Advanced Graphite Felt for Enhanced Flow Battery Efficiency¹

Product Description Our products have developed rapidly in both domestic and foreign markets. In terms of flow battery electrode products, it holds a leading position in the domestic market, with products applied in multiple domestic flow battery demonstration power stations, and after long-term operation verification, the product quality has also been widely recognized in foreign markets. In terms of carbon fiber thermal insulation materials, they are widely used in various industries such as hard alloys and special ceramics.Widely used in the field of photovoltaic solar energy, vacuum heat treatment, cemented carbide, new energy storage, metallurgical high temperature thermal field, mechanical manufacturing high temperature and high pressure molding and other fields.Our mainly product:1. Flow battery electrode materials: Graphite felt for flow battery electrodesThis product is a special graphite felt electrode material for flow batteries, processed using different treatment processes according to the different performance requirements of various flow batteries for electrode graphite felt. The basic processes include: non-woven needle punching, carbonization, graphitization, and fiber surface post-treatment. This product features a flat felt body, uniform thickness, and consistent electrochemical performance throughout. It is currently widely used in vanadium flow battery electrode materials, zinc-bromine flow battery electrode materials, and zinc-air (zinc-oxygen flow battery electrode materials), with characteristics such as low internal resistance of the stack, good and uniform electrochemical activity, good corrosion resistance, low cycle decay of the stack, and high energy efficiency. 2. Specifications and Models Regular SizesLength (m)10/20/50/100Width (m)1.42/1.45Thickness (mm)2.2/3.0/3.6/4.2/4.35/4.6/4.8/5.0/5.6/6.0/7.0OthersCut according to customer requirements3. Technical Indicators and ParametersCarbon Content / %>99Ash Content / %<0.3Bulk Density / (g/cm3)0.08-0.11Specific Surface Area / (m2/g)2.3-4Felt Shedding Rate / (g/gram felt)2-3Oxidation Rate / (weight loss/hour @600oC in air)≤3%Porosity / %90-95Surface Resistance / (Ω/cm2)<0.154. Vanadium Flow Battery Performance Curve  5. Exploration of Activation Mechanism (Influence of Active Functional Groups) 6. Exploration of Activation Mechanism (Microscopic Surface Area Imaging) 7. Electron Microscopy Images of Electrode Graphite Felt for Batteries 8. Professional Team and Technical SupportOur company has a complete vanadium battery testing system. The testing instruments simulate the working principles of large battery energy storage devices to test the performance of graphitized battery felt. At the same time, further modification of the graphite improves its energy efficiency. Under a current density of 100mA/cm2, the energy efficiency is greater than 85%; at 120mA/cm2, it is greater than 84%; at 160mA/cm2, it is greater than 82%.The main technical parameters include coulombic efficiency, energy efficiency, and voltage efficiency.9. Packaging and TransportationPackaging: Woven bag packagingTransportation Method: Road logistics or express delivery10. PrecautionsDo not apply heavy pressure during transportation and storage, keep it moisture-proof, and it can be cut as needed. 2. High temperaure thermal insulation materials1)PAN-based cured graphite felt1) Product DescriptionThis product is made of PAN-based carbon felt as the matrix material. It has certain rigidity, self-supporting properties, low specific gravity, no short fiber shedding, and low thermal conductivity.It is suitable for various vacuum heat treatment furnaces, powder metallurgy sintering furnaces, and other furnace types. It can provide various shapes such as flat plates, discs, and cylinders, with a long service life and easy installation and removal.2) Specifications and ModelsManufactured according to user drawings or agreed upon with the user.3) Surface TreatmentA. No treatment; B. Adhesive graphite paper; C. Adhesive graphite cloth; D. Surface coating4) Technical Indicators and ParametersPerformance IndicatorsUnitPAN-based cured carbon feltPAN-based cured graphite feltBulk Densityg/cm30.15-0.280.13-0.25Thermal Conductivity in Nitrogen1000oCw/k.m0.15-0.200.28-0.31Compressive Strength ∥⊥M/Pa>2.81>1.47>2.45>1.05Flexural Strength ∥⊥M/Pa>1.88>0.96>1.48>0.69Carbon Contentw%>97>99.80Ash Contentw%<0.4<0.1Processing TemperatureoC125022005) Packaging and TransportationPackaging: Wooden box packagingTransportation method: Road logistics or express delivery6) PrecautionsWhen the temperature exceeds 400oC, it must be used in a protective atmosphere or inert gas; during transportation and storage, it should not be subjected to heavy pressure and must be moisture-proof. 2)Oxidized filament(PAN-based) soft graphite felt3)Viscose-based cured graphite felt4)Viscose-based soft graphite felt 

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