Laminated cell, junction terminal, pack battery, and method of manufacturing pack battery

摘要

Laminated cell ( 1 ) according to the present invention has a structure wherein a stacked electrode assembly comprising pole plate ( 61 ) of first polarity and pole plate ( 62 ) of second polarity is sealed by lamination sheets ( 7 ). Junction terminal ( 90 ) is of a unitary structure produced by covering connector junction ( 22 ) which provides an electric junction surface between first electrode terminal ( 71 ) and second connector ( 82 ), with covering resin ( 8 ). Junction terminal ( 90 ) is electrically connected to pole plate ( 61 ) of first polarity. Second electrode terminal ( 72 ) is electrically connected to pole plate ( 62 ) of second polarity. In a pack battery made up of unit cells each comprising laminated cell ( 1 ), second connector ( 82 ) of junction terminal ( 90 ) of laminated cell ( 1 ) and second electrode terminal ( 72 ) of another laminated cell ( 1 ) are joined to each other by welding or the like. Second connector ( 82 ) and second electrode terminal ( 72 ) do not need to be sealed as they are of the same material as each other.