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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202211965
|2 doi
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|a pubmed24n1180.xml
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|a (NLM)36920413
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Kang, Seongkoo
|e verfasserin
|4 aut
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|a A Mechanistic Insight into the Oxygen Redox of Li-Rich Layered Cathodes and their Related Electronic/Atomic Behaviors Upon Cycling
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|c 2023
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|a Text
|b txt
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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 26.10.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Li-rich cathodes are extensively investigated as their energy density is superior to Li stoichiometric cathode materials. In addition to the transition metal redox, this intriguing electrochemical performance originates from the redox reaction of the anionic sublattice. This new redox process, the so-called anionic redox or, more directly, oxygen redox in the case of oxides, almost doubles the energy density of Li-rich cathodes compared to conventional cathodes. Numerous theoretical and experimental investigations have thoroughly established the current understanding of the oxygen redox of Li-rich cathodes. However, different reports are occasionally contradictory, indicating that current knowledge remains incomplete. Moreover, several practical issues still hinder the real-world application of Li-rich cathodes. As these issues are related to phenomena resulting from the electronic to atomic evolution induced by unstable oxygen redox, a fundamental multiscale understanding is essential for solving the problem. In this review, the current mechanistic understanding of oxygen redox, the origin of the practical problems, and how current studies tackle the issues are summarized
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|a Journal Article
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|a Review
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|a Li-rich cathodes
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|a oxygen redox
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|a oxygen reorganization
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|a transition metal migration
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|a voltage hysteresis
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|a Choi, Dayeon
|e verfasserin
|4 aut
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1 |
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|a Lee, Hakwoo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Choi, Byungjin
|e verfasserin
|4 aut
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| 700 |
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|a Kang, Yong-Mook
|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 35(2023), 43 vom: 20. Okt., Seite e2211965
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g volume:35
|g year:2023
|g number:43
|g day:20
|g month:10
|g pages:e2211965
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|u http://dx.doi.org/10.1002/adma.202211965
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