ELECTRIC STORAGE DEVICE ASSEMBLY STRUCTURE AND ELECTRIC STORAGE DEVICE UNIT STRUCTURE

摘要

Provided are an electric storage device unit structure comprising a flexible outer packing member that holds an electric storage element, a positive electrode connection terminal and a negative electrode connection terminal which are connected to the electric storage element and led out to the outside from the outer packing member, and an external connection terminal connected to said terminals, and an electric storage device assembly structure configured by connecting a plurality of electric storage device unit structures. Conventional electric storage device assembly structures have problems including the high contact resistance between electric storage device unit structures, increased electric collection resistance in the assembly structure, and a complicated operation when electric storage device unit structures are connected to each other. In order to solve the above problems, disclosed is a battery pack (1) provided with a plurality of unit batteries (10), and a coupling member (20) for electrically coupling the plurality of unit batteries, wherein an external connection terminal (16) has a coupling plane extending in the direction crossing principal planes of a positive electrode connection terminal and a negative electrode connection terminal and is coupled to the coupling member by the coupling plane.