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dc.contributor.authorWu, Yingqiang
dc.contributor.authorMing, Hai
dc.contributor.authorLi, Mengliu
dc.contributor.authorZhang, Junli
dc.contributor.authorWahyudi, Wandi
dc.contributor.authorXie, Leqiong
dc.contributor.authorHe, Xiangming
dc.contributor.authorWang, Jing
dc.contributor.authorWu, Yuping
dc.contributor.authorMing, Jun
dc.date.accessioned2019-02-14T08:21:37Z
dc.date.available2019-02-14T08:21:37Z
dc.date.issued2019-02-08
dc.identifier.citationWu Y, Ming H, Li M, Zhang J, Wahyudi W, et al. (2019) New Organic Complex for Lithium Layered Oxide Modification: Ultrathin Coating, High-Voltage, and Safety Performances. ACS Energy Letters: 656–665. Available: http://dx.doi.org/10.1021/acsenergylett.9b00032.
dc.identifier.issn2380-8195
dc.identifier.issn2380-8195
dc.identifier.doi10.1021/acsenergylett.9b00032
dc.identifier.urihttp://hdl.handle.net/10754/631052
dc.description.abstractSurface modification of cathode (e.g., lithium layered oxide, NCM) has become ever more important in lithium-ion batteries, particularly for pursuing higher energy densities and safety at high voltage. This is because structural degradation of cathode can be mitigated significantly. Herein, an organic complex is introduced for metal phosphates (e.g., AlPO4) modification through a new film-forming process in non-aqueous solution. This general strategy overcomes the challenge of non-uniform coating in current precipitation method, then opens a new avenue towards ultra-thin surface modification on molecular scale. As one of examples, as-prepared AlPO4-coated NCM exhibits much improved structural and electrochemical stability; meanwhile, thermal runaway can be suppressed significantly in over-charged cell using the modified NCM, demonstrating higher and reliable safety features. The great improvements benefit from the uniform and ultrathin AlPO4 coating, which inhibits the collapse and conversion of layered structure to spinel especially to rock salt structure at high-voltage conditions, as confirmed by HRTEM and EELS.
dc.description.sponsorshipThe research was supported by the funding of National Materials Genome Project (2016YFB0700600), National Natural Science Foundation Committee of China (Distinguished Youth Scientists Project of 51425301, U1601214, 51573013, 51773092 and 51772147). This work is supported by the National Natural Science Foundation of China (21521092, 21703285 and 11604130) and the Independent Research Project of the State Key Laboratory of Rare Earth Resources Utilization (110005R086), Changchun Institute of Applied Chemistry, Chinese Academy of Sciences. The authors also thank the great support from the King Abdullah University of Science and Technology (KAUST).
dc.publisherAmerican Chemical Society (ACS)
dc.relation.urlhttps://pubs.acs.org/doi/10.1021/acsenergylett.9b00032
dc.rightsThis document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Energy Letters, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://pubs.acs.org/doi/10.1021/acsenergylett.9b00032.
dc.titleNew Organic Complex for Lithium Layered Oxide Modification: Ultra-thin Coating, High-Voltage and Safety Performances
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalACS Energy Letters
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
dc.contributor.institutionState Key Laboratory of Materials-oriented Chemical Engineering & School of Energy Science and Engineering, Nanjing Tech University Nanjing, 211816, P. R. China.
dc.contributor.institutionResearch Institute of Chemical Defense, Beijing 100191, P. R. China.
dc.contributor.institutionKey Laboratory of Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000, P. R. China.
dc.contributor.institutionInstitute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, P. R. China.
kaust.personLi, Mengliu
kaust.personWahyudi, Wandi
kaust.personMing, Jun
refterms.dateFOA2019-02-14T08:55:57Z
dc.date.published-online2019-02-08
dc.date.published-print2019-03-08


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