Patent ID: 8658298

Claim:
A laminate-packaged electric storage device comprising: an outer package, an electric storage device element, and an electrolyte solution, the outer package being formed by stacking and seal-tight bonding outer package films along a bonding section that is formed in an outer edge area of each of the outer package films, the electric storage device element and the electrolyte solution being held in a receiving section that is formed inside the outer package, and a positive electrode power supply tab and a negative electrode power supply tab being electrically connected to the electric storage device element and outwardly protruding, a non-bonding section that is surrounded by the bonding section and communicates with the receiving section being formed in the outer edge area of each of the outer package films, an opening that is formed through at least one of the outer package films, and a seal section that is formed to surround the opening being formed in an area of the non-bonding section, the outer package films being bonded in the seal section, the opening being formed in the area of the non-bonding section at a position other than a center position, and the receiving section having in a planar view: a first side intersecting the positive electrode power supply tab; a second side intersecting the negative electrode power supply tab; and a third side that is connected to the first and second sides at both ends, part of the third side being one side of the non-bonding section and communicating with the receiving section.