POSCO Holdings Inc.
Fe--Ni alloy metal foil having excellent heat resilience and method for manufacturing same

Abstract:

An aspect of the present invention provides an Fe--Ni alloy metal foil having excellent heat resilience, where the Fe--Ni alloy metal foil is prepared by an electroforming (EF) method and has a thickness of 100 .mu.m or less (except O .mu.m), wherein the Fe--Ni alloy metal foil comprises, by wt %, Ni: 34-46 %, a remainder of Fe and inevitable impurities, and wherein the Fe--Ni metal foil has a degree of heat resilience in an amount of 30 ppm or less.