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231225s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201701494
|2 doi
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|a pubmed24n0910.xml
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|a (DE-627)NLM273133500
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|a (NLM)28635185
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|a DE-627
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|e rakwb
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|a eng
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|a Zu, Lianhai
|e verfasserin
|4 aut
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|a Antipulverization Electrode Based on Low-Carbon Triple-Shelled Superstructures for Lithium-Ion Batteries
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|c 2017
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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 18.07.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The realization of antipulverization electrode structures, especially using low-carbon-content anode materials, is crucial for developing high-energy and long-life lithium-ion batteries (LIBs); however, this technology remains challenging. This study shows that SnO2 triple-shelled hollow superstructures (TSHSs) with a low carbon content (4.83%) constructed by layer-by-layer assembly of various nanostructure units can withstand a huge volume expansion of ≈231.8% and deliver a high reversible capacity of 1099 mAh g-1 even after 1450 cycles. These values represent the best comprehensive performance in SnO2 -based anodes to date. Mechanics simulations and in situ transmission electron microscopy suggest that the TSHSs enable a self-synergistic structure-preservation behavior upon lithiation/delithiation, protecting the superstructures from collapse and guaranteeing the electrode structural integrity during long-term cycling. Specifically, the outer shells during lithiation processes are fully lithiated, preventing the overlithiation and the collapse of the inner shells; in turn, in delithiation processes, the underlithiated inner shells work as robust cores to support the huge volume contraction of the outer shells; meanwhile, the middle shells with abundant pores offer sufficient space to accommodate the volume change from the outer shell during both lithiation and delithiation. This study opens a new avenue in the development of high-performance LIBs for practical energy applications
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|a Journal Article
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|a SnO2
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|a antipulverization
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|a carbon
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|a lithium-ion batteries
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|a triple-shelled structure
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|a Su, Qingmei
|e verfasserin
|4 aut
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|a Zhu, Feng
|e verfasserin
|4 aut
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|a Chen, Bingjie
|e verfasserin
|4 aut
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|a Lu, Huanhuan
|e verfasserin
|4 aut
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|a Peng, Chengxin
|e verfasserin
|4 aut
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|a He, Ting
|e verfasserin
|4 aut
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|a Du, Gaohui
|e verfasserin
|4 aut
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|a He, Pengfei
|e verfasserin
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|a Chen, Kai
|e verfasserin
|4 aut
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|a Yang, Shihe
|e verfasserin
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|a Yang, Jinhu
|e verfasserin
|4 aut
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|a Peng, Huisheng
|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 29(2017), 34 vom: 18. Sept.
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|g volume:29
|g year:2017
|g number:34
|g day:18
|g month:09
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|u http://dx.doi.org/10.1002/adma.201701494
|3 Volltext
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