Lithium polymer electrolytes based on sulfonated poly(ether ether ketone) for lithium polymer batteries KU Leuven
© 2015 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. We studied a lithium-ion conducting polymer based on sulfonated poly(ether ether ketone) (SPEEK) doped with lithium bis(trifluoromethane)sulfonimide (LiTFSI). Self-standing membranes were prepared by the solvent-casting technique with a LiTFSI loading of 0 to 30 wt.-%. The thermogravimetric analysis curves showed that the SO 3 H groups decompose earlier in the SPEEK-LiTFSI membranes than in ...