ADHESIVE, LAMINATE, BATTERY PACKAGING MATERIAL, AND BATTERY

To provide: an adhesive having excellent adhesivity between a non-polar substrate such as an olefin resin and a metallic substrate even when aged at a low temperature; a laminate obtained by using the adhesive; a secondary battery exterior material obtained by using the laminate; and a battery.SOLUTION: Provided are: an adhesive comprising an acid group-containing resin (A) and a curing agent (B), where the curing agent (B) contains, as an essential component, an epoxy compound (B1) which has a structure where an aromatic hydrocarbon group (a1) having on the aromatic nucleus with a binding site for another group and a hydrocarbon group (a2) including an ether bond or a linear C2-15 alkylene group (a3) are bound via an acetal bond (a4) and has a structure where a glycidyloxy group is bound to the aromatic hydrocarbon group (a1); a laminate using the adhesive; a battery packaging material; and a battery.SELECTED DRAWING:...