Lithium ion secondary battery negative electrode binder composition, and lithium ion secondary battery negative electrode slurry composition using the same, lithium ion secondary battery negative electrode and lithium ion secondary battery

摘要

The present invention achieves both high battery capacity and improved rate characteristics without impairing the binding properties of the negative electrode binder. The present invention relates to a binder composition for a negative electrode of a lithium ion secondary battery comprising a neutralized salt of an α-olefin-maleic acid copolymer obtained by copolymerizing an α-olefin and a maleic acid, and a lithium ion using the same A secondary battery negative electrode and a lithium ion secondary battery are provided.