title: Environmentally-friendly aqueous Li (or Na)-ion battery with fast electrode kinetics and super-long life.
abstract: Current rechargeable batteries generally display limited cycle life and slow electrode kinetics and contain environmentally unfriendly components. Furthermore, their operation depends on the redox reactions of metal elements. We present an original battery system that depends on the redox of I(-)/I3 (-) couple in liquid cathode and the reversible enolization in polyimide anode, accompanied by Li(+) (or Na(+)) diffusion between cathode and anode through a Li(+)/Na(+) exchange polymer membrane. There are no metal element-based redox reactions in this battery, and Li(+) (or Na(+)) is only used for charge transfer. Moreover, the components (electrolyte/electrode) of this system are environment-friendly. Both electrodes are demonstrated to have very fast kinetics, which gives the battery a supercapacitor-like high power. It can even be cycled 50,000 times when operated within the electrochemical window of 0 to 1.6 V. Such a system might shed light on the design of high-safety and low-cost batteries for grid-scale energy storage.
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Xiaoli
authors: X
authors: Dong
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Long
authors: L
authors: Chen
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Jingyuan
authors: J
authors: Liu
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Servane
authors: S
authors: Haller
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Yonggang
authors: 0000-0002-2447-4679
authors: Y
authors: Wang
authors: Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New Energy, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), Fudan University, Shanghai 200433, China.
authors: Yongyao
authors: Y
authors: Xia
mesh_terms: D011211:Electric Power Supplies; D004563:Electrochemistry / Q000379:methods; D004566:Electrodes; D004573:Electrolytes / Q000737:chemistry; D007477:Ions / Q000737:chemistry*; D007700:Kinetics; D008094:Lithium / Q000737:chemistry*; D012964:Sodium / Q000737:chemistry*; D014867:Water / Q000737:chemistry*
chemical_list: D004573:Electrolytes; D007477:Ions; D014867:Water; D008094:Lithium; D012964:Sodium
keywords: Electrochemical energy storage; aqueous Li-ion battery; aqueous Na-ion battery; electrodes kinetics; large-scale energy storage