Composite ion injection method for dual polar plates of proton exchange membrane fuel cell
A technology of proton exchange membranes and fuel cells, which is applied to fuel cell parts, battery electrodes, circuits, etc., can solve problems such as thermal deformation of stainless steel bipolar plates, TiN coating defects, limited corrosion resistance, etc., to improve The effect of mass specific energy and volume specific energy, reducing material cost, and avoiding the increase of unevenness
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[0020] The embodiments of the present invention are described in detail below in conjunction with the accompanying drawings: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following the described embodiment.
[0021] Take 316L stainless steel through conventional grinding, water washing, alcohol washing, degreasing and drying, then put it into a multifunctional ion coating machine for vacuuming, and wait until the vacuum degree reaches 1 to 3×10 -3 The composite ion implantation starts at Pa, the accelerating voltage is 10-60KeV, and the beam intensity is 1-10uA. The specific process parameters are shown in the table below:
[0022] Table 1 Stainless steel bipolar plates treated under different process conditions
[0023] Example Types of injected elements I...
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