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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202306269
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|a pubmed25n1212.xml
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|a (DE-627)NLM363744908
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|a (NLM)37882357
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|a DE-627
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|a eng
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|a Zong, Yu
|e verfasserin
|4 aut
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|a Cation Defect-Engineered Boost Fast Kinetics of Two-Dimensional Topological Bi2 Se3 Cathode for High-Performance Aqueous Zn-Ion Batteries
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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 Revised 21.12.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a The challenge with aqueous zinc-ion batteries (ZIBs) lies in finding suitable cathode materials that can provide high capacity and fast kinetics. Herein, two-dimensional topological Bi2 Se3 with acceptable Bi-vacancies for ZIBs cathode (Cu-Bi2-x Se3 ) is constructed through one-step hydrothermal process accompanied by Cu heteroatom introduction. The cation-deficient Cu-Bi2-x Se3 nanosheets (≈4 nm) bring improved conductivity from large surface topological metal states contribution and enhanced bulk conductivity. Besides, the increased adsorption energy and reduced Zn2+ migration barrier demonstrated by density-functional theory (DFT) calculations illustrate the decreased Coulombic ion-lattice repulsion of Cu-Bi2-x Se3 . Therefore, Cu-Bi2-x Se3 exhibits both enhanced ion and electron transport capability, leading to more carrier reversible insertion proved by in situ synchrotron X-ray diffraction (SXRD). These features endow Cu-Bi2-x Se3 with sufficient specific capacity (320 mA h g-1 at 0.1 A g-1 ), high-rate performance (97 mA h g-1 at 10 A g-1 ), and reliable cycling stability (70 mA h g-1 at 10 A g-1 after 4000 cycles). Furthermore, quasi-solid-state fiber-shaped ZIBs employing the Cu-Bi2-x Se3 cathode demonstrate respectable performance and superior flexibility even under high mass loading. This work implements a conceptually innovative strategy represented by cation defect design in topological insulator cathode for achieving high-performance battery electrochemistry
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|a Journal Article
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|a cathodes
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|a cation defect
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|a in situ synchrotron X-ray diffraction
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|a two-dimensional bismuth selenide
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|a zinc ion batteries
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|a Chen, Haichao
|e verfasserin
|4 aut
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|a Wang, Jinsong
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|a Wu, Menghua
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|a Chen, Yu
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|a Wang, Liyu
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|4 aut
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|a Huang, Xinliang
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|4 aut
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|a He, Hongwei
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|a Ning, Xin
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|a Bai, Zhongchao
|e verfasserin
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|a Wen, Wen
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|4 aut
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|a Zhu, Daming
|e verfasserin
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|a Ren, Xiaochuan
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|a Wang, Nana
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|a Dou, Shixue
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 51 vom: 01. Dez., Seite e2306269
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:35
|g year:2023
|g number:51
|g day:01
|g month:12
|g pages:e2306269
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|u http://dx.doi.org/10.1002/adma.202306269
|3 Volltext
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