Graphite sheet processed product and method of manufacturing graphite sheet processed product

摘要

The processed graphite sheet of the present invention has a thickness of 10 nm or more and 20 μm or less for the purpose of realizing a processed graphite sheet made of high quality graphite and having a smooth cut surface even when cut and processed. 90% or more continuous or discontinuous graphite layer is confirmed in the horizontal direction by cross-sectional observation with a scanning electron microscope (SEM), and the average crystal grain size of graphite inside the graphite sheet is 0.35 μm to 25 μm, The size of the burr on the cut surface is 15% or less of the line width, and the line width is less than 400 μm.