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240523s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202405184
|2 doi
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|a pubmed24n1495.xml
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|a (DE-627)NLM372659063
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|a (NLM)38777567
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|a DE-627
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|a eng
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|a Zhao, Shuoqing
|e verfasserin
|4 aut
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|a Highly-Solvating Electrolyte Enables Mechanically Stable and Inorganic-Rich Cathode Electrolyte Interphase for High-Performing Potassium-Ion Batteries
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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
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|2 rdacarrier
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|a Date Revised 08.08.2024
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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 Cathode-electrolyte interphase (CEI) is crucial for the reversibility of rechargeable batteries, yet receives less attention compared to solid-electrolyte interphase (SEI). The prevalent weakly-solvating electrolyte is usually proposed from the standing point of obtaining robust SEI, however, the resultant weak ion-solvent interaction gives rise to excessive free solvents and forms thick CEI with high kinetic barriers, which is disadvantageous for interfacial stability at the high working voltage. Herein, a highly-solvating electrolyte is reported to immobilize free solvents by generating stable ternary complexes and facilitate the growth of homogeneous and ultrathin CEI to boost the electrochemical performances of potassium-ion batteries (PIBs). Through time-of-flight secondary ion mass spectrometry and cryogenic transmission electron microscopy, It is revealed that the deliberately coordinated complexes are the key to forming mechanically stable and inorganic-rich CEI with superior diffusion kinetics for high-performing PIBs. Coupling with a K0.5MnO2 cathode and a soft carbon (SC) anode, a high energy density (202.3 Wh kg-1) is achieved with an exceptional cycle lifespan (92.5% capacity retention after 500 cycles) in a SC||K0.5MnO2 full cell, setting new performance benchmarks for PIBs
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|a Journal Article
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|a cathode materials
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|a cathode–electrolyte interphase
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|a coordination environment
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|a interfacial stability
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|a potassium‐ion batteries
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|a Li, Guohao
|e verfasserin
|4 aut
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|a Zhang, Bohan
|e verfasserin
|4 aut
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|a Zhang, Shipeng
|e verfasserin
|4 aut
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|a Liu, Youxing
|e verfasserin
|4 aut
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|a Zhou, Jinhui
|e verfasserin
|4 aut
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|a Luo, Mingchuan
|e verfasserin
|4 aut
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| 700 |
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|a Guo, Shaojun
|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), 32 vom: 01. Aug., Seite e2405184
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:36
|g year:2024
|g number:32
|g day:01
|g month:08
|g pages:e2405184
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|u http://dx.doi.org/10.1002/adma.202405184
|3 Volltext
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