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Enhanced Li-ion intercalation kinetics and lattice oxygen stability in single-crystalline Ni-rich Co-poor layered cathodes

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dc.title Enhanced Li-ion intercalation kinetics and lattice oxygen stability in single-crystalline Ni-rich Co-poor layered cathodes en
dc.contributor.author Zhang, Hujun
dc.contributor.author Qin, Li
dc.contributor.author Sedlačík, Michal
dc.contributor.author Sáha, Petr
dc.contributor.author Cheng, Qilin
dc.contributor.author Yu, Haifeng
dc.contributor.author Jiang, Hao
dc.relation.ispartof Journal of Materials Chemistry A
dc.identifier.issn 2050-7488 Scopus Sources, Sherpa/RoMEO, JCR
dc.identifier.issn 2050-7496 Scopus Sources, Sherpa/RoMEO, JCR
dc.date.issued 2024
utb.relation.volume 2024
utb.relation.issue 12
dc.citation.spage 3682
dc.citation.epage 3688
dc.type article
dc.language.iso en
dc.publisher Royal Society of Chemistry
dc.identifier.doi 10.1039/d3ta07156a
dc.relation.uri https://pubs.rsc.org/en/content/articlelanding/2024/ta/d3ta07156a
dc.relation.uri https://doi.org/10.1039/D3TA07156A
dc.relation.uri https://pubs.rsc.org/en/content/articlepdf/2024/ta/d3ta07156a
dc.description.abstract Single-crystalline nickel-rich cobalt-poor layered oxides are promising cathode materials for lithium-ion batteries due to their high safety and competitive cost. However, the severe cation disorder and lithium/oxygen (Li/O) loss during the high-temperature calcination process result in slow Li-ion diffusion and inferior O stability. Herein, a LiNi0.85Co0.05Mn0.10O2 (NCM85) single-crystalline cathode was prepared at relatively lower lithiation temperatures by barium/aluminum (Ba/Al) co-doping. The increase in the c-axis caused by Ba doping with a larger ion radius and the reduction in Li/Ni disorder can enhance the Li-ion diffusion kinetics, while the strong Ba-O and Al-O bonds considerably boost the lattice O stability to alleviate O escape during the charging process. The optimized cathode exhibits a high reversible capacity of 206.5 mA h g−1 at 0.1C and 115.6 mA h g−1 at 5C. Impressively, 87.5% of initial capacity is still maintained after 500 cycles at 1C in a pouch-type full cell. This finding provides a viable and flexible method to resolve the kinetics and stability issues of other layered oxide cathodes. en
utb.faculty University Institute
dc.identifier.uri http://hdl.handle.net/10563/1011866
utb.identifier.scopus 2-s2.0-85182897717
utb.identifier.wok 001142164300001
utb.identifier.coden JMCAE
utb.source J-wok
dc.date.accessioned 2024-02-14T13:51:54Z
dc.date.available 2024-02-14T13:51:54Z
dc.description.sponsorship National Natural Science Foundation of China [U22A20429, 22308103]; National Natural Science Foundation of China [2023M731083]; China Postdoctoral Science Foundation; Fundamental Research Funds for the Central Universities
dc.description.sponsorship National Natural Science Foundation of China, NSFC, (22308103, U22A20429); China Postdoctoral Science Foundation, (2023M731083); Fundamental Research Funds for the Central Universities
utb.ou Centre of Polymer Systems
utb.contributor.internalauthor Sedlačík, Michal
utb.contributor.internalauthor Sáha, Petr
utb.fulltext.sponsorship This work was supported by the National Natural Science Foundation of China (U22A20429 and 22308103), China Postdoctoral Science Foundation (2023M731083) and the Fundamental Research Funds for the Central Universities.
utb.wos.affiliation [Zhang, Hujun; Qin, Li; Cheng, Qilin; Yu, Haifeng; Jiang, Hao] East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Shanghai 200237, Peoples R China; [Yu, Haifeng; Jiang, Hao] East China Univ Sci & Technol, Sch Chem Engn, Key Lab Ultrafine Mat, Minist Educ, Shanghai 200237, Peoples R China; [Sedlacik, Michal; Saha, Petr] Tomas Bata Univ Zlin, Univ Inst, Ctr Polymer Syst, Trida T Bati 5678, Zlin 76001, Czech Republic
utb.scopus.affiliation Shanghai Engineering Research Center of Hierarchical Nanomaterials, School of Materials Science and Engineering, East China University of Science and Technology, Shanghai, 200237, China; Key Laboratory for Ultrafine Materials of Ministry of Education, School of Chemical Engineering, East China University of Science and Technology, Shanghai, 200237, China; Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida T. Bati 5678, Zlín, 760 01, Czech Republic
utb.fulltext.projects U22A20429
utb.fulltext.projects 22308103
utb.fulltext.projects 2023M731083
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