Provided are: an aluminum alloy sheet that is for a battery lid and that has excellent heat dissipating ability, moldability, and work-softening properties, wherein the aluminum alloy sheet can be used to mold an integrated explosion-proof valve that has less variations in working pressure and excellent cyclic fatigue resistance characteristics; and a production method for the aluminum alloy sheet. This aluminum alloy sheet is for a battery lid for molding an integrated explosion-proof valve, and is characterized by: having a compositional makeup which includes 1.05-1.50 mass% of Fe, 0.15-0.70 mass% of Mn, 0.002-0.15 mass% of Ti, and less than 0.04 mass% of B, the balance being Al and impurities, wherein the Fe/Mn ratio is limited to 1.8-7.0, the amounts of Si, Cu, Mg, and V, which are impurities, are limited to less than 0.40 mass%, less than 0.03 mass%, less than 0.05 mass%, and less than 0.03 mass%, respectively; having an electric conductivity of 53.0% IACS or more and an elongation value of 40% or more; having a recrystallized structure; having a value (TS95 – TS80) of less than -3 MPa, where TS80 represents the tensile strength after cold rolling is performed at a rolling-reduction ratio of 80%, and TS95 represents the tensile strength after cold rolling is performed at a rolling-reduction ratio of 95%; and having a value of elongation of 5.0% or more, after cold rolling is performed at a rolling-reduction ratio of 90%. Furthermore, the average crystal grain size of recrystallized grains in the recrystallized structure is preferably 15-30 μm.