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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201704851
|2 doi
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|a pubmed25n0929.xml
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|a (DE-627)NLM278757197
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|a (NLM)29210479
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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 Liu, Heguang
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Origin of Fracture-Resistance to Large Volume Change in Cu-Substituted Co3 O4 Electrodes
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|c 2018
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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 Completed 01.08.2018
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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 electrode materials conducive to conversion reactions undergo large volume change in cycles which restrict their further development. It has been demonstrated that incorporation of a third element into metal oxides can improve the cycling stability while the mechanism remains unknown. Here, an in situ and ex situ electron microscopy investigation of structural evolutions of Cu-substituted Co3 O4 supplemented by first-principles calculations is reported to reveal the mechanism. An interconnected framework of ultrathin metallic copper formed provides a high conductivity backbone and cohesive support to accommodate the volume change and has a cube-on-cube orientation relationship with Li2 O. In charge, a portion of Cu metal is oxidized to CuO, which maintains a cube-on-cube orientation relationship with Cu. The Co metal and oxides remain as nanoclusters (less than 5 nm) thus active in subsequent cycles. This adaptive architecture accommodates the formation of Li2 O in the discharge cycle and underpins the catalytic activity of Li2 O decomposition in the charge cycle
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|a Journal Article
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|a Cu-doping transition metal oxides
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4 |
|a cycling stability
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4 |
|a in situ transmission electron microscopy (TEM)
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| 650 |
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4 |
|a lithium-ion batteries
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| 700 |
1 |
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|a Li, Qianqian
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Zhenpeng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wolverton, Chris
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hersam, Mark C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Jinsong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dravid, Vinayak P
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 4 vom: 26. Jan.
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:30
|g year:2018
|g number:4
|g day:26
|g month:01
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|u http://dx.doi.org/10.1002/adma.201704851
|3 Volltext
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