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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202301320
|2 doi
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|a pubmed24n1184.xml
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|a (DE-627)NLM355342707
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|a (NLM)37029618
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Zhang, Biao
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Physicochemical Dual Cross-Linking Conductive Polymeric Networks Combining High Strength and High Toughness Enable Stable Operation of Silicon Microparticle Anodes
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|c 2023
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| 336 |
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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 20.07.2023
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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 The poor interfacial stability and insufficient cycling performance caused by undesirable stress hinder the commercial application of silicon microparticles (µSi) as next-generation anode materials for high-energy-density lithium-ion batteries. Herein, a conceptionally novel physicochemical dual cross-linking conductive polymeric network is designed combining high strength and high toughness by coupling the stiffness of poly(acrylic acid) and the softness of carboxyl nitrile rubber, which includes multiple H-bonds, by introducing highly branched tannic acid as a physical cross-linker. Such a design enables effective stress dissipation by folded molecular chains slipping and sequential cleavage of H-bonds, thus stabilizing the electrode interface and enhancing cycle stability. As expected, the resultant electrode (µSi/PTBR) delivers an unprecedented high capacity retention of ≈97% from 2027.9 mAh g-1 at the 19th to 1968.0 mAh g-1 at the 200th cycle at 2 A g-1 . Meanwhile, this unique stress dissipation strategy is also suitable for stabilizing SiOx anodes with a much lower capacity loss of ≈0.012% per cycle over 1000 cycles at 1.5 A g-1 . Atomic force microscopy analysis and finite element simulations reveal the excellent stress-distribution ability of the physicochemical dual cross-linking conductive polymeric network. This work provides an efficient energy-dissipation strategy toward practical high-capacity anodes for energy-dense batteries
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4 |
|a Journal Article
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4 |
|a conductive polymeric networks
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| 650 |
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4 |
|a energy-dissipation strategies
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| 650 |
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4 |
|a high strength and high toughness
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| 650 |
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4 |
|a physicochemical dual cross-linking
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| 650 |
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4 |
|a silicon anodes
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1 |
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|a Dong, Yanling
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Han, Jingrui
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhen, Yunjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Chuangang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Dong
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 29 vom: 08. Juli, Seite e2301320
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:35
|g year:2023
|g number:29
|g day:08
|g month:07
|g pages:e2301320
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202301320
|3 Volltext
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