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Design and tailoring of carbon-Al2O3 double coated nickel-based cation-disordered cathodes towards high-performance Li-ion batteries
Li-excess cation-disordered oxide cathodes have attracted increasing interests owing to their high energy density originated from cumulative cationic & anionic redox activity. In particular, Ni-based cation-disordered oxides exhibit high theoretical capacity for 2 e− reactions of Ni2+/Ni4+, whil...
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Published in: | Nano energy 2022-06, Vol.96, p.107071, Article 107071 |
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creator | Yu, Zhenlu Huang, He Liu, Yunjian Qu, Xingyu Zhou, Yu Dou, Aichun Su, Mingru Wu, Hong-Hui Zhang, Liang Dai, Kehua Guo, Zaiping Wan, Tao Li, Mengyao Chu, Dewei |
description | Li-excess cation-disordered oxide cathodes have attracted increasing interests owing to their high energy density originated from cumulative cationic & anionic redox activity. In particular, Ni-based cation-disordered oxides exhibit high theoretical capacity for 2 e− reactions of Ni2+/Ni4+, while the severe overlapping between Ni 3d and O 2p orbitals restricts Ni redox capacity and unstable O redox deteriorates the cycling performance. Benefiting from advanced data mining and high-throughput theoretical calculations technology, we demonstrated that the capacity and cycling performance of Ni-based cation-disordered oxide can be synergically enhanced by carbon/Al2O3 double coating and partial Al3+ substitution. The synergistic mechanism is unveiled via X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS) characterization together with first-principles calculations. It is confirmed that carbon coating increases the capacity by promoting the formation of peroxo-like species, which boosts O redox activity. Partial intercalating Al3+ enhances the Ni redox reaction by shortening the band overlap between Ni and O. Furthermore, Al2O3 coating and Al3+ doping improved the cycling stability of the cathode material owing to the shielding effect on side reaction and more stable O lattice. This synergistic strategy with nano-coating layer provides a promising pathway to accelerate the discovery of high-energy cation-disordered oxides based cathode materials.
[Display omitted]
•A novel coating strategy to improve cation-disordered cathode performance is proposed.•Cation-disordered cathode with enhanced capacity and cycling performance is achieved.•Carbon/Al2O3 double coating and Al3+ doping improve the redox activities of Ni and O.•O2 release upon cycling is inhibited in the carbon/Al2O3 double-coated sample. |
doi_str_mv | 10.1016/j.nanoen.2022.107071 |
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[Display omitted]
•A novel coating strategy to improve cation-disordered cathode performance is proposed.•Cation-disordered cathode with enhanced capacity and cycling performance is achieved.•Carbon/Al2O3 double coating and Al3+ doping improve the redox activities of Ni and O.•O2 release upon cycling is inhibited in the carbon/Al2O3 double-coated sample.</description><identifier>ISSN: 2211-2855</identifier><identifier>DOI: 10.1016/j.nanoen.2022.107071</identifier><language>eng</language><publisher>Elsevier Ltd</publisher><subject>Anionic redox ; Cation-disordered cathode ; Cycling performance ; Double coating ; Li-ion batteries</subject><ispartof>Nano energy, 2022-06, Vol.96, p.107071, Article 107071</ispartof><rights>2022 Elsevier Ltd</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c306t-aa156527363b4905137ca47e6afd298810efc0fd3c0cf4e0ca3b448be81968f53</citedby><cites>FETCH-LOGICAL-c306t-aa156527363b4905137ca47e6afd298810efc0fd3c0cf4e0ca3b448be81968f53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Yu, Zhenlu</creatorcontrib><creatorcontrib>Huang, He</creatorcontrib><creatorcontrib>Liu, Yunjian</creatorcontrib><creatorcontrib>Qu, Xingyu</creatorcontrib><creatorcontrib>Zhou, Yu</creatorcontrib><creatorcontrib>Dou, Aichun</creatorcontrib><creatorcontrib>Su, Mingru</creatorcontrib><creatorcontrib>Wu, Hong-Hui</creatorcontrib><creatorcontrib>Zhang, Liang</creatorcontrib><creatorcontrib>Dai, Kehua</creatorcontrib><creatorcontrib>Guo, Zaiping</creatorcontrib><creatorcontrib>Wan, Tao</creatorcontrib><creatorcontrib>Li, Mengyao</creatorcontrib><creatorcontrib>Chu, Dewei</creatorcontrib><title>Design and tailoring of carbon-Al2O3 double coated nickel-based cation-disordered cathodes towards high-performance Li-ion batteries</title><title>Nano energy</title><description>Li-excess cation-disordered oxide cathodes have attracted increasing interests owing to their high energy density originated from cumulative cationic & anionic redox activity. In particular, Ni-based cation-disordered oxides exhibit high theoretical capacity for 2 e− reactions of Ni2+/Ni4+, while the severe overlapping between Ni 3d and O 2p orbitals restricts Ni redox capacity and unstable O redox deteriorates the cycling performance. Benefiting from advanced data mining and high-throughput theoretical calculations technology, we demonstrated that the capacity and cycling performance of Ni-based cation-disordered oxide can be synergically enhanced by carbon/Al2O3 double coating and partial Al3+ substitution. The synergistic mechanism is unveiled via X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS) characterization together with first-principles calculations. It is confirmed that carbon coating increases the capacity by promoting the formation of peroxo-like species, which boosts O redox activity. Partial intercalating Al3+ enhances the Ni redox reaction by shortening the band overlap between Ni and O. Furthermore, Al2O3 coating and Al3+ doping improved the cycling stability of the cathode material owing to the shielding effect on side reaction and more stable O lattice. This synergistic strategy with nano-coating layer provides a promising pathway to accelerate the discovery of high-energy cation-disordered oxides based cathode materials.
[Display omitted]
•A novel coating strategy to improve cation-disordered cathode performance is proposed.•Cation-disordered cathode with enhanced capacity and cycling performance is achieved.•Carbon/Al2O3 double coating and Al3+ doping improve the redox activities of Ni and O.•O2 release upon cycling is inhibited in the carbon/Al2O3 double-coated sample.</description><subject>Anionic redox</subject><subject>Cation-disordered cathode</subject><subject>Cycling performance</subject><subject>Double coating</subject><subject>Li-ion batteries</subject><issn>2211-2855</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KQzEQhbNQsGjfwEVeIDXJ_e1GKPUXCt3oOsxNJm3qbVKSqLj3wY1c185mmMM5w8xHyLXgC8FFe3NYePAB_UJyKYvU8U6ckZmUQjDZN80Fmad04KXaRnRCzsj3HSa38xS8oRncGKLzOxos1RCH4NlqlNuKmvA-jEh1gIyGeqffcGQDpDJoyK74jEshGoyTsg8GE83hE6JJdO92e3bCaEM8gtdIN46VDB0gZ4wO0xU5tzAmnP_1S_L6cP-yfmKb7ePzerVhuuJtZgCiaRvZVW011EveiKrTUHfYgjVy2feCo9XcmkpzbWvkGoqv7gfsxbLtbVNdknraq2NIKaJVp-iOEL-U4OoXoDqoCaD6BagmgCV2O8Ww3PbhMKqkHZZHjIuoszLB_b_gBxEkf08</recordid><startdate>20220601</startdate><enddate>20220601</enddate><creator>Yu, Zhenlu</creator><creator>Huang, He</creator><creator>Liu, Yunjian</creator><creator>Qu, Xingyu</creator><creator>Zhou, Yu</creator><creator>Dou, Aichun</creator><creator>Su, Mingru</creator><creator>Wu, Hong-Hui</creator><creator>Zhang, Liang</creator><creator>Dai, Kehua</creator><creator>Guo, Zaiping</creator><creator>Wan, Tao</creator><creator>Li, Mengyao</creator><creator>Chu, Dewei</creator><general>Elsevier Ltd</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20220601</creationdate><title>Design and tailoring of carbon-Al2O3 double coated nickel-based cation-disordered cathodes towards high-performance Li-ion batteries</title><author>Yu, Zhenlu ; Huang, He ; Liu, Yunjian ; Qu, Xingyu ; Zhou, Yu ; Dou, Aichun ; Su, Mingru ; Wu, Hong-Hui ; Zhang, Liang ; Dai, Kehua ; Guo, Zaiping ; Wan, Tao ; Li, Mengyao ; Chu, Dewei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c306t-aa156527363b4905137ca47e6afd298810efc0fd3c0cf4e0ca3b448be81968f53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>Anionic redox</topic><topic>Cation-disordered cathode</topic><topic>Cycling performance</topic><topic>Double coating</topic><topic>Li-ion batteries</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yu, Zhenlu</creatorcontrib><creatorcontrib>Huang, He</creatorcontrib><creatorcontrib>Liu, Yunjian</creatorcontrib><creatorcontrib>Qu, Xingyu</creatorcontrib><creatorcontrib>Zhou, Yu</creatorcontrib><creatorcontrib>Dou, Aichun</creatorcontrib><creatorcontrib>Su, Mingru</creatorcontrib><creatorcontrib>Wu, Hong-Hui</creatorcontrib><creatorcontrib>Zhang, Liang</creatorcontrib><creatorcontrib>Dai, Kehua</creatorcontrib><creatorcontrib>Guo, Zaiping</creatorcontrib><creatorcontrib>Wan, Tao</creatorcontrib><creatorcontrib>Li, Mengyao</creatorcontrib><creatorcontrib>Chu, Dewei</creatorcontrib><collection>CrossRef</collection><jtitle>Nano energy</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yu, Zhenlu</au><au>Huang, He</au><au>Liu, Yunjian</au><au>Qu, Xingyu</au><au>Zhou, Yu</au><au>Dou, Aichun</au><au>Su, Mingru</au><au>Wu, Hong-Hui</au><au>Zhang, Liang</au><au>Dai, Kehua</au><au>Guo, Zaiping</au><au>Wan, Tao</au><au>Li, Mengyao</au><au>Chu, Dewei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Design and tailoring of carbon-Al2O3 double coated nickel-based cation-disordered cathodes towards high-performance Li-ion batteries</atitle><jtitle>Nano energy</jtitle><date>2022-06-01</date><risdate>2022</risdate><volume>96</volume><spage>107071</spage><pages>107071-</pages><artnum>107071</artnum><issn>2211-2855</issn><abstract>Li-excess cation-disordered oxide cathodes have attracted increasing interests owing to their high energy density originated from cumulative cationic & anionic redox activity. In particular, Ni-based cation-disordered oxides exhibit high theoretical capacity for 2 e− reactions of Ni2+/Ni4+, while the severe overlapping between Ni 3d and O 2p orbitals restricts Ni redox capacity and unstable O redox deteriorates the cycling performance. Benefiting from advanced data mining and high-throughput theoretical calculations technology, we demonstrated that the capacity and cycling performance of Ni-based cation-disordered oxide can be synergically enhanced by carbon/Al2O3 double coating and partial Al3+ substitution. The synergistic mechanism is unveiled via X-ray photoelectron spectroscopy (XPS) and soft X-ray absorption spectroscopy (XAS) characterization together with first-principles calculations. It is confirmed that carbon coating increases the capacity by promoting the formation of peroxo-like species, which boosts O redox activity. Partial intercalating Al3+ enhances the Ni redox reaction by shortening the band overlap between Ni and O. Furthermore, Al2O3 coating and Al3+ doping improved the cycling stability of the cathode material owing to the shielding effect on side reaction and more stable O lattice. This synergistic strategy with nano-coating layer provides a promising pathway to accelerate the discovery of high-energy cation-disordered oxides based cathode materials.
[Display omitted]
•A novel coating strategy to improve cation-disordered cathode performance is proposed.•Cation-disordered cathode with enhanced capacity and cycling performance is achieved.•Carbon/Al2O3 double coating and Al3+ doping improve the redox activities of Ni and O.•O2 release upon cycling is inhibited in the carbon/Al2O3 double-coated sample.</abstract><pub>Elsevier Ltd</pub><doi>10.1016/j.nanoen.2022.107071</doi></addata></record> |
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subjects | Anionic redox Cation-disordered cathode Cycling performance Double coating Li-ion batteries |
title | Design and tailoring of carbon-Al2O3 double coated nickel-based cation-disordered cathodes towards high-performance Li-ion batteries |
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