Electric storage device

Abstract

An electric storage device, includes an electrode assembly that includes a positive electrode and a negative electrode each including a current collector provided with an active material layer on a surface thereof except one end, the positive electrode and the negative electrode being wound or stacked with a separator interposed therebetween, wherein one end of one of the positive electrode and the negative electrode on at least one side of the electrode assembly protrudes, as active material layer-unformed parts, from a side end of the remaining electrode different in polarity; a case for housing the electrode assembly with the protruding direction of the one end oriented sideways; and an electrolytic solution being reserved in the case, wherein the active material layer-unformed parts include electrolytic solution-sucking-up layers that are porous and are formed along a direction orthogonal to the protruding direction of the one end.

Dependencies are inferred from the claim text.