Constructing Binder- and Carbon Additive-Free Organosulfur Cathodes Based on Conducting Thiol-Polymers through Electropolymerization for Lithium-Sulfur Batteries.

Autor: Ning J; Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany.; School of Advanced Materials, Peking University Shenzhen Graduate School, Peking University, Lishui road 2199, Nanshan district, Shenzhen, 518055, P. R. China., Yu H; Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany.; Guangdong Province Key Laboratory of Durability for Marine Civil Engineering, School of Civil Engineering, Shenzhen University, Shenzhen, 518060, P. R. China., Mei S; Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Schütze Y; Research Group Simulation of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany.; Institute of Chemistry and Biochemistry, Freie Universität, Arnimallee 22, 14195, Berlin, Germany., Risse S; Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Kardjilov N; Institute for Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Hilger A; Institute for Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Manke I; Institute for Applied Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Bande A; Theory of Electron Dynamics and Spectroscopy, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Ruiz VG; Research Group Simulation of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany., Dzubiella J; Research Group Simulation of Energy Materials, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany.; Physikalisches Institut, Albert-Ludwigs-Universität Freiburg, Hermann-Herder-Straße 3, 79104, Freiburg, Germany., Meng H; School of Advanced Materials, Peking University Shenzhen Graduate School, Peking University, Lishui road 2199, Nanshan district, Shenzhen, 518055, P. R. China., Lu Y; Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Hahn-Meitner Platz 1, 14109, Berlin, Germany.; Institute of Chemistry, University of Potsdam, 14467, Potsdam, Germany.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2022 Jul 21; Vol. 15 (14), pp. e202200434. Date of Electronic Publication: 2022 May 30.
DOI: 10.1002/cssc.202200434
Abstrakt: Herein, the concept of constructing binder- and carbon additive-free organosulfur cathode was proved based on thiol-containing conducting polymer poly(4-(thiophene-3-yl) benzenethiol) (PTBT). The PTBT featured the polythiophene-structure main chain as a highly conducting framework and the benzenethiol side chain to copolymerize with sulfur and form a crosslinked organosulfur polymer (namely S/PTBT). Meanwhile, it could be in-situ deposited on the current collector by electro-polymerization, making it a binder-free and free-standing cathode for Li-S batteries. The S/PTBT cathode exhibited a reversible capacity of around 870 mAh g -1 at 0.1 C and improved cycling performance compared to the physically mixed cathode (namely S&PTBT). This multifunction cathode eliminated the influence of the additives (carbon/binder), making it suitable to be applied as a model electrode for operando analysis. Operando X-ray imaging revealed the remarkable effect in the suppression of polysulfides shuttle via introducing covalent bonds, paving the way for the study of the intrinsic mechanisms in Li-S batteries.
(© 2022 The Authors. ChemSusChem published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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