| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal bipolar plate for use in a fuel cell environment that exhibits ease of manufacture, and more specifically, a bipolar plate that is easy and inexpensive to manufacture while preserving the best mechanical/structural properties possible.SOLUTION: Provided are a bipolar plate used in a fuel cell and a method of making a bipolar plate. The sheet is made generally of a stainless steel, and preferably of a ferritic stainless steel. In one configuration, a stamping or related metal forming tool operation introduces a negative clearance as a way to move or otherwise reallocate a portion of the material making up the sheet into other portions in order to reduce stretching, necking, thinning and related thickness deviations associated with bends formed in the bipolar plate.SELECTED DRAWING: Figure 1 |
