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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202208423
|2 doi
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|a pubmed24n1170.xml
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|a (DE-627)NLM351116354
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|a (NLM)36600458
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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 Lee, Eunryeol
|e verfasserin
|4 aut
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|a Nanocomposite Engineering of a High-Capacity Partially Ordered Cathode for Li-Ion Batteries
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|c 2023
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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
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|2 rdacarrier
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|a Date Completed 29.03.2023
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|a Date Revised 29.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Understanding the local cation order in the crystal structure and its correlation with electrochemical performances has advanced the development of high-energy Mn-rich cathode materials for Li-ion batteries, notably Li- and Mn-rich layered cathodes (LMR, e.g., Li1.2 Ni0.13 Mn0.54 Co0.13 O2 ) that are considered as nanocomposite layered materials with C2/m Li2 MnO3 -type medium-range order (MRO). Moreover, the Li-transport rate in high-capacity Mn-based disordered rock-salt (DRX) cathodes (e.g., Li1.2 Mn0.4 Ti0.4 O2 ) is found to be influenced by the short-range order of cations, underlining the importance of engineering the local cation order in designing high-energy materials. Herein, the nanocomposite is revealed, with a heterogeneous nature (like MRO found in LMR) of ultrahigh-capacity partially ordered cathodes (e.g., Li1.68 Mn1.6 O3.7 F0.3 ) made of distinct domains of spinel-, DRX- and layered-like phases, contrary to conventional single-phase DRX cathodes. This multi-scale understanding of ordering informs engineering the nanocomposite material via Ti doping, altering the intra-particle characteristics to increase the content of the rock-salt phase and heterogeneity within a particle. This strategy markedly improves the reversibility of both Mn- and O-redox processes to enhance the cycling stability of the partially ordered DRX cathodes (nearly ≈30% improvement of capacity retention). This work sheds light on the importance of nanocomposite engineering to develop ultrahigh-performance, low-cost Li-ion cathode materials
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|a Journal Article
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|a DFT calculations
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|a cation-disordered cathode materials
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|a high-energy Li-ion battereis
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|a local cation order
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|a nanocomposite nature
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|a Wi, Tae-Ung
|e verfasserin
|4 aut
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|a Park, Jaehyun
|e verfasserin
|4 aut
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|a Park, Sang-Wook
|e verfasserin
|4 aut
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|a Kim, Min-Ho
|e verfasserin
|4 aut
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|a Lee, Dae-Hyung
|e verfasserin
|4 aut
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|a Park, Byung-Chun
|e verfasserin
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|a Jo, Chiho
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|a Malik, Rahul
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|a Lee, Jong Hoon
|e verfasserin
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|a Shin, Tae Joo
|e verfasserin
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|a Kang, Seok Ju
|e verfasserin
|4 aut
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|a Lee, Hyun-Wook
|e verfasserin
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|a Lee, Jinhyuk
|e verfasserin
|4 aut
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|a Seo, Dong-Hwa
|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), 13 vom: 06. März, Seite e2208423
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:13
|g day:06
|g month:03
|g pages:e2208423
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|u http://dx.doi.org/10.1002/adma.202208423
|3 Volltext
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