A bipolar secondary battery comprising: an electric power generating unit including a plurality of bipolar electrodes stacked on one another in a stacking direction with an electrolyte layer disposed between the bipolar electrodes and separating the bipolar electrodes, each of the bipolar electrodes including a collector, a positive electrode active material layer formed on a first side surface of the collector, and a negative electrode active material layer formed on a second side surface of the collector; and a pair of terminal plates with a first terminal plate connected to a first stacking direction facing end of the electric power generating unit and a second terminal plate connected to a second stacking direction facing end of the electric power generating unit, at least one of the first and second terminal plates including an electric current suppressing device that suppresses an electric current flowing in the planar direction of the at least one of the terminal plates occurring when an internal short circuit occurs in the electric power generating unit, wherein the current suppressing device is selectively formed with one of a current interrupting device that interrupt an electric current and a current limiting device that suppress an electric current by partitioning the at least one terminal plate in a planar direction of the at least one terminal plate in which the planar direction of the at least one terminal plate is perpendicularly oriented with respect to the stacking direction of the electric power generating unit, wherein the current suppressing device is formed at a portion of the electrode terminal plate where the electrode terminal plate and the collector overlap, as viewed along the stacking direction. an electric power generating unit including a plurality of bipolar electrodes stacked on one another in a stacking direction with an electrolyte layer disposed between the bipolar electrodes and separating the bipolar electrodes, each of the bipolar electrodes including a collector, a positive electrode active material layer formed on a first side surface of the collector, and a negative electrode active material layer formed on a second side surface of the collector; and a pair of terminal plates with a first terminal plate connected to a first stacking direction facing end of the electric power generating unit and a second terminal plate connected to a second stacking direction facing end of the electric power generating unit, at least one of the first and second terminal plates including an electric current suppressing device that suppresses an electric current flowing in the planar direction of the at least one of the terminal plates occurring when an internal short circuit occurs in the electric power generating unit, wherein the current suppressing device is selectively formed with one of a current interrupting device that interrupt an electric current and a current limiting device that suppress an electric current by partitioning the at least one terminal plate in a planar direction of the at least one terminal plate in which the planar direction of the at least one terminal plate is perpendicularly oriented with respect to the stacking direction of the electric power generating unit, wherein the current suppressing device is formed at a portion of the electrode terminal plate where the electrode terminal plate and the collector overlap, as viewed along the stacking direction.