Browse > Article
http://dx.doi.org/10.14478/ace.2022.1061

A Study on the Improvement of the Electrochemical Performance of Graphite Anode by Controlling Properties of the Coating Pitch  

Kim, Bo Ra (C1 Gas & Carbon Convergent Research Center, Korea Research Institute of Chemical Technology)
Kim, Ji Hong (C1 Gas & Carbon Convergent Research Center, Korea Research Institute of Chemical Technology)
Kang, Seok Chang (C1 Gas & Carbon Convergent Research Center, Korea Research Institute of Chemical Technology)
Im, Ji Sun (C1 Gas & Carbon Convergent Research Center, Korea Research Institute of Chemical Technology)
Publication Information
Applied Chemistry for Engineering / v.33, no.5, 2022 , pp. 459-465 More about this Journal
Abstract
A pitch coating method was proposed for the purpose of improving the electrochemical properties of natural graphite. The synthesis conditions of pitch coating were optimized via measuring electrochemical properties of pitch-coated graphite anodes. As the synthesis temperature increased, the thermal stability was improved in addition to an increase in the softening point and residual carbon weight. However, the synthesis temperature of 430 ℃ resulted in the synthesis of a large amount of NI (NMP Insoluble) due to excessive condensation reaction. As the surface uniformity and coating thickness increased due to high thermal stability, the initial coulombic efficiency and rate capability of the pitch-coated graphite were improved. However, the graphite coated with the pitch containing excessive NI showed lower electrochemical properties than the uncoated graphite. NI had low dispersibility and formed spheres after heat treatment, so it formed the heterogeneous and thicker SEI layer. The optimum conditions for forming a uniform surface and an appropriate coating layer were investigated.
Keywords
Pitch; Coating; Natural graphite; Anode; Lithium ion battery;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 A. Manthiram, An outlook on lithium ion battery technology, ACS Cent. Sci., 3, 1063-1069 (2017).   DOI
2 S. H. Choi, G. Nam, S. Chae, D. Kim, N. Kim, W. S. Kim, J. Ma, J. Sung, S. M. Han, and M. Ko, Robust pitch on silicon nanolayer-embedded graphite for suppressing undesirable volume expansion, Adv. Energy Mater., 9, 1803121 (2019).   DOI
3 B. C. Bai, J. G. Kim, J. H. Kim, C. W. Lee, Y. S. Lee, and J. S. Im, Blending effect of pyrolyzed fuel oil and coal tar in pitch production for artificial graphite, Carbon Lett., 25, 78-83 (2018).   DOI
4 Y. J. Han, J. U. Hwang, K. S. Kim, J. H. Kim, J. D. Lee, and J. S. Im, Optimization of the preparation conditions for pitch based anode to enhance the electrochemical properties of LIBs, J. Ind. Eng. Chem., 73, 241-247 (2019).   DOI
5 B. J. Kim, T. Kotegawa, Y. Eom, J. An, I. P. Hong, O. Kato, K. Nakabayashi, J. Miyawaki, B. C. Kim, and I. Mochida, Enhancing the tensile strength of isotropic pitch-based carbon fibers by improving the stabilization and carbonization properties of precursor pitch, Carbon, 99, 649-657 (2016).   DOI
6 D. Bar-Tow, E. Peled, and L. Burstein, A study of highly oriented pyrolytic graphite as a model for the graphite anode in Li-Ion batteries, J. Electrochem. Soc., 146, 824 (1999).   DOI
7 Y. J. Han, J. Kim, J. S. Yeo, J. C. An, I. P. Hong, K. Nakabayashi, J. Miyawaki, J. D. Jung, and S. H. Yoon, Coating of graphite anode with coal tar pitch as an effective precursor for enhancing the rate performance in Li-ion batteries: Effects of composition and softening points of coal tar pitch, Carbon, 94, 432-438 (2015).   DOI
8 Y. S. Ding, W. N. Li, S. Iaconetti, X. F. Shen, J. D. Carlo, F. S. Galasso, and S. L. Suib, Characteristics of graphite anode modified by CVD carbon coating, Surf. Coat. Technol., 200, 3041-3048 (2006).   DOI
9 I. Mochida, Y. Korai, C. H. Ku, F. Watanabe, and Y. Sakai, Chemistry of synthesis, structure, preparation and application of aromatic-derived mesophase pitch, Carbon, 38, 305-328 (2000).   DOI
10 J. Asenbauer, T. Eisenmann, M. Kuenzel, A. Kazzazi, Z. Chen, and D. Bresser, The success story of graphite as a lithium-ion anode material-fundamentals, remaining challenges, and recent developments including silicon (oxide) composites, Sustain. Energy Fuels, 4, 5387-5416 (2020).   DOI
11 J. Billaud, F. Bouville, T. Magrini, C. Villevieille, and A. R. Studart, Magnetically aligned graphite electrodes for high-rate performance Li-ion batteries, Nat. Energy, 1, 1-6 (2016).
12 J. G. Kim, J. H. Kim, B. J. Song, C. W. Lee, and J. S. Im, Synthesis and its characterization of pitch from pyrolyzed fuel oil (PFO), J. Ind. Eng. Chem., 36, 293-297 (2016).   DOI
13 J. H. Kim and H. G. Kim, Characterization of pitch derived from petroleum residue and coal-tar, Trans. Korean Hydrogen New Energy Soc., 27, 612-619 (2016).   DOI
14 X. H. Fan, W. Li, L. Chen, T. Ouyang, and Y. Fei, Sequential Extraction of Coal Tar Pitch and Structural Characterization of Enriched Large Polycyclic Aromatic Hydrocarbons, ChemistrySelect, 4, 4874-4882 (2019).   DOI
15 D. Y. Park, D. Y. Park, Y. S. Lim, and M. S. Kim, High rate capability of carbonaceous composites as anode electrodes for lithium-ion secondary battery, J. Ind. Eng. Chem., 15, 588-594 (2009).   DOI
16 W. Choi, H. C. Shin, J. M. Kim, J. Y. Choi, and W. S. Yoon, Modeling and applications of electrochemical impedance spectroscopy (EIS) for lithium-ion batteries, J. Electrochem. Sci. Technol., 11, 1-13 (2020).   DOI
17 Y. Castrillejo, A. Martinez, R. Pardo, and G. Haarberg, Electrochemical behaviour of magnesium ions in the equimolar CaCl2-NaCl mixture at 550 ℃, Electrochim. Acta, 42, 1869-1876 (1997).   DOI
18 J. Y. Yang, Y. S. Kuk, M. K. Seo, and B. S. Kim, Thermo-rheological behaviors of Phenolic Resins Blended with Petroleum-based Pitches for High Temperature Carbon Composites, Compos. Res., 33, 329-335 (2020).
19 Y. Lu, D. Kocaefe, Y. Kocaefe, X. A. Huang, and D. Bhattacharyay, The wettability of coke by pitches with different quinoline-insoluble contents, Fuel, 199, 587-597 (2017).   DOI