New solid polymer electrolytes based on polyester diacrylate for lithium power sources
ABSTRACT New solid polymer electrolytes are developed for a lithium power source used at the temperatures up to 100°C. Polyester diacrylate
(PEDA) based on oligohydroxyethylacrylate and its block copolymers with polyethylene glycol were offered for polymer matrix
formation. The salt used was LiClO4. The ionic conductivity of electrolytes was measured in the range of 20 to 100°C using the electrochemical impedance method.
It is shown that the maximum conductivity in the whole temperature range is characteristic of the electrolyte based on the
PEDA copolymer and polyethylene glycol condensation product (2.8 × 10−6 S cm−1 at 20°C, 1.8 × 10−4 S cm−1 at 95°C).