Binder for solid electrolyte-based all solid-state lithium secondary battery, cathode in all solid-state lithium secondary battery comprising the same, separator in all solid-state lithium secondary battery comprising the same, solid electrolyte-based all solid-state lithium secondary battery comprising the same

Abstract

The present disclosure relates to a binder for an all-solid-state lithium secondary battery wherein the carboxyl group of mercaptocarboxylic acid is grafted in a butadiene polymer, wherein a molar ratio of the carboxyl group to the butadiene polymer is 0.1-30:100, a binder for an all-solid-state lithium secondary battery containing the same, an all-solid-state lithium secondary battery electrode composite containing the same, a separator in an all-solid-state lithium secondary battery containing the same, and an all-solid-state lithium secondary battery containing the same. Since the binder for an all-solid-state lithium secondary battery of the present disclosure can satisfy stability, solubility, polarity and adhesive property at the same time, it can significantly accelerate the commercialization of an all-solid-state battery based on a wet process.

Dependencies are inferred from the claim text.