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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201803765
|2 doi
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|a pubmed24n1308.xml
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|a (DE-627)NLM287822923
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|a (NLM)30144167
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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 |
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|a Xiao, Yao
|e verfasserin
|4 aut
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|a Exposing {010} Active Facets by Multiple-Layer Oriented Stacking Nanosheets for High-Performance Capacitive Sodium-Ion Oxide Cathode
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|c 2018
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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 27.02.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a As one of the most promising cathodes for rechargeable sodium-ion batteries (SIBs), O3-type layered transition metal oxides commonly suffer from inevitably complicated phase transitions and sluggish kinetics. Here, a Na[Li0.05 Ni0.3 Mn0.5 Cu0.1 Mg0.05 ]O2 cathode material with the exposed {010} active facets by multiple-layer oriented stacking nanosheets is presented. Owing to reasonable geometrical structure design and chemical substitution, the electrode delivers outstanding rate performance (71.8 mAh g-1 and 16.9 kW kg-1 at 50C), remarkable cycling stability (91.9% capacity retention after 600 cycles at 5C), and excellent compatibility with hard carbon anode. Based on the combined analyses of cyclic voltammograms, ex situ X-ray absorption spectroscopy, and operando X-ray diffraction, the reaction mechanisms behind the superior electrochemical performance are clearly articulated. Surprisingly, Ni2+ /Ni3+ and Cu2+ /Cu3+ redox couples are simultaneously involved in the charge compensation with a highly reversible O3-P3 phase transition during charge/discharge process and the Na+ storage is governed by a capacitive mechanism via quantitative kinetics analysis. This optimal bifunctional regulation strategy may offer new insights into the rational design of high-performance cathode materials for SIBs
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|a Journal Article
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|a capacitance
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|a facets
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|a nanosheets
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|a phase transitions
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|a sodium-ion batteries
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|a Wang, Peng-Fei
|e verfasserin
|4 aut
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|a Yin, Ya-Xia
|e verfasserin
|4 aut
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|a Zhu, Yan-Fang
|e verfasserin
|4 aut
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|a Niu, Yu-Bin
|e verfasserin
|4 aut
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|a Zhang, Xu-Dong
|e verfasserin
|4 aut
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|a Zhang, Jienan
|e verfasserin
|4 aut
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|a Yu, Xiqian
|e verfasserin
|4 aut
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|a Guo, Xiao-Dong
|e verfasserin
|4 aut
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| 700 |
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|a Zhong, Ben-He
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Yu-Guo
|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 (2018) vom: 24. Aug., Seite e1803765
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2018
|g day:24
|g month:08
|g pages:e1803765
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|u http://dx.doi.org/10.1002/adma.201803765
|3 Volltext
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|a AR
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|j 2018
|b 24
|c 08
|h e1803765
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