Functional polymer separator made from agar and lithium ion batteries based on the agar separator

摘要

The present invention relates to a functional polymer separator using agar and a lithium ion battery including the same, agar; And the agar-based functional polymer membrane, characterized in that the agar is modified with a silane compound, stabilizes the hydrofluoric acid precursor to suppress deterioration of the lithium ion battery due to hydrofluoric acid, and maintains high cycle performance even at high temperature and high voltage driving. It works.