title: Improved Reversibility of Fe3+/Fe4+Redox Couple in Sodium Super Ion Conductor Type Na3Fe2(PO4)3for Sodium-Ion Batteries.
abstract: The methodology employed here utilizes the sodium super ion conductor type sodium iron phosphate wrapped with conducting carbon network to generate a stable Fe3+/Fe4+redox   couple, thereby exhibiting higher operating voltage and energy density of sodium-ion batteries. This new class of sodium iron phosphate wrapped by carbon also displays a cycling stability with >96% capacity retention after 200 cycles.
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.|Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia.
authors.forename: Ranjusha
authors.initials: R
authors.lastname: Rajagopalan
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Bo
authors.initials: B
authors.lastname: Chen
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Zhicheng
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.|National and Local United Engineering Lab for Power Battery, Department of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, P. R. China.
authors.forename: Xing-Long
authors.initials: XL
authors.lastname: Wu
authors.affiliation: Institute of Chemical and Engineering Sciences, A*STAR, 1 Pesek Road, Jurong Island, Singapore, 627833, Singapore.
authors.forename: Yonghua
authors.initials: Y
authors.lastname: Du
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Ying
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore.
authors.forename: Bing
authors.initials: B
authors.lastname: Li
authors.affiliation: Institute of Materials Research and Engineering (IMRE), A*STAR (Agency for Science, Technology and Research), 2 Fusionopolis Way, Innovis #08-03, Singapore, 138634, Singapore.
authors.forename: Yun
authors.initials: Y
authors.lastname: Zong
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Jie
authors.initials: J
authors.lastname: Wang
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Gwang-Hyeon
authors.initials: GH
authors.lastname: Nam
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Melinda
authors.initials: M
authors.lastname: Sindoro
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia.
authors.forename: Shi Xue
authors.initials: SX
authors.lastname: Dou
authors.affiliation: Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW, 2522, Australia.
authors.forename: Hua Kun
authors.initials: HK
authors.lastname: Liu
authors.affiliation: Center for Programmable Materials, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore.
authors.forename: Hua
authors.initials: H
authors.lastname: Zhang
keywords: Fe3+/Fe4+ redox couple; cycling; sodium iron phosphate; sodium-ion batteries; specific capacity