ChemElectroChem · 2019 · 26 citations · 32 references
Natural SciencesMaterials EngineeringMaterials ScienceElectrochemistryMaterials ChemistryPhysical ChemistryElectrical ConductivityElectrolyte MaterialsIonic ConductivityIonic ConductorsSolid ElectrolytesSolid-state ElectrolytesCalcinationConductivityConductivity Of Electrolyte SolutionsLithium-ion ConductivityLithium-ion ConductorsSolid Electrolyte CharacterizationSolid-state Ionic ConductivitySolvent Effects
Abstract Hydrothermal synthesis is used to successfully prepare Li 1.3 Al 0.3 Ti 1.7 (PO 4 ) 3 (LATP) solid electrolytes with high lithium‐ion conductivity, typically being 0.213 mS cm −1 . The best calcination and sintering temperatures are optimized to be 900 and 1075 °C, respectively. The solvent effects on conductivity and microstructure of LATP in water, ethanol and acetone are investigated by using impedance spectroscopy and scanning electron microscopy. The conductivity of LATP in water reaches 1.167 mS cm −1 . In ethanol, the conductivity of LATP is 0.464 mS cm −1 . There is no significant change in acetone. The structural stability of LATP after immersing in liquid solutions is verified by X‐ray diffraction and Raman spectroscopy. It is found by infrared spectroscopy that the change in conductivity is related to the adsorbed OH bond, and the reason for the increase in conductivity is discussed.
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Recent advances in all-solid-state rechargeable lithium batteries
Chunwen Sun, Jin Liu, Yudong Gong et al. · Nano Energy · 2017 · 1.7K citations
Natural Sciences, Materials Engineering, Materials Science +14