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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202005022
|2 doi
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|a pubmed24n1058.xml
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|a (DE-627)NLM317524534
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|a (NLM)33184954
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|a DE-627
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|e rakwb
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|a eng
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1 |
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|a Baek, Minsung
|e verfasserin
|4 aut
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|a New High Donor Electrolyte for Lithium-Sulfur Batteries
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|c 2020
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|a Text
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|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 29.12.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2020 Wiley-VCH GmbH.
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|a The unparalleled theoretical specific energy of lithium-sulfur (Li-S) batteries has attracted considerable research interest from within the battery community. However, most of the long cycling results attained thus far relies on using a large amount of electrolyte in the cell, which adversely affects the specific energy of Li-S batteries. This shortcoming originates from the low solubility of polysulfides in the electrolyte. Here, 1,3-dimethyl-2-imidazolidinone (DMI) is reported as a new high donor electrolyte for Li-S batteries. The high solubility of polysulfides in DMI and its activation of a new reaction route, which engages the sulfur radical (S3 •- ), enables the efficient utilization of sulfur as reflected in the specific capacity of 1595 mAh g-1 under lean electrolyte conditions of 5 μLelectrolyte mgsulfur -1 . Moreover, the addition of LiNO3 stabilizes the lithium metal interface, thereby elevating the cycling performance to one of the highest known for high donor electrolytes in Li-S cells. These engineered high donor electrolytes are expected to advance Li-S batteries to cover a wide range of practical applications, particularly by incorporating established strategies to realize the reversibility of lithium metal electrodes
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|a Journal Article
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|a 1,3-dimethyl-2-imidazolidinone
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|a lithium-sulfur batteries
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| 650 |
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4 |
|a shuttling effects
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4 |
|a sulfur radicals
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1 |
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|a Shin, Hyuksoo
|e verfasserin
|4 aut
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1 |
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|a Char, Kookheon
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Choi, Jang Wook
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 32(2020), 52 vom: 26. Dez., Seite e2005022
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:32
|g year:2020
|g number:52
|g day:26
|g month:12
|g pages:e2005022
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202005022
|3 Volltext
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