Performance Characteristics of Gel Polymer Electrolyte Separators in Rechargeable Lithium Ion Cells

摘要

The swelling behavior of poly, notes as P, was under various conditions. Increasing the HFP unit content in P(VdF-HFP) and temperature increased th swelling degree of the polymers considerably. The amount of the electrolyte solution absorbed by P at room temperature showed the following trend: DMC>EC/DMC>DECapprox=EC/DEC. The presence of LiPF_6 in carbonate solvents did not afect on the swelling degree of PVdF and P(VdF-8