This product, Carbon Paper HCP135 from Shanghai Heson, is developed for advanced electrochemical applications, particularly in fuel cells and zinc- or lithium-air batteries. It features a self-humidifying filling layer that enables internal water management, reducing the need for external humidification. With a thickness of 0.32 mm and an in-plane resistivity of no more than 35 mΩ·cm, it balances electronic conductivity with structural integrity. The material exhibits an air resistance greater than 20 mmH₂O, indicating a dense microstructure suitable for controlled gas diffusion, while its bending radius above 10 cm ensures adequate mechanical flexibility for electrode assembly. Although porosity data is not specified, the overall design prioritizes stable performance under varied humidity conditions. This carbon paper is commonly employed as a gas diffusion layer or electrode substrate in both low- and high-temperature fuel cell systems, as well as in metal-air battery research where reliable water transport and electrical contact are critical.

Product Name	HCP010N	HCP020N	HCP020P	HCP030N	HCP030P	HCP120	HCP121	HCP122	HCP125	HCP130	HCP135
Water Resistance	Non-waterproof	Non-waterproof	Waterproof	Non-waterproof	Waterproof	With Filling Layer	With Filling Layer	With Filling Layer	With Filling Layer	With Filling Layer	Filling (Self-humidifying)
Thickness (mm)	0.10	0.20	0.20	0.30	0.30	0.220	0.210	0.230	0.260	0.290	0.32
Resistivity (mΩ·cm)	≤10	≤11	≤16	≤12	≤18	≤23	≤14	≤15	≤31	≤34	≤35
Porosity (%)	80	80	75	80	75	一	一	一	一	一	一
Air Resistance (mmH₂O)	<11	<11	<12	<11	<12	>20	>20	>20	>20	>20	>20
Bending Radius (cm)	>10	>10	>10	>10	>10	>10	>10	>10	>10	>10	>10

Water Resistance	Filling (Self-humidifying)
Porosity	/
Thickness (mm)	0.32
Bending Radius	>10 cm
Air Resistance (mmH₂O)	＞20
Resistivity (mΩ·cm²)	≤35