title: Hybrid system for rechargeable magnesium battery with high energy density.
abstract: One of the main challenges of electrical energy storage (EES) is the development of environmentally friendly battery systems with high safety and high energy density. Rechargeable Mg batteries have been long considered as one highly promising system due to the use of low cost and dendrite-free magnesium metal. The bottleneck for traditional Mg batteries is to achieve high energy density since their output voltage is below 2.0 V. Here, we report a magnesium battery using Mg in Grignard reagent-based electrolyte as the negative electrode, a lithium intercalation compound in aqueous solution as the positive electrode, and a solid electrolyte as a separator. Its average discharge voltage is 2.1 V with stable discharge platform and good cycling life. The calculated energy density based on the two electrodes is high. These findings open another door to rechargeable magnesium batteries.
authors.affiliation: 1] New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China [2] College of Energy, Nanjing Tech University, Nanjing 211816, Jiangsu Province, China.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Chang
authors.affiliation: New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China.
authors.forename: Yaqiong
authors.initials: Y
authors.lastname: Yang
authors.affiliation: New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China.
authors.forename: Xiaowei
authors.initials: X
authors.lastname: Wang
authors.affiliation: New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China.
authors.forename: Minxia
authors.initials: M
authors.lastname: Li
authors.affiliation: New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China.
authors.forename: Zhengwen
authors.initials: Z
authors.lastname: Fu
authors.affiliation: 1] New Energy and Materials Laboratory (NEML), Department of Chemistry &Shanghai Key Laboratory of Molecular Catalysis and Innovative Material, Fudan University, Shanghai 200433, China [2] College of Energy, Nanjing Tech University, Nanjing 211816, Jiangsu Province, China.
authors.forename: Yuping
authors.initials: Y
authors.lastname: Wu
authors.affiliation: Technische Universität Chemnitz, Institut für Chemie, AG Elektrochemie, Chemnitz D-09107, Germany.
authors.forename: Rudolf
authors.initials: R
authors.lastname: Holze