Binder composition for lithium ion secondary battery, adhesive for lithium ion secondary battery, slurry for lithium ion secondary battery layer, lithium ion secondary battery layer, separator for lithium ion secondary battery, lithium ion secondary battery

摘要

Problem to be solved: to provide a layer capable of suppressing separator shrinkage at high temperature.Component: carboxylic acid containing monomer.The monomer content containing the carboxylic acid group is 0.5 mass% or more and 20% by mass or less relative to 100% by mass of the particulate copolymerA granular copolymer having a glass transition temperature of - 40 to 10(b) components: polyvalent metal complexes that cause metal bridging with carboxylic acid groupsIncludingThe content of the component (b) is less than or equal to 0.2 mole or more than 10 mol equivalent to the carboxylic group containing monomer in the component (a)Binder composition for lithium ion secondary battery.No selection