Dongyue Future Hydrogen Energy

Dongyue Future Hydrogen's perfluorosulfonic acid (PFSA) fuel cell proton exchange membrane is a solid polymer electrolyte - a homogeneous membrane made of perfluorosulfonic acid resin with ionic-exchange functional end groups. It offers excellent thermal, mechanical, electrochemical and chemical stability and can be used under harsh conditions such as strong acids, strong alkalis and strong oxidants. In-production models (PFSA fuel cell proton membrane series) and key parameters: DF260: representative/previous-generation mass-produced product, minimum thickness approx. 10-15 um (industry data records 15 um); OCV durability >600 h, passed AFCC 6000 h test and Mercedes-Benz/Ford 6000 h tests, dry-wet cycling and mechanical stability cycling >20,000 cycles. DM2266: thickness 12+/-1 um, basis weight 25+/-2 g/m2; conductivity (85C, 50%RH) >=50 mS/cm; tensile strength >=30/30 MPa; chemical durability 800 h (OCV holding @DOE, 90C-30%RH); mechanical durability 20,000 cycles (RH cycling @DOE, 80C); chemomechanical durability 20,000 cycles (COCV @DOE, 90C); hydrogen permeation rate <=2x10^-9 cm3*cm/(cm2*s*Pa). DM2256: thickness 15+/-1 um, basis weight 28+/-2 g/m2; conductivity >=40 mS/cm; chemical durability 800 h; mechanical durability 20,000 cycles. DM2276: thickness 10+/-1 um, basis weight 22+/-2 g/m2; conductivity >=50 mS/cm; tensile strength >=40/40 MPa; chemical durability 800 h; mechanical durability 20,000 cycles; this 10 um ultra-thin proton membrane won the 2023 Shandong Province Top 10 Scientific and Technological Innovation Achievement award. DMR100: thickness 15+/-1 um, basis weight 28+/-2 g/m2; conductivity >30 mS/cm; tensile strength >43/43 MPa; chemical durability 800 h; mechanical durability 26,000 cycles; hydrogen crossover current density <=25 mA/cm2/MPa. DM2136: thickness 18+/-1 um, basis weight 33+/-2 g/m2; conductivity >=50 mS/cm; chemical durability 1500 h; mechanical durability 20,000 cycles. Chemical system: PFSA homogeneous membrane; test/working temperature reference 80-90C; supplied in rolls with a backing film for automated MEA production; four-layer vacuum packaging (heat-seal bag/dust-removal bag/PE bag/carton). Storage: 23+/-5C, relative humidity 50+/-5% (after opening).

Thickness 10-18 um; Proton conductivity >=40 mS/cm (85C, 50%RH); Chemical durability 800-1500 h; Mechanical durability >=20,000 cycles (RH cycling @DOE, 80C); Tensile strength >=30/43 MPa; Hydrogen crossover current density <=25 mA/cm2/MPa; OCV durability >600 h; Operating temperature 80-90C

• Passenger vehicles, commercial vehicles (fuel cell vehicles), forklifts, drones, backup power, portable generators, and combined heat and power (CHP) systems for homes and commercial buildings - membrane electrode assemblies (MEA) in hydrogen fuel cell applications.

Dongyue Future Hydrogen's water electrolysis hydrogen-production membrane (PEM Water Electrolysis Membrane) is a solid polymer electrolyte - a homogeneous membrane of perfluorosulfonic acid resin with ionic-exchange functional end groups, offering excellent thermal, mechanical, electrochemical and chemical stability and usable under harsh conditions such as strong acids, strong alkalis and strong oxidants; widely used in PEM water electrolysis for hydrogen production. In-production models and key parameters: DM6526: thickness 80+/-4 um, basis weight 155+/-8 g/m2; exchange capacity >0.95 mmol/g; tensile strength >=50/50 MPa (ASTM D882); elongation at break >=250/250%; elastic modulus >=300/300 MPa; dimensional change <=5/5%; proton conductivity >=150 mS/cm (GB/T 20042.3-2022); hydrogen-in-oxygen content 0.05% (80C, 0.5 A/cm2). DM6321: thickness 120+/-10 um, basis weight 250+/-10 g/m2; tensile strength >=28/28 MPa; elongation at break >=200/200%; Young's modulus >=200/200 MPa; dimensional change <=25/25/25%; proton conductivity >=140 mS/cm. DME670: thickness 175+/-10 um, basis weight 350+/-10 g/m2; tensile strength >=25/25 MPa; elongation at break >=200/200%; Young's modulus >=180/180 MPa; dimensional change <=25/25/25%; proton conductivity >=140 mS/cm. DME6725: thickness 50+/-3 um, basis weight 98+/-5 g/m2; tensile strength >=30/30 MPa; elongation at break >=280/280%; Young's modulus >=200/200 MPa; hydrated dimensional change <=18/18/35%; proton conductivity >=140 mS/cm. DM6525: thickness approx. 80 um, with high strength, high conductivity and excellent electrolysis durability. Chemical system: PFSA homogeneous membrane; supplied as cut sheets; storage 23+/-5C, relative humidity 30-70%.

Thickness 50-175 um; Exchange capacity >0.95 mmol/g (DM6526); Proton conductivity >=140-150 mS/cm; Tensile strength >=25-50 MPa; Elongation at break >=200-280%; Hydrogen-in-oxygen content 0.05% (80C, 0.5 A/cm2); Dimensional change <=5-25%

• PEM water electrolysis industrial hydrogen production, hydrogen-health products and water-electrolysis hydrogen-production equipment.

Dongyue Future Hydrogen's liquid flow battery membrane (Vanadium/Flow Battery Membrane) is prepared from perfluorosulfonic acid resin - a proton exchange membrane with unidirectional cation transport, featuring small thickness, high strength, low swelling, high dimensional stability and good durability. In-production models and key parameters: DM8130A: thickness 60+/-3 um, basis weight 140+/-10 g/m2; tensile strength >30/30 MPa (NB/T 42080-2023); elongation at break >=150/150%; puncture strength >=600 gf; water content <=7%; dimensional change <=5/5%; vanadium ion permeability <=5x10^-7 cm2/min; electrochemical performance @160 mA/cm2: Coulombic efficiency >=96.5%, voltage efficiency >=83.5%, energy efficiency >=81.5%. DMV850: a composite membrane of PFSA resin and reinforcing material (composite PFSA ion membrane) with unidirectional cation transport, thin thickness, high strength, low swelling, high dimensional stability and good durability. Chemical system: PFSA homogeneous/Composite membrane; storage 23+/-5C, relative humidity 30-70%.

Thickness 60+/-3 um (DM8130A); Tensile strength >30/30 MPa (NB/T 42080-2023); Puncture strength >=600 gf; Water content <=7%; Vanadium ion permeability <=5x10^-7 cm2/min; Coulombic efficiency >=96.5%; Voltage efficiency >=83.5%; Energy efficiency >=81.5% (@160 mA/cm2); Dimensional change <=5/5%

• All-vanadium flow batteries, iron-chromium flow batteries and other flow-energy-storage batteries.

Dongyue Future Hydrogen's perfluorosulfonic acid resin (Perfluorosulfonic Acid Resin, Ionomer) is a special polymer among fluorinated macromolecular materials, with extraordinary stability and chemical-media resistance; it is a key intermediate raw material (ionomer) for producing PFSA proton exchange membranes. In-production models (PFSA resin series) and key parameters: DHS1103F: end-group state -SO2F (white powder & granules); ion-exchange capacity 1.03+/-0.02 mmol/g; decomposition temperature >350C; density 1.98+/-0.05 g/cm3. DHS1103N: end-group state -SO3Na. DHS1103H: end-group state -SO3H. In addition, the company's 1.5-million-m2 fuel cell membrane and supporting-chemical industrialization project includes 50 t/a (phase I)/150 t/a PFSA ion-exchange resin facilities, with products including HS resin, HSM resin, SS resin grades. Packaging: powdered products double-layer PE-bag sealed, customized per customer requirement; recommended drying temperature 70-80C, not exceeding 120C.

End-group state -SO2F/-SO3Na/-SO3H; Ion-exchange capacity 1.03+/-0.02 mmol/g (DHS1103F); Decomposition temperature >350C; Density 1.98+/-0.05 g/cm3; Resin capacity 50 t/a (phase I)/150 t/a; Drying temperature 70-80C (<=120C)

• PFSA proton-membrane fuel cells, chlor-alkali industry, lithium-ion secondary batteries, other electrolysis devices, wastewater treatment, chemical catalysis, photocatalysis, gas separation, functional composite materials (including electroactive polymers for robotics), etc.; also used as a key intermediate raw material (ionomer) for producing fuel cell proton exchange membranes.