Provided is a laminated body for an energy storage device outer packaging material which can give sufficient moldability. The laminated body 1 for an energy storage device outer packaging material includes a metallic barrier layer 3, a base material layer 2 made of a heat-resistant resin laminated on the outside surface of the barrier layer 3, and a sealing layer 4 made of a heat-sealable resin laminated on the inside surface of the barrier layer 3 is. The base material layer 2 includes a polyester film layer 21 as an outer layer and a polyamide film layer 22 as an inner layer. The polyester film layer 21 has a sum of breaking strength in MD and breaking strength in TD of 500 to 600 MPa, a ratio of breaking strength in TD to breaking strength in MD of 0.8 to 1.1, and breaking elongation in MD and breaking elongation in TD of 110 to 200%. MD means machine flow direction and TD means a direction perpendicular to MD.
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