| abstract |
The invention relates to the field of lithium ion batteries, in particular to a polymer electrolyte membrane, a preparation method thereof, and a lithium ion battery. The polymer electrolyte membrane contains a polymer matrix, a lithium salt and polymer fibers dispersed in the polymer matrix, the polymer matrix contains a cross-linked structure provided by a cross-linking agent, a cross-linkable copolymer provided by a cross-linkable copolymer. Copolymer chain structures and inorganic nanoparticles. The polymer electrolyte membrane provided by the invention has higher ionic conductivity, lower crystallinity, suitable flexibility, and the preparation method thereof has simple procedures and lower cost. |