Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Electrochemical characteristics of active carbon prepared by chemical activation for anode of lithium ion battery

이차전지 음극용 화학적 활성화법으로 제조된 활성탄의 전기화학적 특성

  • Lee, Ho-Yong (Department of Chemical Engineering, Chungbuk National University) ;
  • Kim, Tae-Yeong (Department of Environmental Engineering, Chungbuk Provincial College) ;
  • Lee, Jong-Dae (Department of Chemical Engineering, Chungbuk National University)
  • 이호용 (충북대학교 화학공학과) ;
  • 김태영 (충북도립대학 환경생명과학과) ;
  • 이종대 (충북대학교 화학공학과)
  • Received : 2015.08.11
  • Accepted : 2015.09.24
  • Published : 2015.09.30
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Abstract

In this study, several kinds of active carbons with high specific surface area and micro pore structure were prepared from the coconut shell charcoal using chemical activation method. The physical property of prepared active carbon was investigated by experimental variables such as activating chemical agents to char coal ratio, flow rate of inert gas and temperature. It was shown that chemical activation with KOH and NaOH was successfully able to make active carbons with high surface area of $1900{\sim}2500m^2/g$ and mean pore size of 1.85~2.32 nm. The coin cell using water-based binder in the electrolyte of LiPF6 dissolved in mixed organic solvents (EC:DMC:EMC=1:1:1 vol%) showed better capacity than that of oil-based binder. Also, it was found that the coin cell of water-based binder shows an improved cycling performance and coulombic efficiency.

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References

  1. Y. Hwa, C. M. Park and H. J. Sohn, "Modified SiO as a high performance anode for Li-ion batteries", J. Power Sources, 222, 129-134 (2013). https://doi.org/10.1016/j.jpowsour.2012.08.060
  2. J. Wang, H. Zhao, J. He, C. Wang and J. Wang, "Nano-sized SiOx/C composite anode for lithium ion batteries", J. Power Sources, 196, 4811-4815 (2011). https://doi.org/10.1016/j.jpowsour.2011.01.053
  3. Y. Yang, W. J. Peng, H. J. Guo, Z. X. Wang, X. H. Li, Y. Y. Zhou and Y. J. Liu, "Effects of modification on performance of natural graphite coated by $SiO_2$ for anode of lithium ion batteries", Trans. Nonferrous Met. Soc. China, 17, 1339-1342 (2007). https://doi.org/10.1016/S1003-6326(07)60273-8
  4. W. Guopung, Z. Bolan, Y. Min, X. xiaoluo, Q. Meizheng, and Y. Zuolong, "A modified graphite anode with high initial efficiency and excellent cycle life expectation", Solid State lonics, 176(9-10), 905-909 (2005). https://doi.org/10.1016/j.ssi.2004.11.009
  5. T. Zhang, J. Gao, H. P. Zhang, L. C. Yang, Y. P. Wu and H. Q. Wu, "Preparation and electrochemical properties of core-shell Si/SiO nanocomposite as anode material for lithium ion batteries", Electrochem. Commun., 9, 886-890 (2007). https://doi.org/10.1016/j.elecom.2006.11.026
  6. H. Wu, Y. Cui, "Dsigning nanostructured Si anodes for high energy lithium ion batteries", Nano Today, 7, 414-429 (2012). https://doi.org/10.1016/j.nantod.2012.08.004
  7. Q. Si, K. Hanai, T. Ichikawa, A. Hirano, N. Imanisshi, O. Yamamoto and Y. Takeda, "High performance Si/C@CNF composite anode for solid-polymer lithium-ion batteries", J. Power Sources, 196, 6982-6986 (2011). https://doi.org/10.1016/j.jpowsour.2010.10.091
  8. S. Mitani, S. I. Lee, S. H. Yoon, Y. Korai, and I. Mochida, "Activation of raw pitch coke with alkali hydroxide to prepare high performance carbon for electric double layer capacitor", J. Power Sources, 133, 298-301 (2004). https://doi.org/10.1016/j.jpowsour.2004.01.047
  9. K. C. Roh, J. B. Park, C. T. Lee and C. W. Park, "Study on high density activated carbons for electrode materials of supercapacitor", J IND ENG CHEM., 18, 381-385 (2007).
  10. T. Ohta, I. T. Kim, M. Egashira, N. Yoshimoto and M. Morita, "Effects of electrolyte composition on the electrochemical activation of alkali-treated soft carbon as an electric double-layer capacitor electrode", J. Power Sources, 198, 408-415 (2011).
  11. Z. Liu, L. Ling, W. Qiao and L. Liu, "Effect of hydrogen on the mesopore development of pitch-based spherical activated carbon containing iron during activation by steam", Carbon, 37, 2063-2066 (1999). https://doi.org/10.1016/S0008-6223(99)00058-5
  12. J. Ozaki, N. Endo, W. Ohizumi, K. Igarashi, M. Nakahara and A. Oya, "Novel preparation method for the production of mesoporous carbon fiber from a polymer blend", Carbon, 35, 1031-1033 (1997). https://doi.org/10.1016/S0008-6223(97)89878-8
  13. J. Wang and S. Kaskel, "KOH activation of carbon-based materials for energy storage", J. Mater. Chem., 22, 23710 (2012) https://doi.org/10.1039/c2jm34066f
  14. M. A. Lillo-Rodenas, D. Lozano-Castello, D. Cazorla-Amoros, A. Linares-Solano, "Preparation of activated carbons from spanish anthracite II. Activation by NaOH", Carbon, 39, 751-759 (2001). https://doi.org/10.1016/S0008-6223(00)00186-X
  15. C. Y. Gang, Y. S. Sin, J. D. Lee, "The electrochemical characteristics of mesopore active carbon fiber for EDLC electrode", Korean Chem. Eng. Res., 49, 10-14 (2011). https://doi.org/10.9713/kcer.2011.49.1.010
  16. Q. Cheng, R. Yuge, K. Nakahara, N. Tamura, and S. Miyamoto, "KOH etched graphite for fast chargeable lithium-ion batteries", J. Power Sources, 284, 258-263 (2015). https://doi.org/10.1016/j.jpowsour.2015.03.036
  17. W. Shen, Z. Li and Y. Liu, "Surface Chemical Functional Groups Modification of Porous Carbon", Recent Patents on Chemical Engineering, 1(1), 27-40 (2008). https://doi.org/10.2174/2211334710801010027