| abstract |
The present invention aims to provide a binder for an electrode of a power storage device which is excellent in dispersibility of an active material and adhesion, capable of improving the electrode density of an electrode to be obtained, provided with high resistance against an electrolyte, and capable of producing a high-capacity lithium secondary battery even when the amount thereof is small. The present invention also aims to provide a composition for an electrode of a power storage device, an electrode of a power storage device, and a power storage device each produced using the binder for an electrode of a power storage device. The present invention relates to a binder for an electrode of a power storage device, including a polyvinyl acetal-based resin dispersion containing particles of a polyvinyl acetal-based resin dispersed in an aqueous medium, the polyvinyl acetal-based resin having a hydroxy group content of 30 to 60 mol %. |