Graphite material and production method thereof
A graphite material has a flexible part and can be utilized as a heat-conveying material in a narrow space. The graphite material, includes: at least one heat-conveying part; and a flexible part. A method for producing a graphite material, includes: (i) subjecting at least one film serving as a material to a heat treatment to obtain at least one carbonaceous film; (ii) providing a monolayer or multilayer structure including the at least one carbonaceous film; and (iii) applying heat and pressure to at least one part of the monolayer or multilayer structure in an inert atmosphere.
1. A graphite material, comprising:
multiple heat-conveying parts; and
a flexible part,
wherein the multiple heat-conveying parts have a porosity of 1% to 30%, and the flexible part has a porosity of more than 30% to 50%,
the multiple heat-conveying parts and the flexible part are formed in a continuous manner, and basal planes of graphite in the multiple heat-conveying parts and the flexible part are continuous with each other, and
the flexible part is placed between two of the multiple heat-conveying parts.
2. The graphite material according to claim 1 , wherein the flexible part has a length of 1 mm or more.
3. The graphite material according to claim 1 , wherein a content of oxygen is 3.1 at % or less, and a content of nitrogen is 4.1 at % or less.
4. The graphite material according to claim 1 , wherein the graphite material comprises a multilayer structure with a gap between layers, each having a six-membered carbon ring structures of 3.73 angstroms or less.
5. The graphite material according to claim 1 , wherein said graphite material includes pores, and a part of the graphite material other than the pores consists essentially of carbon.