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The TiO2-Modified Separator Improving the Electrochemical Performance of Lithium-Sulfur Battery
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SYSNO ASEP 0549138 Document Type C - Proceedings Paper (int. conf.) R&D Document Type Conference Paper Title The TiO2-Modified Separator Improving the Electrochemical Performance of Lithium-Sulfur Battery Author(s) Zukalová, Markéta (UFCH-W) RID, SAI, ORCID
Vinarčíková, Monika (UFCH-W)
Pitňa Lásková, Barbora (UFCH-W) ORCID
Kavan, Ladislav (UFCH-W) RID, ORCIDSource Title ECS Transaction, Volume 105. - Pennington : IOPscience, 2021 - ISSN 1938-6737 Pages s. 183-189 Number of pages 7 s. Publication form Print - P Action International Conference Advanced Batteries, Accumulators and Fuel Cells /22./ Event date 22.08.2021 - 25.08.2021 VEvent location Brno Country CZ - Czech Republic Event type WRD Language eng - English Country US - United States Keywords Electrochemical impedance spectroscopy ; Electrolytes ; Lithium Batteries Subject RIV CG - Electrochemistry OECD category Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis) R&D Projects GA20-03564S GA ČR - Czech Science Foundation (CSF) Method of publishing Limited access Institutional support UFCH-W - RVO:61388955 EID SCOPUS 85122433594 DOI 10.1149/10501.0183ecst Annotation Electrochemical performance of activated carbon/sulfur composite cathode in the Li-S cell with standard and TiO2-modified separator is evaluated by cyclic voltammetry and galvanostatic chronopotentiometry. The modification of the separator by TiO2 impregnation has beneficial effect on the charge capacity of the activated carbon/sulfur cathode in the Li-S cell. The specific capacity of the cathode in the cell with TiO2-modified separator is 632 mAh g-1 (calculated from cyclic voltammetry) and 673 mAh g-1 (determined from galvanostatic chronopotentiometry). Facile impregnation of the separator with nanocrystalline TiO2 results in the 10-20 % stable increase of the charge capacity of corresponding activated carbon/sulfur cathode as compared to its electrochemical performance in the system with non-modified separator. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0325155
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