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Good Conductivity and Liquid Permablity Graphite Bipolar Plates. Superior Electrical Conductivity: Conductivity up to 600 S/cm, significantly reducing energy loss. Excellent Corrosion Resistance: Stable in strong acid environments (2-2.5 M H2SO4) with protective surface layer. High Mechanical Strength: Bending strength >25 MPa withstands stack assembly pressure effectively. Long-Term Stability: Efficiency loss below 1% after 100 cycles with PTFE additive.