Semi-Interpenetrating Polymer Networks Polymer Electrolyte and All-Solid-State Battery comprising The Same

摘要

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a polymer electrolyte applied to an all-solid-state battery using lithium as a negative electrode, and more particularly, includes a polyethylene oxide (PEO) -based polymer and a lithium salt, and is crosslinked by a crosslinkable monomer. To a semi-penetrating polymer network (semi-IPN) structure. When the high-strength polymer electrolyte of the present invention is applied to an all-solid-state battery, the ionic conductivity can be maintained while maintaining the current level, and the micro-short phenomenon caused by lithium dendrite growth can be alleviated.