Titania Containing Cathodes for Lithium-Sulfur Batteries: Case Studies by Electrochemical Impedance Spectroscopy

0549137 - ÚFCH JH 2022 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Kavan, Ladislav - Vinarčíková, Monika - Zlámalová, Magda - Zukalová, Markéta
Titania Containing Cathodes for Lithium-Sulfur Batteries: Case Studies by Electrochemical Impedance Spectroscopy.
ECS Transaction. Volume 105. Pennington: IOPscience, 2021, s. 169-176. ISSN 1938-6737.
[International Conference Advanced Batteries, Accumulators and Fuel Cells /22./. Brno (CZ), 22.08.2021-25.08.2021]
Grant CEP: GA ČR(CZ) GA20-03564S
Institucionální podpora: RVO:61388955
Klíčová slova: Electrochemical impedance spectroscopy * Lithium-Sulfur Batteries * Titanium dioxide
Obor OECD: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Způsob publikování: Omezený přístup

Electrochemical impedance spectroscopy is used to study novel cathode materials for lithium-sulfur batteries, based on commercial carbon and titania. Coin cells with Li anode are investigated at various stages of galvanostatic cycling. For comparison, also symmetrical coin cells with a pair of positive (S/C/TiO 2 ) or negative (Li) electrodes are studied. In addition to the application of titania as a barrier material impeding the polysulfide diffusion in the electrolyte solution, the inherent Li-insertion activity of TiO 2 (anatase) and its contribution to the sulfur redox reactions is discussed. © 2021 ECS - The Electrochemical Society.
Trvalý link: http://hdl.handle.net/11104/0325154