Fuel cell pole plate forming method based on expanded graphite
A fuel cell electrode plate, expanded graphite technology, applied in fuel cells, circuits, electrical components, etc., can solve problems affecting mass production scale, and achieve the effects of pipeline operation, improved production efficiency, good air permeability and electrical conductivity
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Embodiment 1
[0023] The fuel cell electrode plate forming method based on expanded graphite includes the following steps:
[0024] (1) Powder vacuum impregnation: Put the raw material powder of the fuel cell graphite board into the reactor, vacuum and maintain for 10-30 minutes, inject the liquid resin without releasing the vacuum, so that the raw material powder can be completely immersed; 0.5-1MPa is maintained for 8-12 minutes, and then the pressure is released to obtain "wet material" for use; the raw material of the fuel cell graphite plate is conventional graphite plate formula fuel, and the graphite powder used is vermicular graphite powder.
[0025] (2) Plate making: the wet material is extruded through a filter press to make an expanded graphite plate, during which excess resin will be extruded to reduce the resin content in the plate;
[0026] (3) Cutting and forming: The expanded graphite plate obtained in step (2) is divided into the required size of the fuel cell electrode plate by a...
Embodiment 2
[0029] The fuel cell electrode plate forming method based on expanded graphite includes the following steps:
[0030] (1) Powder vacuum impregnation: Put the raw material powder of the fuel cell graphite board into the reactor, vacuum and maintain for 10-30 minutes, and inject the liquid resin without releasing the vacuum, so that the raw material powder can be completely immersed, and then fully mixed The vacuum is released to obtain "wet material" for use; the raw material of the fuel cell graphite plate is conventional graphite plate formula fuel, and the graphite powder used is vermicular graphite powder.
[0031] (2) Plate making: Extruding the wet material into an expanded graphite plate by rolling and controlling the thickness, during which excess resin will be extruded to reduce the resin content in the plate;
[0032] (3) Cutting and forming: The expanded graphite plate obtained in step (2) is divided into the required size of the fuel cell electrode plate by a knife edge mo...
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