title: 3D Interconnected Carbon Fiber Network-Enabled Ultralong Life Na3V2(PO4)3@Carbon Paper Cathode for Sodium-Ion Batteries.
abstract: Sodium-ion batteries (NIBs) are an emerging technology, which can meet increasing demands for large-scale energy storage. One of the most promising cathode material candidates for sodium-ion batteries is Na3V2(PO4)3due to its high capacity, thermal stability, and sodium (Na) Superionic Conductor 3D (NASICON)-type framework. In this work, the authors have significantly improved electrochemical performance and cycling stability of Na3V2(PO4)3by introducing a 3D interconnected conductive network in the form of carbon fiber derived from ordinary paper towel. The free-standing Na3V2(PO4)3-carbon paper (Na3V2(PO4)3@CP) hybrid electrodes do not require a metallic current collector, polymeric binder, or conducting additives to function as a cathode material in an NIB system. The Na3V2(PO4)3@CP cathode demonstrates extraordinary long term cycling stability for 30 000 deep charge-discharge cycles at a current density of 2.5 mA cm-2. Such outstanding cycling stability can meet the stringent requirements for renewable energy storage.
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.
authors.forename: Katja
authors.initials: K
authors.lastname: Kretschmer
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.
authors.forename: Bing
authors.initials: B
authors.lastname: Sun
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.
authors.forename: Jinqiang
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.
authors.forename: Xiuqiang
authors.initials: X
authors.lastname: Xie
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.affiliation: Centre for Clean Energy Technology, School of Mathematical and Physical Sciences, University of Technology Sydney, Sydney, NSW, 2007, Australia.|School of Materials Science and Engineering, Dongguan University of Technology, Dongguan, Guangdong Province 523106, P.R. China.
authors.forename: Guoxiu
authors.initials: G
authors.lastname: Wang
keywords: 3D carbon fiber networks; free-standing electrodes; nanosize Na3V2(PO4)3; sodium-ion batteries