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240613s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202406135
|2 doi
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|a pubmed24n1550.xml
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|a (DE-627)NLM373574339
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|a (NLM)38869350
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a Deng, Ding-Rong
|e verfasserin
|4 aut
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|a Accelerating the Rate-Determining Steps of Sulfur Conversion Reaction for Lithium-Sulfur Batteries Working at an Ultrawide Temperature Range
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 27.09.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Wide operation temperature is the crucial objective for an energy storage system that can be applied under harsh environmental conditions. For lithium-sulfur batteries, the "shuttle effect" of polysulfide intermediates will aggravate with the temperature increasing, while the reaction kinetics decreases sharply as the temperature decreasing. In particular, sulfur reaction mechanism at low temperatures seems to be quite different from that at room temperature. Here, through in situ Raman and electrochemical impedance spectroscopy studies, the newly emerged platform at cryogenic temperature corresponds to the reduction process of Li2S8 to Li2S4, which will be another rate-determining step of sulfur conversion reaction, in addition to the solid-phase conversion process of Li2S4 to Li2S2/Li2S at low temperatures. Porous bismuth vanadate (BiVO4) spheres are designed as sulfur host material, which achieve the rapid snap-transfer-catalytic process by shortening lithium-ion transport pathway and accelerating the targeted rate-determining steps. Such promoting effect greatly inhibits severe "shuttle effect" at high temperatures and simultaneously improves sulfur conversion efficiency in the cryogenic environment. The cell with the porous BiVO4 spheres as the host exhibits excellent rate capability and cycle performance under wide working temperatures
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|a Journal Article
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|a bismuth vanadate
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|a lithium‐sulfur batteries
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|a rate‐determinate step
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|a reaction mechanism
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|a wide temperature range
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|a Xiong, Hai-Ji
|e verfasserin
|4 aut
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| 700 |
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|a Luo, Yu-Lin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yu, Kai-Min
|e verfasserin
|4 aut
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| 700 |
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|a Weng, Jian-Chun
|e verfasserin
|4 aut
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| 700 |
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|a Li, Gui-Fang
|e verfasserin
|4 aut
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| 700 |
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|a Lei, Jie
|e verfasserin
|4 aut
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| 700 |
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|a Li, Yi
|e verfasserin
|4 aut
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|a Zheng, Ming-Sen
|e verfasserin
|4 aut
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| 700 |
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|a Wu, Qi-Hui
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 39 vom: 26. Sept., Seite e2406135
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:36
|g year:2024
|g number:39
|g day:26
|g month:09
|g pages:e2406135
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|u http://dx.doi.org/10.1002/adma.202406135
|3 Volltext
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