Jiaoyi Ning, Hongtao Yu, Shilin Mei, Yannik Schütze, Sebastian Risse, Nikolay Kardjilov, André Hilger, Ingo Manke, Annika Bande, Victor G. Ruiz, Joachim Dzubiella, Hong Meng, Yan Lu
- 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 wayHerein, 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.…
MetadatenAuthor details: | Jiaoyi Ning, Hongtao Yu, Shilin Mei, Yannik Schütze, Sebastian Risse, Nikolay Kardjilov, André Hilger, Ingo Manke, Annika Bande, Victor G. Ruiz, Joachim Dzubiella, Hong Meng, Yan LuORCiDGND |
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DOI: | https://doi.org/10.1002/cssc.202200434 |
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ISSN: | 1864-5631 |
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ISSN: | 1864-564X |
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Pubmed ID: | https://pubmed.ncbi.nlm.nih.gov/35524709 |
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Title of parent work (English): | ChemSusChem |
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Publisher: | Wiley |
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Place of publishing: | Weinheim |
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Publication type: | Article |
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Language: | English |
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Date of first publication: | 2022/05/07 |
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Publication year: | 2022 |
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Release date: | 2024/06/13 |
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Tag: | electrochemistry; energy storage; lithium-sulfur batteries; operando; organosulfur; studies |
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Volume: | 15 |
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Issue: | 14 |
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Article number: | e202200434 |
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Number of pages: | 10 |
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Funding institution: | CSC scholarship [202006010282]; National Science Foundation for Young; Scientists of China [21704040]; Deutsche Forschungsgesellschaft (DFG); [441211139, SPP 2248]; Projekt DEAL |
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Organizational units: | Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie |
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DDC classification: | 5 Naturwissenschaften und Mathematik / 54 Chemie / 540 Chemie und zugeordnete Wissenschaften |
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Peer review: | Referiert |
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Publishing method: | Open Access / Hybrid Open-Access |
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License (German): | CC-BY - Namensnennung 4.0 International |
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