title: High-energy density nonaqueous all redox flow lithium battery enabled with a polymeric membrane.
abstract: Redox flow batteries (RFBs) are considered one of the most promising large-scale energy storage technologies. However, conventional RFBs suffer from low energy density due to the low solubility of the active materials in electrolyte. On the basis of the redox targeting reactions of battery materials, the redox flow lithium battery (RFLB) demonstrated in this report presents a disruptive approach to drastically enhancing the energy density of flow batteries. With LiFePO4 and TiO2 as the cathodic and anodic Li storage materials, respectively, the tank energy density of RFLB could reach ~500 watt-hours per liter (50% porosity), which is 10 times higher than that of a vanadium redox flow battery. The cell exhibits good electrochemical performance under a prolonged cycling test. Our prototype RFLB full cell paves the way toward the development of a new generation of flow batteries for large-scale energy storage.
authors.affiliation: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Chuankun
authors.initials: C
authors.lastname: Jia
authors.affiliation: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Feng
authors.initials: F
authors.lastname: Pan
authors.affiliation: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Yun Guang
authors.initials: YG
authors.lastname: Zhu
authors.affiliation: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Qizhao
authors.identifier: 0000-0002-3709-865X
authors.initials: Q
authors.lastname: Huang
authors.affiliation: Department of Mechanical Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Li
authors.initials: L
authors.lastname: Lu
authors.affiliation: Department of Materials Science and Engineering, Faculty of Engineering, National University of Singapore, Singapore 117576, Singapore.
authors.forename: Qing
authors.initials: Q
authors.lastname: Wang
keywords: lithium battery; membrane; non-aqueous flow battery; redox flow lithium battery; vanadium redox flow battery