0.6 mm Titanium Fiber Felt for HT-PEMFC

Name: 0.6mm Titanium Fiber Felt for HT-PEMFC | TOPTITECHS
Brand: TOPTITECHS
SKU: TT-5644
Availability: InStock

Sintered titanium fiber felt engineered as a carbon-free gas diffusion layer for high-temperature PEM fuel cells (HT-PEMFC) running at 160–200°C. 0.6 mm thickness balances mass transport with mechanical support; 60–80% porosity delivers uniform reactant distribution and stable conductivity under thermal cycling.

Products Specifications

The 0.6 mm Titanium Fiber Felt for HT-PEMFC replaces carbon paper GDLs in phosphoric-acid-doped PBI membrane stacks. Above 160°C, conventional carbon-based diffusion layers oxidize to CO₂, which causes performance drift and membrane contamination. Titanium stays chemically inert across the entire HT-PEMFC operating window, giving a stable electrical contact and long service life.

Why titanium felt for HT-PEMFC?

Carbon-free corrosion resistance in phosphoric acid at 160–200°C.
Stable contact resistance — no drift across thermal cycles, unlike carbon paper.
High specific surface area for platinum or PTFE coating.
Conformable under stack clamping pressure — protects fragile PBI membranes.

Key specifications

Parameter	Value
Material	GR1 titanium fiber
Thickness	0.6 mm (tolerance ±0.02 mm)
Porosity	60 – 80 %
Standard size	100 × 100 mm (custom)
Max service temperature	480 °C
Optional coatings	Platinum / PTFE hydrophobic (5 wt%)
Technique	Vacuum sintering

Typical applications

Cathode GDL in phosphoric-acid-doped PBI membrane stacks.
Anode hydrogen diffusion medium in direct-methanol HT-PEMFC.
Interfacial contact layer between CCM and metallic bipolar plate.
Catalyst substrate for HT-PEMFC MEA fabrication.

TOPTITECHS supplies 0.6 mm titanium fiber felt with optional platinum or PTFE coating. Send us your active area, coating requirement and stack geometry — we will propose a custom cut size within one working day.