A rechargeable aqueous aluminum–sulfur battery through acid activation in water-in-salt electrolyte
Zhiqiu Hu, Yue Guo, Hongchang Jin, Hengxing Ji, Li‐Jun Wan
Abstract
We demonstrated a rechargeable aqueous Al-S battery based on a water-in-salt electrolyte with the configuration Al‖Al(OTF)3 + LiTFSI + HCl‖S/C. The superconcentrated LiTFSI trapped water molecules to inhibit the hydrolysis of aluminum polysulfides in the cathode, and the HCl additive provided a mild acidic environment to enable repeatable oxidation-reduction reactions in the anode.
Topics & Concepts
ElectrolyteSalt (chemistry)Aqueous solutionBattery (electricity)SulfurInorganic chemistryChemistryAluminiumMaterials scienceElectrodeOrganic chemistryPower (physics)PhysicsPhysical chemistryQuantum mechanicsAdvanced Battery Materials and TechnologiesThermal Expansion and Ionic ConductivityAdvanced battery technologies research