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dc.contributor.authorChen, Zi-Fangen_US
dc.contributor.authorLin, Xiaodongen_US
dc.contributor.authorXia, Huien_US
dc.contributor.authorHong, Yuhaoen_US
dc.contributor.authorLiu, Xiaoyuen_US
dc.contributor.authorCai, Senrongen_US
dc.contributor.authorDuan, Jia-Ningen_US
dc.contributor.authorYang, Junjieen_US
dc.contributor.authorZhou, Zhiyouen_US
dc.contributor.authorChang, Jeng-Kueien_US
dc.contributor.authorZheng, Mingsenen_US
dc.contributor.authorDong, Quanfengen_US
dc.date.accessioned2019-08-02T02:15:30Z-
dc.date.available2019-08-02T02:15:30Z-
dc.date.issued2019-06-21en_US
dc.identifier.issn2050-7488en_US
dc.identifier.urihttp://dx.doi.org/10.1039/c9ta03133ben_US
dc.identifier.urihttp://hdl.handle.net/11536/152196-
dc.description.abstractRedox mediators (RMs) are widely applied in lithium-oxygen (Li-O-2) batteries since they offer an alternative way to avoid the direct electrochemical oxidization of Li2O2 during charging, and thus greatly reduce the charge overpotential. Unfortunately, the defenseless Li-metal anode is severely corroded by the oxidized RMs shuttled from the cathode side, resulting in the low utilization of RMs and poor cycling stability. Herein, a functionalized double-guaranteed NPG membrane with electrostatic repulsion and steric hindrance characteristics is proposed to suppress the shuttle effect of LiI RM. Benefiting from the interaction between the O atoms in PEO and the sulfonic acid groups in Nafion and the two-dimensional skeleton structure of graphene, Nafion, PEO and graphene can couple with each other, forming a large network barrier with multi-functional properties. As expected, the LiI-based Li-O-2 batteries with the NPG membrane exhibited a smooth, iodine-free Li anode surface after many cycles and delivered an ultrahigh discharge capacity of similar to 26 917 mA h g(-1) at a current density of 200 mA g(-1) and ultralong cycle life (472 cycles) at 500 mA g(-1) with a cutoff capacity of 500 mA h g(-1), which are far better than that of the bare batteries.en_US
dc.language.isoen_USen_US
dc.titleA functionalized membrane for lithium-oxygen batteries to suppress the shuttle effect of redox mediatorsen_US
dc.typeArticleen_US
dc.identifier.doi10.1039/c9ta03133ben_US
dc.identifier.journalJOURNAL OF MATERIALS CHEMISTRY Aen_US
dc.citation.volume7en_US
dc.citation.issue23en_US
dc.citation.spage14260en_US
dc.citation.epage14270en_US
dc.contributor.department材料科學與工程學系zh_TW
dc.contributor.departmentDepartment of Materials Science and Engineeringen_US
dc.identifier.wosnumberWOS:000472566400042en_US
dc.citation.woscount0en_US
Appears in Collections:Articles