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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202209833
|2 doi
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|a pubmed24n1176.xml
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|a (DE-627)NLM352896574
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|a (NLM)36780277
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Wu, Jian-Fang
|e verfasserin
|4 aut
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|a Building K-C Anode with Ultrahigh Self-Diffusion Coefficient for Solid State Potassium Metal Batteries Operating at -20 to 120 °C
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|c 2023
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|a Text
|b txt
|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 Completed 20.04.2023
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|a Date Revised 20.04.2023
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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 Solid state potassium (K) metal batteries are intriguing in grid-scale energy storage, benefiting from the low cost, safety, and high energy density. However, their practical applications are impeded by poor K/solid electrolyte (SE) interfacial contact and limited capacity caused by the low K self-diffusion coefficient, dendrite growth, and intrinsically low melting point/soft features of metallic K. Herein, a fused-modeling strategy using potassiophilic carbon allotropes molted with K is demonstrated that can enhance the electrochemical performance/stability of the system via promoting K diffusion kinetics (2.37 × 10-8 cm2 s-1 ), creating a low interfacial resistance (≈1.3 Ω cm2 ), suppressing dendrite growth, and maintaining mechanical/thermal stability at 200 °C. A homogeneous/stable K stripping/plating is consequently implemented with a high current density of 2.8 mA cm-2 (at 25 °C) and a record-high areal capacity of 11.86 mAh cm-2 (at 0.2 mA cm-2 ). The enhanced K diffusion kinetics contribute to sustaining intimate interfacial contact, stabilizing the stripping/plating at high current densities. Full cells coupling ultrathin K-C composite anodes (≈50 µm) with Prussian blue cathodes and β/β″-Al2 O3 SEs deliver a high energy density of 389 Wh kg-1 with a retention of 94.4% after 150 cycles and fantastic performances at -20 to 120 °C
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|a Journal Article
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|a composite potassium anodes
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|a diffusion kinetics
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|a high-temperature stability
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|a interfacial stability
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|a solid state potassium batteries
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|a Zhou, Wang
|e verfasserin
|4 aut
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|a Wang, Zixing
|e verfasserin
|4 aut
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|a Wang, Wei-Wei
|e verfasserin
|4 aut
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|a Lan, Xuexia
|e verfasserin
|4 aut
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|a Yan, Hanghang
|e verfasserin
|4 aut
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|a Shi, Tuo
|e verfasserin
|4 aut
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|a Hu, Renzong
|e verfasserin
|4 aut
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|a Cui, Xiangyang
|e verfasserin
|4 aut
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|a Xu, Chaohe
|e verfasserin
|4 aut
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|a He, Xiangming
|e verfasserin
|4 aut
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|a Mao, Bing-Wei
|e verfasserin
|4 aut
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|a Zhang, Tao
|e verfasserin
|4 aut
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|a Liu, Jilei
|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 35(2023), 16 vom: 13. Apr., Seite e2209833
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:16
|g day:13
|g month:04
|g pages:e2209833
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|u http://dx.doi.org/10.1002/adma.202209833
|3 Volltext
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