The performance of graphite bipolar plates is highly affected by material selection, flow channel precision and sealing treatment. Common failure issues include channel burrs, edge chipping, gas leakage and uneven flow distribution, which will reduce fuel cell output and shorten stack life. Strict process control is required for every production step.

Key Advantages

Precision 5-axis CNC machining: Fine flow channels with tight tolerance, smooth surface to avoid burrs and sharp edges.

Impregnation sealing process: Fill internal pores to cut gas permeability and improve compression resistance.

Full inspection: Channel dimension, flatness, air tightness and resistance sampling test before delivery.

Flexible thickness options: Custom thin and thick plates for prototype validation and mass stack assembly.

Applications

Fuel cell R&D prototypes, new energy vehicle fuel cell stacks, energy storage flow batteries, hydrogen electrolyzer modules. Jiecheng Graphite accepts STEP and PDF drawings for custom graphite bipolar plates, supporting small batch sampling and bulk orders.