NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY

A non-aqueous electrolyte secondary battery disclosed herein includes a non-aqueous electrolyte and a stacked electrode body including a cell unit, the cell unit including a first electrode, a first separator, a second electrode, and a second separator. The first electrode has a first active material layer. The second electrode has a second active material layer. The first active material layer has a facing region facing the second active material layer at the central part thereof, and has a non-facing region not facing the second active material layer at the outer periphery thereof. The non-facing regions at a pair of opposite ends of the first active material layer each have a through hole. The first separator and the second separator are folded toward the second electrode side outside the non-facing region having a through hole. The first separator and the second separator are joined in a through hole.