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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201605578
|2 doi
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|a pubmed24n0901.xml
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|a (DE-627)NLM270589392
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|a (NLM)28370747
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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 Cho, Woongrae
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Critical Role of Cations in Lithium Sites on Extended Electrochemical Reversibility of Co-Rich Layered Oxide
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|c 2017
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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 18.07.2018
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|a Date Revised 30.09.2020
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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 Only a very limited amount of the high theoretical energy density of LiCoO2 as a cathode material has been realized, due to its irreversible deterioration when more than 0.6 mol of lithium ions are extracted. In this study, new insights into the origin of such low electrochemical reversibility, namely the structural collapse caused by electrostatic repulsion between oxygen ions during the charge process are suggested. By incorporating the partial cation migration of LiNiO2 , which produces a screen effect of cations in the 3b-Li site, the phase distortion of LiCoO2 is successfully delayed which in turn expands its electrochemical reversibility. This study elucidates the relationship between the structural reversibility and electrochemical behavior of layered cathode materials and enables new design of Co-rich layered materials for cathodes with high energy density
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|a Journal Article
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|a electrochemical reversibility
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|a layered structures
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|a phase transition mechanism
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4 |
|a screen effects
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1 |
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|a Myeong, Seungjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Namhyung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lee, Sanghan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Youngki
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kim, Maengsuk
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kang, Seok Ju
|e verfasserin
|4 aut
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1 |
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|a Park, Noejung
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Oh, Pilgun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cho, Jaephil
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 21 vom: 24. Juni
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:29
|g year:2017
|g number:21
|g day:24
|g month:06
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|u http://dx.doi.org/10.1002/adma.201605578
|3 Volltext
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