SEPARATOR-INTEGRATED ELECTRODE PLATE ELECTRODE PLATE PAIR STACKED ELECTRIC POWER STORAGE ELEMENT AND METHOD OF MANUFACTURING SEPARATOR-INTEGRATED ELECTRODE PLATE

摘要

The separator integrated electrode plate 30 includes a current collector plate 32, an active material layer 33 formed on the current collector plate 32, and a resin separator layer 34 formed on the active material layer 33. The strip-shaped laser cut end 30sp along the laser cut end edge 30es which is laser cut in the thickness direction of the electrode plate and forms part of the peripheral end edge 30e of the separator-integrated electrode plate is formed of the resin separator layer 34. Over the width Wa greater than twice the thickness Ts, the resin forming the resin separator layer 34 has the resin penetrating portion 33j infiltrated into the active material layer 33.