| abstract |
A high-performance secondary battery electrode binder that has excellent binding properties and can further contribute to an improvement in battery output, and a secondary battery electrode and a non-aqueous electrolyte secondary battery using the binder. To provide. A binder for a secondary battery electrode contains a water-soluble polymer neutralized salt of a copolymer of methyl vinyl ether and maleic anhydride as a main component. The water-soluble polymer neutralized salt preferably has a lithium ion content of 50 mol% or more and a sodium ion content of 3 mol% or more of the constituent metal ions. [Selection figure] None |