Preparation and Characterization of Al2O3/PVDF-HFP Based Polymer Electrolyte

Abstract:

Al₂O₃/PVDF-HFP based polymer electrolyte was prepared by the phase transfer method with different mass ratios of organic solvent and non-organic solvent. The solid polymer electrolyte was characterized by means of SEM, FTIR and AC impedance methods. The results show that the optimum mass ratio of organic solvent to non-organic solvent is 1:0.3 and the optimum mass ratio of Al₂O₃ is 7%. The liquid absorption rate of the polymer electrolyte is 225%. The lithium ionic conductivity of the polymer electrolyte at room temperature is about 1.75×10⁻³ S·cm^-1, and the LiCoO₂/Al₂O₃/PVDF-HFP/Li cell has good cycle performance.

• Periodical: Advanced Materials Research (Volume 950)
• Pages: 33-37
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.950.33
• Online since: June 2014
• Authors: Hong Shi*, Qing Zhu
• Keywords: Al₂O₃, Conductivity, Lithium Batteries, Polymer Electrolyte, PVDF-HFP

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