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dc.contributor.authorYu, Yue
dc.contributor.authorHuang, Gang
dc.contributor.authorWang, Jia-Zhi
dc.contributor.authorLi, Kai
dc.contributor.authorMa, Jin-Ling
dc.contributor.authorZhang, Xin Bo
dc.date.accessioned2020-08-16T09:24:16Z
dc.date.available2020-08-16T09:24:16Z
dc.date.issued2020-08-09
dc.date.submitted2020-06-18
dc.identifier.citationYu, Y., Huang, G., Wang, J., Li, K., Ma, J., & Zhang, X. (2020). In Situ Designing a Gradient Li + Capture and Quasi-Spontaneous Diffusion Anode Protection Layer toward Long-Life Li−O 2 Batteries. Advanced Materials, 2004157. doi:10.1002/adma.202004157
dc.identifier.issn0935-9648
dc.identifier.pmid32776397
dc.identifier.doi10.1002/adma.202004157
dc.identifier.urihttp://hdl.handle.net/10754/664601
dc.description.abstractLithium metal is the only anode material that can enable the Li-O2 battery to realize its high theoretical energy density (≈3500 Wh kg-1 ). However, the inherent uncontrolled dendrite growth and serious corrosion limitations of lithium metal anodes make it experience fast degradation and impede the practical application of Li-O2 batteries. Herein, a multifunctional complementary LiF/F-doped carbon gradient protection layer on a lithium metal anode by one-step in situ reaction of molten Li with poly(tetrafluoroethylene) (PTFE) is developed. The abundant strong polar C-F bonds in the upper carbon can not only act as Li+ capture site to pre-uniform Li+ flux but also regulate the electron configuration of LiF to make Li+ quasi-spontaneously diffuse from carbon to LiF surface, avoiding the strong Li+ -adhesion-induced Li aggregation. For LiF, it can behave as fast Li+ conductor and homogenize the nucleation sites on lithium, as well as ensure firm connection with lithium. As a result, this well-designed protection layer endows the Li metal anode with dendrite-free plating/stripping and anticorrosion behavior both in ether-based and carbonate ester-based electrolytes. Even applied protected Li anodes in Li-O2 batteries, its superiority can still be maintained, making the cell achieve stable cycling performance (180 cycles).
dc.description.sponsorshipY.Y., G.H., and J.-Z.W. contributed equally to this work. This work was financially supported by the National Key R&D Program of China (2016YFB0100103), the National Natural Science Foundation of China (21725103), the Strategic Priority Research Program of the Chinese Academy of Sciences (XDA21010210), the Jilin Province Science and Technology Development Plan Funding Project (20180101203JC, 20200201079JC), and the Changchun Science and Technology Development Plan Funding Project (19SS010). We also appreciated the kind help from National & local united engineering lab for power battery in Northeast Normal University.
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/adma.202004157
dc.rightsArchived with thanks to Advanced materials (Deerfield Beach, Fla.)
dc.titleIn Situ Designing a Gradient Li+ Capture and Quasi-Spontaneous Diffusion Anode Protection Layer toward Long-Life Li-O2 Batteries.
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalAdvanced materials (Deerfield Beach, Fla.)
dc.rights.embargodate2021-08-11
dc.eprint.versionPost-print
dc.contributor.institutionState Key Laboratory of Rare Earth Resource UtilizationChangchun Institute of Applied ChemistryChinese Academy of Sciences Changchun 130022 P. R. China
dc.contributor.institutionUniversity of Science and Technology of China Hefei 230026 P. R. China
dc.contributor.institutionSchool of Electrical EngineeringChongqing University 174 Shazheng Street, Shapingba District Chongqing 400044 P. R. China
dc.identifier.pages2004157
kaust.personHuang, Gang
dc.date.accepted2020-06-26
dc.identifier.eid2-s2.0-85089150085
refterms.dateFOA2020-08-16T12:59:10Z
dc.date.published-online2020-08-09
dc.date.published-print2020-09


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