研究论文

碳包覆纳米SnO2锂离子电池负极材料合成及其性能研究

  • 杨同欢 ,
  • 郭永榔 ,
  • 周学酬 ,
  • 刘永梅
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  • 福州大学化学化工学院,福州 350108

收稿日期: 2008-03-31

  修回日期: 2008-05-17

  网络出版日期: 2009-01-20

Preparation of Amorphous Carbon-coated Nano-scale SnO2 and its Performance for AnodeMaterial of Lithium Ion Secondary Battery

  • YANG Tong-Huan ,
  • GUO Yong-Lang ,
  • ZHOU Xue-Chou ,
  • LIU Yong-Mei
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  • College of Chemistry and Chemical Engineering, Fuzhou University, Fuzhou 350108,China

Received date: 2008-03-31

  Revised date: 2008-05-17

  Online published: 2009-01-20

摘要

采用热解Sn(OH)4和淀粉混合物制备碳包覆纳米SnO2的方法合成了无定形碳包覆纳米SnO2.采用XRD、SEM、TEM、STEM-EDX以及充放电测试等手段对其结构、形貌和性能进行表征.结果表明,样品材料中无定形碳呈薄片状,被包覆的纳米SnO2(20~50nm)均匀分布在片状无定形碳中.产物中SnO2与碳的不同比例影响了产物的性能,样品(SnO2∶C=1∶1)首次循环的可逆比容量达到404mAh·g-1, 20次循环内无明显衰减.

本文引用格式

杨同欢 , 郭永榔 , 周学酬 , 刘永梅 . 碳包覆纳米SnO2锂离子电池负极材料合成及其性能研究[J]. 无机材料学报, 2009 , 24(1) : 147 -151 . DOI: 10.3724/SP.J.1077.2009.00147

Abstract

Amorphous carbon-coated nano-scale SnO2 powders were prepared by pyrolyzing the mixtures of starch and Sn(OH)4. The structure, morphology and properties of the sample were investigated by XRD, SEM,TEM,STEM-EDX and discharge-charge cycle. The results of XRD, SEM, TEM and STEM-EDX show that amorphous carbon of the sample is flaky and amorphous Carbon-coated SnO2 particles (20-50nm) are distributed in amorphous carbon uniformly. The results of discharge-charge cycle show that the different proportions between SnO2 and amorphous carbon lead to different discharge-charge performances. The specific capacity of the sample (SnO2∶C=1∶1) reaches 404mAh/g which is even stable in twentieth cycle.

参考文献

1]Nam S C, Yoon Y S, Cho W I, et al. Electrochem. Commun., 2001, 3(1): 6-10.
[2]Poizot P, Grugeon S, Grugeon S, et al. Nature, 2000, 407(6803): 496-499.
[3]Gao X P, Bao J L, Pan G L, et al. J. Phys. Chem. B, 2004, 108(18): 5547-5551.
[4]Xia Y Y, Sakai T, Fujieda T, et al. J. Electrochem. Soc., 2001, 148(5): A471-A481.
[5]Lee H Y, Jang S W, Lee S M, et al. J. Power Sources, 2002, 112(1): 8-12.
[6]Dong Q F, Wu C Z, Jin M G, et al. Solid State Ionics, 2004, 167(1-2): 49-54.
[7]Chiu K F, Liu K M, Lin H C, et al. J. Electrochem. Soc.,2007, 154(5): A433-A437.
[8]Tamura T, Kato Y, Mikami A, et al. J. Electrochem. Soc., 2006,153(12): A2227-A2231.
[9]Park M S, Kang Y M, Kim J H, et al. Carbon, 2008, 46(1): 35-40.
[10]Yuan L, Wang J, Chew S Y, et al. J. Power Sources, 174(2): 1183-1187.
[11]Wang T, Ma Z N, Xu F, et al. Electrochem. Commun., 2003, 5(7): 599-602.
[12]Li H, Huang X, Chen L. Solid State Ionics, 1999, 123(1-4): 189-197.
[13]何则强,熊利芝,肖卓炳,等(HE Ze-Qiang, et al). 无机材料学报(Journal of Inorganic Materials), 2006, 22(2): 253-257.
[14]Courtney I A, Dahn J R. J. Electrochem. Soc., 1997, 144(6): 2045-2050.
[15]Brousse T, Retoux R. J. Electrochem. Soc.,1998, 145(1): 1-4.
[16]Whitehead A H, Elliott J M, Owen J R. J. Power Sources, 1999, 81-82: 33-38.
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