Fast Polysulfide Conversion Catalysis and Reversible Anode Operation by A Single Cathode Modifier in Li-Metal Anode-Free Lithium-Sulfur Batteries
|Corresponding Author||Huang，Limin; Zhao，Dan; Yang Lee，Jim|
The two major issues confronting the commercialization of rechargeable lithium-sulfur (Li−S) batteries are the sluggish kinetics of the sulfur electrochemical reactions on the cathode and inadequate lithium deposition/stripping reversibility on the anode. They are commonly mitigated with additives designed specifically for the anode and the cathode individually. Here, we report the use of a single cathode modifier, InSe, which can effectively catalyse the polysulfide reactions on the cathode, and also improve the reversibility of Li deposition and removal on the anode through a LiInS/LiInSe containing solid electrolyte interface formed in situ by the Se and In ions dissolved in the electrolyte. The amounts of dissolved Se and In are small relative to the amount of InSe administered. The benefits of using this single modification approach were verified in Li-metal anode-free Li−S batteries with a LiS loading of 4 mg cm and a low electrolyte/LiS ratio of 7.5 μL mg. The resulting battery showed 60 % capacity retention after 160 cycles at the 0.2 C rate and an average Coulombic efficiency of 98.27 %, comparing very well with recent studies using separate electrode modifiers.
NI Journal Papers ; NI论文
Guangdong Provincial Key Laboratory Of Catalysis[2020B121201002];Energy Market Authority of Singapore[EMA-EP009-SEGC-020];Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20220818100212027];
|WOS Research Area|
|WOS Accession No|
|ESI Research Field|
Cited Times [WOS]:2
|Document Type||Journal Article|
|Department||Department of Chemistry|
1.Department of Chemical & Biomolecular Engineering,National University of Singapore,Singapore,4 Engineering Drive 4,117585,Singapore
2.Department of Chemistry,Southern University of Science and Technology,Shenzhen,1088 Xueyuan Avenue,518055,China
|First Author Affilication||Department of Chemistry|
|Corresponding Author Affilication||Department of Chemistry|
Zhao，Yun,Huang，Limin,Zhao，Dan,et al. Fast Polysulfide Conversion Catalysis and Reversible Anode Operation by A Single Cathode Modifier in Li-Metal Anode-Free Lithium-Sulfur Batteries[J]. Angewandte Chemie - International Edition,2023,62(36).
Zhao，Yun,Huang，Limin,Zhao，Dan,&Yang Lee，Jim.(2023).Fast Polysulfide Conversion Catalysis and Reversible Anode Operation by A Single Cathode Modifier in Li-Metal Anode-Free Lithium-Sulfur Batteries.Angewandte Chemie - International Edition,62(36).
Zhao，Yun,et al."Fast Polysulfide Conversion Catalysis and Reversible Anode Operation by A Single Cathode Modifier in Li-Metal Anode-Free Lithium-Sulfur Batteries".Angewandte Chemie - International Edition 62.36(2023).
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