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231226s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202308881
|2 doi
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|a pubmed24n1277.xml
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|a eng
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|a Luo, Laibing
|e verfasserin
|4 aut
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|a Enabling Ultralow-Temperature (-70 °C) Lithium-Ion Batteries
|b Advanced Electrolytes Utilizing Weak-Solvation and Low-Viscosity Nitrile Cosolvent
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 01.02.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Low-temperature performance of lithium-ion batteries (LIBs) has always posed a significant challenge, limiting their wide application in cold environments. In this work, the high-performance LIBs working under ultralow-temperature conditions, which is achieved by employing the weak-solvation and low-viscosity isobutyronitrile as a cosolvent to tame the affinity between solvents and lithium ions, is reported. The as-prepared electrolytes exhibit a sufficiently high conductivity (1.152 mS cm-1 ) at -70 °C. The electrolytes enable LiCoO2 cathode and graphite anode to achieve high Coulombic efficiency of >99.9% during long-term cycling at room temperature, and to respectively achieve 75.8% and 100.0% of their room-temperature capacities at -40 °C. Even the LiCoO2 //graphite pouch cells can retain 68.7% of the room-temperature capacity when discharged at -70 °C, and present stable cycling performance at -40 and 60 °C. This work provides a solution for the development of advanced electrolytes to enable LIBs working at wide-temperatures range
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|a Journal Article
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|a electrolytes
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|a isobutyronitrile
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|a lithium-ion batteries
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|a low-temperature batteries
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|a weak interaction
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|a Chen, Kean
|e verfasserin
|4 aut
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|a Chen, Hui
|e verfasserin
|4 aut
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|a Li, Hui
|e verfasserin
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|a Cao, Ruoyu
|e verfasserin
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|a Feng, Xiangming
|e verfasserin
|4 aut
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|a Chen, Weihua
|e verfasserin
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|a Fang, Yongjin
|e verfasserin
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|a Cao, Yuliang
|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), 5 vom: 01. Feb., Seite e2308881
|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:5
|g day:01
|g month:02
|g pages:e2308881
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|u http://dx.doi.org/10.1002/adma.202308881
|3 Volltext
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