Bipolar Plate for Fuel Cell and Method for Preparing Same
AssigneeRobert Bosch GmbH
InventorsBicheng Chen, Xu Zhang, Xu Xie
Life of this patent
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Abstract
A method of preparing a bipolar plate for a fuel cell is disclosed. The method includes (a) using an electrically conductive filler and a polymer binder to prepare a bipolar plate blank, (b) vacuum-sealing the bipolar plate blank in a metal foil bag, (c) applying hot isostatic pressing to the bipolar plate blank vacuum-sealed in the metal foil bag at a pressure greater than 100 MPa and a temperature of 150-400° C., and (d) peeling the bipolar plate blank that has undergone the hot isostatic pressing from the metal foil bag, and thereby obtaining the bipolar plate. A bipolar plate prepared by the method is also disclosed.
Claims13
A method of preparing a bipolar plate for a fuel cell, comprising:
- a) using an electrically conductive filler and a polymer binder to prepare a bipolar plate blank,
- b) vacuum-sealing the bipolar plate blank in a metal foil bag,
- c) applying hot isostatic pressing to the bipolar plate blank vacuum-sealed in the metal foil bag at a pressure greater than 100 MPa and a temperature of 150-400° C., and
- d) peeling the bipolar plate blank that has undergone the hot isostatic pressing from the metal foil bag, and thereby obtaining the bipolar plate.
Dependencies are inferred from the claim text.