Enhanced reversibility and electrochemical window of Zn-ion batteries with an acetonitrile/water-in-salt electrolyte
Xue-Yang Song, Huibing He, Mohammad Hossein Aboonasr Shiraz, Hongzheng Zhu, Ali Khosrozadeh, Jian Liu
Abstract
An acetonitrile/water-in-salt (AWIS) hybrid electrolyte was developed for Zn-ion batteries. Compared to conventional aqueous electrolytes, the AWIS hybrid electrolyte prolonged the lifespan of Zn|Zn cells from 150 to 2500 h and increased the upper cut-off voltage from 1.8 to 2.2 V for Zn-MnO2 batteries. This new AWIS hybrid electrolyte is expected to enhance the energy and power density of Zn-based batteries for large-scale grid storage.
Topics & Concepts
ElectrolyteAcetonitrileAnodeSalt (chemistry)Electrochemical windowElectrochemistryInorganic chemistryDendrite (mathematics)ChemistryWindow (computing)ZincMaterials scienceChemical engineeringElectrodeChromatographyOrganic chemistryPhysical chemistryIonic conductivityOperating systemEngineeringGeometryComputer scienceMathematicsAdvanced battery technologies researchAdvanced Battery Materials and TechnologiesAdvanced Battery Technologies Research