Patent ID: 9595719
Date: 2017-03-14
CPC Classifications: B05D,B22F,C22C,C25D,H01G,H01M,Y02E,Y10T

Claim:
1. A composite metal foil consisting of: a porous metal foil composed of a metal fiber formed from metal particles that are connected to one another via nucleation; and a primer provided on at least a part of the interior and/or periphery of pores of the porous metal foil; wherein the metal fiber has a metal fiber diameter D, defining a width of a basal plane of the metal fiber, and a spherical part, defining a maximum cross-sectional height H of the metal fiber, and the metal fiber is irregularly networked along the basal plane; and wherein the porous metal foil has a thickness in a range of 3 to 40 μm corresponding to the maximum cross-sectional height H of the spherical part of the metal fiber, and a weight-based aperture ratio P of 3 to 60%, wherein the weight-based aperture ratio P is defined as: wherein W p /W n is a ratio of a weight W p of the porous metal foil to a theoretical weight W n of a non-porous metal foil having a composition and dimensions that are identical to those of the porous metal foil.