[13] Dominko R. Li2MSiO4 (M=Fe and/or Mn) cathode materials. J. Power Sources, 2008, 184(2): 462–468.

[14] Aravindan V, Karthikeyan K, Lee J W, et al. Synthesis and improved electrochemical properties of Li2MnSiO4 cathodes. J. Phys. D: Appl. Phys., 2011, 44(15): 2001.

[15] Aravindan V, Karthikeyan K, Ravi S, et al. Adipic acid assisted sol–gel synthesis of Li2MnSiO4 nanoparticles with improved lithium storage properties. J. Mater. Chem., 2010, 20(35): 7340–7343.

[16] Muraliganth T, Stroukoff K R, Manthiram A. Microwave-solvothermal synthesis of nanostructured Li2MSiO4/C (M = Mn and Fe) cathodes for lithium-ion batteries. Chem. Mater., 2010, 22(20): 5754–5761.

间苯二酚–甲醛辅助溶胶–凝胶法制备纳米Li₂MnSiO₄/C正极材料

Li₂MnSiO₄/C Nanocomposite Prepared by Resorcinol-Formaldehyde Assisted Sol-Gel Method

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