Comprehensive Solutions for the New Energy Industry
I. Fluid Control Product Solutions for the New Energy Industry
1. Typical Operating Challenges in the New Energy Industry
The new energy industry, particularly in areas like lithium battery, photovoltaic (PV), and hydrogen energy, faces multiple conditions in production, storage, and transportation:
Extreme Corrosiveness: Cathode material slurries like lithium cobalt oxide, nickel cobalt manganese oxide, lithium iron phosphate in lithium battery production are highly abrasive and weakly alkaline (pH≈10-11). LiPF6 in the electrolyte reacts with water to generate HF (hydrofluoric acid), which is extremely corrosive. The hydrogen embrittlement effect in hydrogen fuel cells (hydrogen molecules penetrating the metal lattice causing embrittlement) and the high-pressure environment (35MPa-70MPa) in hydrogen storage and transportation pose severe challenges to materials. Strongly corrosive gases and liquids like HCl, Cl2, SiCl4 in PV polysilicon production are equally harsh.
High Purity and Cleanliness Requirements: Processes like lithium battery separator coating, electrolyte filling, and PV silicon material handling require fluid systems with extremely low metal ion leaching and particle shedding. Any contamination can affect battery performance or solar conversion efficiency. Semiconductor-grade polysilicon requires purity levels up to 99.9999999% (9N) or higher.
High Temperature and High Pressure: In the hydrogen energy sector, onboard hydrogen storage systems operate at pressures up to 35MPa or even 70MPa. Drying processes in lithium battery production (>120°C) and high-temperature chlorination processes in PV polysilicon production (>300°C) demand excellent temperature resistance from equipment.
Safety and Reliability: New energy materials are often flammable and explosive (e.g., hydrogen, organic solvents, metal powders), making leakage risk a top priority. Hydrogen has high permeability and an extremely wide explosion range (4%-75%), requiring valves with zero leakage and anti-static functionality. The vibration and shock environment of hydrogen fuel cell vehicles require components with high vibration resistance.
2. Our Specific Product Solutions and Effectiveness for the New Energy Industry
To address the above challenges, our company offers the following fluid control product solutions:
Product Category | Specific Solutions and Effectiveness |
Special Material Valve Series (Small needle valves, ball valves, etc.) | Solution: Provides a full range of corrosion-resistant and high-pressure resistant material options. |
316 Stainless Steel Safety Valves | Solution: Provides 316/316L Stainless Steel safety valves to protect electrolyte storage tanks, hydrogen storage tanks, reactors, etc., from overpressure damage. |
316 Stainless Steel Pressure Reducing Valves | Solution: Provides 316L Stainless Steel pressure reducing valves to stably reduce the pressure of high-pressure fluids (e.g., hydrogen, compressed air) to the pressure required by downstream processes. |
316 Stainless Steel Diaphragm Valves | Solution: 316L Stainless Steel diaphragm valves feature a dead-leg-free design, suitable for slurries, corrosive media, and high-purity applications (e.g., lithium battery anode/cathode slurry, chemical injection). The diaphragm isolates the valve inner cavity from the actuator, preventing medium corrosion of upstream components. |
316 Stainless Steel Micro Pneumatic Control Valves | Solution: Used for precise control of the injection volume of corrosive chemical additives and gases (e.g., H2), featuring rapid response and precise control. |
PTFE Solenoid Valves | Solution: Valve body made of PTFE, suitable for automatic on/off control of various highly corrosive chemicals (e.g., electrolyte, acids, alkalis, solvents). |
Fittings & Flanges | Solution: Provides fittings and flanges (PTFE, PFA, PVDF, 316L, Duplex 2205, Hastelloy C-276, Nickel alloy 625) fully matching the valve and tubing materials, ensuring material consistency and integrity throughout the entire flow path system and avoiding galvanic corrosion. |
Tubing | Solution: Provides tubing in various materials: |
3. Brief Success Case Studies
Case 1: Large-Scale Lithium Battery Electrolyte Delivery System
Challenge: Delivering organic solvent electrolyte containing LiPF6, which generates HF acid upon contact with trace water, corroding ordinary stainless steel, contaminating the electrolyte, and leading to decreased battery performance.
Solution: The entire electrolyte delivery and filling system utilized full PFA material diaphragm valves, tubing, and fittings.
Effectiveness: The system completely resisted HF corrosion, with no metal ion leaching, ensuring electrolyte purity. Battery consistency and yield significantly improved. The system has operated stably for 2 years without failure.
Case 2: Multi-Function Valve Block for an Onboard Hydrogen Storage System
Challenge: Needed to integrate filtration, pressure reduction, and safety relief functions within a limited space, withstand 35MPa high pressure, hydrogen environment, and vehicle vibration/shock, while preventing hydrogen embrittlement and leakage.
Solution: Utilized a multi-function combination valve precision-machined from 316L stainless steel, with the valve body undergoing anti-hydrogen embrittlement treatment and seals optimized for hydrogen's high permeability.
Effectiveness: The valve block is compact, highly integrated, offers good vibration resistance, is easy to disassemble/assemble, and can operate safely and stably for long periods in a 35MPa high-pressure hydrogen environment, meeting onboard requirements.
II. Specific Application of Industrial Protection Products in the New Energy Industry
1. Typical Operating Challenges in the Industry
The exteriors of equipment and facilities in the new energy industry also face severe tests:
Severe Chemical and Atmospheric Corrosion: Lithium battery production workshops may have trace HF acid mist and alkaline dust; PV power stations, wind farms, and hydrogen energy facilities in coastal areas face marine atmospheric corrosion from high salt spray and humidity; Acidic gases from PV processes can also corrode equipment exteriors.
High Temperature and Heat Loss: Heat dissipation from surfaces of drying ovens in lithium battery production, compressors in hydrogen energy systems, fuel cell stacks, and high-temperature furnaces in PV silicon material production leads to significant energy loss and poses burn risks.
Dust and Explosion Risk: Electrode materials in lithium battery production (e.g., graphite, lithium cobalt oxide) and dust pose combustion and explosion risks (minimum ignition energy as low as 1-10mJ), requiring effective dust removal and explosion-proof measures. PV silicon material crushing and cutting also generate dust.
Equipment Wear and Mechanical Damage: Wind turbine blades and towers suffer from wind and sand erosion; Mixing and calendering equipment in lithium battery production experiences wear; Vehicle vibration impacts components in onboard energy systems.
Difficult and Costly Maintenance: New energy facilities (e.g., wind farms, PV power stations) are often scattered and located in harsh environments. Repairing or replacing corroded or faulty equipment is difficult and expensive, thus requiring extremely high durability and reliability from protective products.
2. Corresponding Solutions Listed by Product
Product Category | Corresponding Solutions |
PTFE Industrial Dust Filter Bags | • Application: Installed in baghouse dust collectors for dust-generating processes in lithium battery production (electrode manufacturing, crushing/screening), PV silicon material handling, etc., to collect combustible, explosive dust (e.g., graphite, metal oxides). PTFE membrane filter bags have a smooth surface where dust does not easily adhere, offer good cleaning performance, their excellent chemical resistance withstands acid/alkali corrosion, and their conductivity can be adjusted to help dissipate static electricity and prevent explosions. |
Fluoropolymer Custom Components (PTFE/PFA/PVDF) | • Application: Custom production of seals, bearings, bushings, insulating parts, etc., for equipment interiors. For example, using PTFE or PVDF seal rings for lithium battery slurry transfer pumps, offering self-lubricating, corrosion-resistant, non-stick properties. PFA components can be used for high-purity chemical tanks. Insulating parts in fuel cells can also use PTFE material. |
Special Alloy Custom Components (Duplex 2205, Hastelloy C-276, Nickel alloy 625) | • Application: Customizes key wear parts and reinforced components like wear-resistant blades, shaft sleeves, gears, valve cores made from special alloys for wind turbine gearboxes, lithium battery mixing equipment, hydrogen energy compressors, etc. Duplex 2205 has also been successfully applied in frames and battery boxes for new energy heavy-duty trucks, replacing traditional carbon steel, providing excellent corrosion resistance, fatigue resistance, and deformation resistance, achieving weight reduction. |
PTFE Flange Protection Covers | • Application: Slip over pipeline flange connections outdoors or in corrosive environments (e.g., PV chemical plants, inside coastal wind turbine towers, lithium battery workshops), completely enveloping the flange, bolts, and gasket. |
Thermal Insulation Jackets | • Application: Custom flexible or rigid insulation jackets for high-temperature equipment like lithium battery drying equipment, hydrogen energy system compressors, fuel cell stacks, and PV polysilicon furnaces. |
PTFE-Impregnated Fibercloth / Cloth Tape / Film Tape | • Application: PTFE-impregnated fibercloth can be used to make corrosion-resistant, anti-stick protective covers or equipment liners, wrapped around equipment exteriors like valves and pumps. PTFE film tape can be applied to equipment surfaces, bolts, or cables to provide temporary corrosion and anti-stick protection, especially useful during equipment maintenance. |
3. Brief Success Case Studies
Case 1: Corrosion Protection and Lightweighting for a New Energy Heavy-Duty Truck Frame and Battery Box
Challenge: Traditional high-strength carbon steel frames and battery boxes were prone to corrosion and fatigue failure in coastal, high-humidity industrial environments, and their heavy weight affected range. Coating protection posed environmental pollution and failure risks.
Solution: Utilized economical duplex stainless steel material to manufacture the frame and battery box.
Effectiveness: The frame and battery box demonstrated excellent corrosion resistance, fatigue resistance, and deformation resistance, showing no significant rust under harsh conditions. Simultaneously achieved lightweighting, improving vehicle range, and avoided pollution associated with painting.
Case 2: Dust Removal System for a Lithium Battery Cathode Material Production Line
Challenge: Cathode material dust (e.g., NMC) was somewhat corrosive and prone to adhesion. Ordinary filter bags were difficult to clean, prone to hardening, posed a dust explosion risk, and had short service life.
Solution: Replaced the filter bags in the dust collection points with PTFE membrane filter bags.
Effectiveness: The dust removal system's operating resistance decreased, cleaning efficiency greatly improved, filtration efficiency reached 99.99%, effectively controlling workshop dust concentration and eliminating the explosion hazard. The filter bags had strong corrosion resistance, and service life was significantly extended.
We are committed to providing the new energy industry with comprehensive material solutions ranging from core process fluid control to peripheral equipment protection. Our product series aim to help customers address core challenges like high corrosion, high pressure, high purity, wear, and explosion risks, ensuring facility stable operation, improving production efficiency and product yield, reducing overall costs, and meeting stringent environmental and safety requirements.
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