Bipolar plates and electrochemical cells employing the same

摘要

In one embodiment, a bipolar plate includes a wall area and a landing area defining a fluid flow channel, and a plurality of wires extending from at least one of the landing area and the wall area. In another embodiment, an electrochemical cell includes the aforementioned bipolar plate and a gas diffusion layer (GDL) adjacent the bipolar plate and contacting at least a portion of the plurality of wires.

主权项

1. A bipolar plate comprising:
a wall area and a landing area including a first surface and an opposing second surface, together defining a fluid flow channel; and a first and second plurality of wires extending from the first and second surfaces, respectively, and being formed of a metal and a metal alloy, and each of the plurality of wires having a density of 105 to 107 wires per square centimeter of the landing area, an average cross-sectional dimension of 0.01 to 500 μm and an average longitudinal dimension of 0.1 to 1,000 μm.