| 摘要 |
PURPOSE:To enable a bipolar plate to be easily manufactured using a simple operation by uniformly kneading a mixture, making it a sheet attached with a one side groove, in the sheet only a thickness direction part of dually divided parts of the bipolar plate in the horizontal direction is thickened by a rolling mill, heat pressing with divided parts overlapped, and hardening a resin. CONSTITUTION:A mixture composed of a conductive material and a thermosetting resin such as a phenol resin or fran resin is made to be a clay-state by heat pressing, then the clay-state mixture is extruded to a sheet-state using an extruder etc., passed through between rolls of a rolling mill, and is made to be a sheet attached with a one-side groove. In this case, the sheet thickness is made to be thicker than that of the upper part 1 and the lower part 2 which are dually divided bipolar plate 3 finally to be manufactured in the thickness direction. And each is cut at a given dimension, plain surfaces of two sheets attached with one-side grooves are overlapped so that the grooves cross mutually and placed in a die, a resin is hardened by heat pressing, and thereby a bipolar plate 3 is made. This enables the bipolar plate 3 having conductivity and no permeability to be easily manufactured. |
