scholarly journals Study of the discharge/charge process of lithium–sulfur batteries by electrochemical impedance spectroscopy

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5283-5293 ◽  
Author(s):  
Xiangyun Qiu ◽  
Qingsong Hua ◽  
Lili Zheng ◽  
Zuoqiang Dai
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Reaction Mechanism ◽  
Electrochemical Impedance ◽  
Electrochemical Reaction ◽  
Schematic Model ◽  
Discharge Process ◽  
Charge Process ◽  
Lithium Sulfur Batteries ◽  
Sulfur Electrode ◽  
Lithium Sulfur

Schematic model for the electrochemical reaction mechanism of a sulfur electrode in the discharge process.

Investigations of lithium–sulfur batteries using electrochemical impedance spectroscopy

2013 ◽  
Vol 97 ◽  
pp. 42-51 ◽  
Author(s):  
Natalia A. Cañas ◽  
Kei Hirose ◽  
Brigitta Pascucci ◽  
Norbert Wagner ◽  
K. Andreas Friedrich ◽  
...  
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

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

2021 ◽  
Vol 105 (1) ◽  
pp. 169-176
Author(s):  
Ladislav Kavan ◽  
Monika Vinarcikova ◽  
Magda Zlámalová ◽  
Marketa Zukalova
Keyword(s):  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrolyte Solution ◽  
Cathode Materials ◽  
Redox Reactions ◽  
Electrochemical Impedance ◽  
Barrier Material ◽  
Lithium Sulfur Batteries ◽  
Commercial Carbon ◽  
Lithium Sulfur

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/TiO2) 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 TiO2 (anatase) and its contribution to the sulfur redox reactions is discussed.

Polymer lithium–sulfur batteries with a Nafion membrane and an advanced sulfur electrode

2015 ◽  
Vol 3 (30) ◽  
pp. 15683-15691 ◽  
Author(s):  
Xingwen Yu ◽  
Jorphin Joseph ◽  
Arumugam Manthiram
Keyword(s):  
Liquid Electrolyte ◽  
Nafion Membrane ◽  
Battery System ◽  
Lithium Sulfur Batteries ◽  
Lithiated Nafion ◽  
Sulfur Electrode ◽  
Lithium Sulfur ◽  
Polysulfide Shuttle

A non-porous, cation-selective, lithiated Nafion membrane effectively suppresses the polysulfide-shuttle. The Li–S battery system with the lithiated Nafion membrane exhibits significantly enhanced cyclability compared to the cells with the traditional liquid-electrolyte integrated porous separator.

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