Synthesis and Electrochemical Performance of Si/C Composite Modified by PAni

Authors

Guang-hui ZHANG, State Key Laboratory for Surface Physics & Chemistry, China Academy of Engineering Physics, Mianyang 621907, Sichuan, China;Follow
Pei-kang SHEN, The State Key Laboratory of Optoelectronic Material and Technologies , Sun Yat-Sen University, Guangzhou 510275, China;
Ge SANG, State Key Laboratory for Surface Physics & Chemistry, China Academy of Engineering Physics, Mianyang 621907, Sichuan, China;
Ren-jin XIONG, State Key Laboratory for Surface Physics & Chemistry, China Academy of Engineering Physics, Mianyang 621907, Sichuan, China;

Corresponding Author

Guang-hui ZHANG(alexzhang084@yahoo.com.cn)

Abstract

Silicon/carbon (Si/C) composite materials were prepared through high-energy ball milling and high-temperature solid-phase method, and then coated with thin polyaniline (PAni) film by oxidation. The microstructure and component of the composites were characterized by SEM, XRD, IR, TG, and the electrochemical performance was investigated by cyclic voltammetry (CV) and galvanostatic charge-discharge tests. The results showed that the surface of PAni/Si/G/C composite was coating with complete lamellar structure of PAni film. Its reversible capacity was 784 mAh.g^-1and 690 mAh.g^-1 could be maintained after 50th charge-discharge cycles.

Graphical Abstract

Keywords

lithium-ion battery, anode materials, silicon, polyaniline

DOI Link

https://doi.org/10.61558/2993-074X.2111

Publication Date

2013-04-28

Online Available Date

2012-05-03

Revised Date

2012-04-23

Received Date

2012-03-20

Recommended Citation

Guang-hui ZHANG, Pei-kang SHEN, Ge SANG, Ren-jin XIONG. Synthesis and Electrochemical Performance of Si/C Composite Modified by PAni[J]. Journal of Electrochemistry, 2013 , 19(2): 184-188.
DOI: 10.61558/2993-074X.2111
Available at: https://jelectrochem.xmu.edu.cn/journal/vol19/iss2/9

References

[1] Skowronski J M, Knofczynski K, Yamada Y. Mechanism of lithium insertion in hollow carbon fibres-based anode[J]. Solid State Ionics, 2003, 157(1/4): 133-138.

[2] Liu Y, Hanai K, Yang J, et al. Silicon/carbon composites as anode materials for Li-ion batteries[J]. Electrochemical and Solid-State Letters, 2004, 7(10): 369-372.

[3] Yoshio M, Wang H Y, Fukuda K, et al. Carbon-coated Si as a lithium-ion battery anode material[J]. Journal of The Electrochemical Society, 2002, 149(12): 1598-1603.

[4] Wang G X, Ahn J H, Yao J, et al. Nanostructured Si-C composite anodes for lithium-ion batteries[J]. Electrochemistry Communication, 2004, 6(7): 689-692.

[4] Du L L(杜莉莉), Zhuan Q C(庄全超), Sun Z G(孙世刚), et al. Preparation and performance of carbon-coated Si/C composites[J]. Journal of Electrochemistry(电化学), 2011, 17(2): 139-143.

[5] Doh C H, Kim S I, Jeong K Y, et al. Synthesis of silicon-carbon by polyaniline coating and electrochemical properties of the Si-C|Li cell[J]. Bulletin of the Korean Chemical Society, 2006, 27(8): 1175-1180.

[6] Liu Y, Matsumura T, Imanishi N, et al. Preparation and characterization of Si/C composite coated with polyaniline as novel anodes for Li-ion batteries[J]. Electrochemical and Solid-State Letters, 2005, 8(11): 599-602.

[7] Wilson A M, Zank G, Eguchi K, et al. Pyrolysed silicon-containing polymers as high capacity anodes for lithium-ion batteries[J]. Journal of Power Sources, 1997, 68(2): 195-200.

[8] Fang C L(范长岭), Xu Z Y(徐仲榆), Su C Y(苏玉长). Dual function of polyaniline in positive electrodes of LiCoO2 and LiMn2O4[J]. The Chinese Journal of Nonferrous Metals(中国有色金属学报), 2011, 21(4): 796-803.

[9] He Y J. Preparation of polyaniline/nano-ZnO composites via a novel pickering emulsion route[J]. Powder Technology, 2004, 147(1/3): 59-63.

[10] Li X W, Cheng W, Bian C Q, et al. Surface modification of TiO2 nanopaticles by polyaniline[J]. Applied Surface Science, 2003, 217(1/4): 16-22.