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Fan X, Yuan R, Lei J, Lin X, Xu P, Cui X, Cao L, Zheng M, Dong Q. Turning Soluble Polysulfide Intermediates Back into Solid State by a Molecule Binder in Li-S Batteries. ACS NANO 2020; 14:15884-15893. [PMID: 33078941 DOI: 10.1021/acsnano.0c07240] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The shuttle effect of dissolved polysulfides produced during the operation of lithium-sulfur batteries is the most serious and fundamental problem among many challenges. We propose a strategy via in situ formation of a functionalized molecule with a dual-terminal coupling function to bind the dissolved polysulfide intermediates, thus turning them back into solid-state organopolysulfide complexes by molecule binding, and then the polysulfides can be pinned on the cathode firmly. The dual-terminal coupling functional molecule binder (MB), which is formed in situ by reaction between quinhydrone (QH) and lithium, can not only bind polysulfides by reversible chemical coordination but also promote the conversion of polysulfides during cycling synchronously. In theory, with the dual-terminal coupling function, MB can bind polysulfide intermediates to copolymerize them, forming -[MB-Li2Sn]- that has faster reaction activity and redox conversion kinetics in comparison with simple Li2Sn. With the MB, the Li-S battery exhibits a large initial capacity of 1347 mAh g-1 at 0.1 C. The remaining capacity of 963 mAh g-1 at 1 C shows no obvious decay for more than 400 cycles, and the retention of the first 300 cycles can reach 96.9%, in particular. This study delivers an alternative approach to resolving the shuttle effect and achieving excellent Li-S battery performance, with the potential significance going way beyond battery systems.
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Affiliation(s)
- Xiaoxiang Fan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Ruming Yuan
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Jie Lei
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Xiaodong Lin
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Pan Xu
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Xueyang Cui
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Lin Cao
- China Electronics Standarization Institute, Beijing 100007, China
| | - Mingsen Zheng
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
| | - Quanfeng Dong
- Department of Chemistry, College of Chemistry and Chemical Engineering, Collaborative Innovation Centre of Chemistry for Energy Materials (iChEM) and State Key Laboratory of Physical Chemistry of Solid Surfaces, Xiamen University, Xiamen, Fujian 361005, China
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Takakura R, Koyama K, Kuwata M, Yamada T, Sajiki H, Sawama Y. Hydroquinone and benzoquinone-catalyzed aqueous Knoevenagel condensation. Org Biomol Chem 2020; 18:6594-6597. [PMID: 32813006 DOI: 10.1039/d0ob01397h] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A Knoevenagel condensation of various aldehydes with malononitrile effectively proceeded in the presence of hydroquinone/benzoquinone mixed catalysts at room temperature in H2O. Furthermore, γ-deuterium-labeled α,β-unsaturated nitrile derivatives were also constructed via a deuteration of an aliphatic aldehyde in D2O using a basic resin and the subsequent Knoevenagel condensation.
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Affiliation(s)
- Ryoya Takakura
- Laboratory of Organic Chemistry, Gifu Pharmaceutical University 1-25-4 Daigakunishi, Gifu 501-1196, Japan.
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Asensio JA, Sánchez EM, Gómez-Romero P. Proton-conducting membranes based on benzimidazole polymers for high-temperature PEM fuel cells. A chemical quest. Chem Soc Rev 2010; 39:3210-39. [DOI: 10.1039/b922650h] [Citation(s) in RCA: 563] [Impact Index Per Article: 40.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li Q, Jensen JO, Savinell RF, Bjerrum NJ. High temperature proton exchange membranes based on polybenzimidazoles for fuel cells. Prog Polym Sci 2009. [DOI: 10.1016/j.progpolymsci.2008.12.003] [Citation(s) in RCA: 1047] [Impact Index Per Article: 69.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Dobrovol’skii YA, Leonova LS, Ukshe AE, Levchenko AV, Baranov AM, Vasil’ev AA. Portable sensors for hydrogen analysis. RUSS J GEN CHEM+ 2007. [DOI: 10.1134/s107036320704041x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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