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http://dx.doi.org/10.5229/JKES.2021.24.3.42

Study of Improvement Life and Electrochemical Characteristics for Lithium/sulfur Battery using Porous Carbon Sphere  

Hur, Sung Kyu (Reliability Test Center of VITZRO CELL)
Lim, Soo A (Dept. of Pharmaceutical engineering, Hoseo Univ.)
Publication Information
Journal of the Korean Electrochemical Society / v.24, no.3, 2021 , pp. 42-51 More about this Journal
Abstract
Dissociation into Lithium-polysulfide electrolyte due to repeated cycles during the Lithium/Sulfur battery reaction is a major problem of reduced battery lifespan. We searched for a porous carbon with a large specific surface area that infiltrated S to prevent liquid Lithium-polysulfide from being dissolved in electrolyte, induce adsorption of Lithium-polysulfide, and further increase conductivity. In order to obtain porous carbon spheres with a large specific surface area, the carbon spheres of 1939 m2/g were raised to 2200 m2/g through additional KOH treatment. In addition, through heat treatment with S, a carbon sulfur compound containing 75 wt% of S was fabricate and material analysis was conducted on the possibility of using the cathode material. The electrochemical characteristics of the Reference (622; sulfur: 60%, conductive material: 20%, binder: 20%) pouch cell and the pouch cell made using 75wt% of carbon sulfur compound were analyzed. 75wt% of carbon sulfur pouch cell showed a 20% increase in lifespan and 10% improvement in C-rate compared to the Reference pouch cell after 50 cycles.
Keywords
Li-S battery; cabon sphere; meso pore; cycle life; rate-capability;
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1 D. R. Sahalub, A. E. Foti and v. H. Smith, Jr. 'Molecular orbital study of structural changes on oxidation and reduction of S3, S4, S6, and S8' J. Am. Chem. Soc, 100, 7847-7859 (1978).   DOI
2 Sang-Cheol Han, Min-Sang Song, Ho Lee, Hyun-Seok Kim, Hyo-Jun Ahn,Jai-Young Lee 'Effect of Multiwalled Carbon Nanotubes on Electrochemical Properties of LithiumOSulfur Rechargeable Batteries' J. Electrochem. Society, 150(7), A889-A893, 2003.   DOI
3 H. C. Foley, 'Carbogenic molecular sieves: synthesis, properties and applications', Microporous Mater, 4, 407-433 (1995).   DOI
4 Zhixin Ma,Takashi Kyotani,Akira Tomita, 'Preparation of a high surface area microporous carbon having the structural regularity of Y zeolite', ChemComm, 38, 269-286 (2000).
5 H. Tamai, T. Kakii, Y. Hirota, T. Kumamoto, H. Yasuda,'Synthesis of Extremely Large Mesoporous Activated Carbon and Its Unique Adsorption for Giant Molecules' Chemistry of Materials, 8, 454-462 (1996).   DOI
6 I. Masashi, K. Manabu and M. Masayuki, 'Control of lithium metal anode cycleability by electrolyte temperature' J. Power Source, 81, 217-220 (1999).   DOI
7 M. Armand and J. M. Tarascon, 'Researchers must find a sustainable way of providing the power our modern lifestyles demand' Nature, 451, 652-657 (2008).   DOI
8 E. Plichata, M. Salomon, S. Slane, M. Uchiyoma, B. Chua and W. B. Ebner, 'Rechargeable Li/LixCoO2 cell' J. Power Source, 21, 25-31 (1987).   DOI
9 J. Dhan, U. Von Sacken, C. Michel, 'Structure and electrochemistry of Li1GyNiO2 and a new Li2NiO2 phase with the Ni(OH)2 structure', Solid State Ionics, 87, 44-53 (1990).   DOI
10 J. Shim, K. A. Striebel, 'Electrochemical analysis for cycle performance and capacity fading of a lithium-ion battery cycled at elevated temperature', J. Power Sources 112, 222-230 (2002).   DOI
11 T. Tetsu, T. Makoto and O. Noborn, 'Inhibition effect of covalently cross-linked gel electrolytes on lithium dendrite formation' Electrochimica Acta, 46, 1201-1205 (2001).   DOI
12 B. Scrosati, F. Croce and S. panero, 'Progress in lithium polymer battery R&D' J. Power Source, 100, 93-100 (2001).   DOI
13 C. W. Kwon, S. E. Cheon, J. M. Song, H. T. Kim, K. B. Kim, C. B. Shin and S. W. Kim, 'Characteristics of a lithium-polymer battery based on a lithium powder anode' J. Power Source, 93, 145-150 (2001).   DOI
14 C. R. Bansal, J. B. Donnet, and F. Stoeckli, Marcel Dekker, 'A review of: Active Carbon.' New York Active carbon, PP482 (1988).
15 B. M. Rao and J. A. Shropshire, 'Effect of Sulfur Impurities on Li/TiS2 Cells', J. Electrochem. Soc, 128, 5, 942-945 (1981).   DOI
16 J. M. Tarascon and M. Armand, 'Issues and challenges facing rechargeable lithium batteries' Nature, 414, 359-367 (2001).   DOI