Surface-coated metal porous body
View Patent ↗A surface-coated metal porous body having a three-dimensional network structure, the surface-coated metal porous body including: a framework forming the three-dimensional network structure; and a coating film provided on a surface of the framework, wherein the framework has a body including a metal element as a constituent element, the coating film includes a scale-like carbon material and a fine-grained conductive material, a distance D between two points that are farthest from each other on an outer perimeter of a main surface of the scale-like carbon material is 5% or more and 120% or less relative to a thickness of the framework, and the scale-like carbon material is deposited on the surface of the framework.
1 . A surface-coated metal porous body having a three-dimensional network structure, the surface-coated metal porous body comprising:
a framework forming the three-dimensional network structure; and
a coating film provided on a surface of the framework, wherein
the framework has a body including a metal element as a constituent element,
the coating film includes a scale-like carbon material and a fine-grained conductive material,
a distance D between two points that are farthest from each other on an outer perimeter of a main surface of the scale-like carbon material is 5% or more and 120% or less relative to a thickness of the framework, and
the scale-like carbon material is deposited parallel to the surface of the framework.
2 . The surface-coated metal porous body according to claim 1 , wherein the coating film has a thickness of 0.2 μm or more and 100% or less of a thickness of the body of the framework.
3 . The surface-coated metal porous body according to claim 1 , wherein the scale-like carbon material includes graphite.
4 . The surface-coated metal porous body according to claim 1 , wherein the scale-like carbon material has an aspect ratio of 5 or more and 100 or less.
5 . The surface-coated metal porous body according to claim 1 , wherein the fine-grained conductive material includes at least one selected from the group consisting of carbon black, titanium, spheroidal graphite, and stainless steel.
6 . The surface-coated metal porous body according to claim 1 , wherein the metal element in the body of the framework includes at least one selected from the group consisting of nickel, aluminum, copper, chromium, and tin.
7 . The surface-coated metal porous body according to claim 1 , wherein, when the body of the framework is observed in cross section at a magnification of 3,000 times to obtain an observed image, the observed image presents in any area 10 μm square thereof five or less voids each having a major axis of 1 μm or more.
8 . The surface-coated metal porous body according to claim 1 , wherein the framework is hollow.