Sintered Porous Filter

High-power fuel cells require continuous supply of large amounts of hydrogen and air. Excessive gas flow resistance increases the operating load of air compressors and gas supply systems, resulting in higher auxiliary energy consumption and reduced overall system efficiency. Manufactured through high-temperature integrated sintering technology, our filters provide precisely adjustable porosity ranging from 30% to 80%. Their pore size distribution is uniform, without blocked channels or dead zones. Compared with conventional porous plates and mesh structures, they significantly reduce gas flow resistance and minimize pressure loss. Under continuous high-flow gas supply conditions, the filter reduces kinetic energy losses during gas transportation, allowing fuel cell stacks to achieve peak power output without requiring excessive supply pressure. This helps reduce balance-of-plant energy consumption and improves overall energy utilization efficiency. Meanwhile, the stable porous structure prevents pore collapse, clogging, or deformation under long-term gas flow impact, maintaining consistent low-resistance operation and ensuring reliable fuel cell performance with reduced energy consumption.

Fuel cell systems require extremely high gas purity. Dust particles, airborne contaminants, moisture, and trace impurities carried by hydrogen streams may enter the stack and cause irreversible damage, including membrane electrode blockage, catalyst layer corrosion, and proton exchange membrane contamination. Conventional filtration components often struggle to achieve both high flow capacity and high filtration accuracy. They either create excessive resistance that restricts gas supply or fail to effectively remove contaminants. Sintered metal porous filters utilize precisely designed gradient microporous structures to efficiently capture solid particles, suspended contaminants, and trace liquid impurities while maintaining high gas permeability. Their high-throughput design ensures unrestricted gas supply, while the integrated metal structure eliminates fiber shedding and media leakage commonly associated with traditional filter materials. By providing continuous delivery of high-purity reaction gases, these filters protect critical fuel cell components from contamination and significantly improve system stability and service life. They are suitable for intensive long-term applications including vehicle fuel cells, energy storage systems, and distributed power generation systems.

High-power fuel cells require continuous supply of ultra-large volumes of hydrogen and compressed air during heavy-load operation, peak power output, and dynamic load variations to support intensive electrochemical reactions. Excessive flow resistance in gas filtration and diffusion components can result in significant pressure loss, insufficient gas flow, and reduced stack power output. Meanwhile, high resistance increases the operating load of auxiliary components such as air compressors and hydrogen circulation pumps, raising parasitic energy consumption and reducing overall power generation efficiency. In practical applications such as vehicle-mounted systems and energy storage, fuel cells operate under complex and variable conditions, including frequent start-stop cycles, rapid load fluctuations, and thermal cycling.

High-speed, high-volume gas flows are prone to turbulence, flow deviation, and uneven pressure distribution. If gases enter the fuel cell stack without effective flow regulation and homogenization, uneven gas supply between individual cells, localized reaction overload, and inconsistent polarization may occur. These conditions can affect voltage consistency, power output, energy efficiency, and the service life of individual cells. NAVI Titanium provides sintered porous metal components designed for controlled gas distribution, combining a uniform pore structure with stable mechanical performance. By buffering and distributing turbulent gas streams, the porous structure supports more consistent gas concentration, velocity, and pressure across the membrane electrode reaction area. This makes the components suitable for fuel cell gas management systems where stable diffusion, controlled flow, and repeatable operating performance are important technical requirements.