ELECTRODE FOR ELECTRICITY STORAGE DEVICE, SLURRY FOR ELECTRODE, BINDER COMPOSITION FOR ELECTRODE, AND ELECTRICITY STORAGE DEVICE

An electrical storage device electrode includes a collector, and an active material layer that is formed on a surface of the collector, the active material layer including at least a polymer and an active material, and the active material layer having a polymer distribution coefficient of 0.6 to 1.0 and a density of 1.3 to 1.8 g/cm 3 .