Prismatic battery

A prismatic battery comprising a prismatic battery can, a power-generating element inserted into said prismatic battery can, said power-generating element obtained by winding a belt form of positive electrode sheet and a belt form of negative electrode sheet with a separator interleaved therebetween, and an electrode header for sealing said prismatic battery can, said electrode header comprising:

• a metal sheet having through-hole in a portion recessed in an upper surface thereof, through which an electrical connecting terminal passes, an external insulating sheet and an internal insulating sheet provided on upper and lower surfaces of said recessed portion for making insulation between said metal sheet and said electrical connecting terminal, and an electrode-leading sheet mounted on said external insulating sheet,
• said electrical connecting terminal crimped for fixation to said metal sheet with said external insulating sheet and said positive electrode-leading terminal sheet sandwiched therebetween,
• said electrical connecting terminal electrically connected to one electrode sheet of said power-generating element, and
• said electrode header sealed and fixed to said prismatic battery can at a position where said upper surface of said electrode header is flush with an upper end of said prismatic battery can.