NOVELTY - The apparatus (2) has a contact board (5) electrically connected to a positive electrode external terminal (19). An electricity supply board (4) is connected in series between an electrode assembly and the contact board within a positive electrode electricity supply path (21). A deformation board (3) comprises a protrusion (12) that protrudes toward the supply board from a receiving pressure part (22), which receives internal pressure within a case (1). A latching part of the protrusion latches to the separated supply board and maintains a state that is separated from the supply board.    USE - Pressure detection type electric current interruption apparatus for use in an electrical storage apparatus (claimed) e.g. enclosed type secondary battery such as lithium ion battery, nickel-hydrogen battery, nickel cadmium battery and lead acid battery, utilized in a vehicle and electric equipment. Can also be used as enclosed type capacitor.    ADVANTAGE - The latching part of the protrusion latches to the separated supply board and maintains the state that is separated from the supply board such that a center part and a peripheral part of the electricity supply board can be separated by the protrusion and latching of the protrusion can be made reliable, so that the reconnection of the positive electrode electricity supply path can be prevented more reliably and the electric current can be reliably interrupted at abnormal operation time of an electrical storage apparatus, thus avoiding electric current interruption at electricity supply operation time.    DESCRIPTION OF DRAWING(S) - The drawing shows a partial cross-sectional view of a pressure detection type electric current interruption apparatus. '(Drawing includes non-English language text)'    Case (1)    Pressure detection type electric current interruption apparatus (2)    Deformation board (3)    Electricity supply board (4)    Contact board (5)    Protrusion (12)    Positive electrode external terminal (19)    Positive electrode electricity supply path (21)    Receiving pressure part (22)