Fuel Cell High Pressure Hydrogen Storage Cylinder Type III IV 35 70MPa Carbon Fiber Fully Wrapped

Fuel Cell Vehicle High-Pressure Hydrogen Storage Cylinder Type III/IV Series Working Pressure 35/70MPa Carbon Fiber Fully Wrapped Plastic Liner Large Volume Lightweight Design

Quick Detail:

• High-pressure hydrogen storage cylinder developed for proton exchange membrane fuel cell (PEMFC) vehicles
• Core function: provides high-pressure hydrogen storage for fuel cell vehicles, ensuring vehicle range
• Applicable power range: covering passenger vehicles, commercial vehicles, heavy trucks and stationary power stations
• Two product series: Type III (aluminum alloy liner + carbon fiber fully wrapped, 35MPa / 70MPa); Type IV (plastic liner + carbon fiber fully wrapped, 70MPa)
• Type III volume range: 61L~450L (35MPa); 62L/203L (70MPa)
• Type IV volume range: 62L/140L (70MPa)
• Carbon fiber material: domestic T700 grade carbon fiber (SYT49S-24K), fatigue cycles >=11000
• Type IV gravimetric hydrogen density: >=5.5wt%, weight reduced by 20%~30% compared with Type III
• Working temperature: -40C~85C; Service life: 20 years (Type III)
• Fatigue cycles: 15000 (Type III) / >=45000 (Type IV)
• Executive standards: EU standard EC No 79/2009, national standard GB/T 42612-2023 (Type IV)

Description:

In a fuel cell vehicle, the high-pressure hydrogen storage cylinder is the core energy storage component of the whole vehicle, accounting for about 20% of the vehicle cost and being the third-largest value link of a fuel cell vehicle. The performance of the storage cylinder directly determines the vehicle range, load capacity and safety performance. Compared with traditional steel cylinders, carbon fiber fully wrapped storage cylinders have significant advantages such as light weight, high strength, corrosion resistance and long fatigue life.

Type III hydrogen storage cylinder (35MPa / 70MPa): the Type III cylinder uses an aluminum alloy liner + carbon fiber fully wrapped structure, with the following features: mature and reliable (35MPa cylinders are mature and mass-produced, and 70MPa cylinders are in production); complete specifications (35MPa offers 10 specifications from 61L to 450L, 70MPa offers 2 specifications, 62L/203L); light weight (uses domestic T700 grade carbon fiber (SYT49S-24K), lighter than imported T800 grade carbon fiber); high fatigue life (fatigue cycles of more than 11000, breaking through the application of domestic carbon fiber in 70MPa storage cylinders); long service life (designed service life 20 years, fatigue cycles 15000); corrosion resistance (carbon fiber composite has excellent corrosion resistance).

Type IV hydrogen storage cylinder (70MPa): the Type IV cylinder uses an advanced composite structure of plastic liner + carbon fiber fully wrapped, with the following advantages over the Type III cylinder: extremely light weight (under the same gas storage capacity and pressure, weight reduced by 20%~30% compared with Type III); higher hydrogen storage density (gravimetric hydrogen density can reach above 5.5wt%, improving vehicle range); flexible design (non-cylindrical special-shaped cylinders can be manufactured by the winding process to better utilize the vehicle chassis space); hydrogen embrittlement corrosion resistance (the plastic liner avoids the hydrogen embrittlement corrosion problem, offering advantages in long-term use stability and safety life); high fatigue life (fatigue life can reach more than 45000 cycles).

On-board hydrogen supply system: the on-board high-pressure hydrogen supply system consists of storage cylinders, pipe fittings and valves, pressure/temperature sensors and a control system. It adopts overall integrated matching technology with the following features: simplified piping design and development to improve pressure resistance; reduced number of system sleeve and ferrule connection joints to reduce leakage points and improve safety; lightweight on-board high-pressure hydrogen supply system; modular design compatible with fuel cell packs of various vehicle models, convenient for matching and installation; simulation analysis to analyze the influence of inertia force on frame stability during braking, ensuring the overall structure meets the stability requirements under complex road conditions. By installation method, the system can be divided into side-mounted (8x210L), rear-mounted (6x410L) and roof-mounted (7x165L), flexibly configurable according to different vehicle models and installation spaces.

Specifications:

Electrical / Optical Characteristics (Ta=25C +/-3C). See product specification image.

Applications:

This product is widely used in various proton exchange membrane fuel cell (PEMFC) vehicles and hydrogen storage systems, specifically including:

• Hydrogen fuel commercial vehicles (heavy trucks, city buses, logistics vehicles, sanitation vehicles, dump trucks)
• Hydrogen fuel passenger vehicles (sedans, SUVs)
• Stationary fuel cell power stations (backup power, distributed energy systems)
• Hydrogen fuel cell ships
• Hydrogen locomotives (China's first high-power hydrogen-powered shunting locomotive "H2 Dragon No.1" is equipped with Guofu Hydrogen 35MPa Type III storage cylinders)
• Hydrogen forklifts and construction machinery

Company Advantages:

Shanghai Yibaijia Hydrogen Energy Technology Co., Ltd., as a professional hydrogen energy parts supply platform, distributes Type III/IV on-board high-pressure hydrogen storage cylinders and on-board hydrogen supply systems. The Type III cylinder covers a volume of 61L~450L, and the Type IV cylinder uses a plastic liner + carbon fiber fully wrapped structure, reducing weight by 20%~30% compared with Type III. The Shanghai Yibaijia team has more than 10 years of hydrogen energy industry experience and can provide full-process technical support from product selection and system matching to installation and commissioning.

FAQ

Q1: Can you provide samples for testing?
A: Yes, we support sample orders for vehicle installation testing and performance verification, and also accept mixed-model sample orders.

Q2: What is the delivery lead time?
A: Sample orders usually take 5-7 working days; bulk orders (depending on order quantity) generally take 15-30 working days.

Q3: Is there a minimum order quantity (MOQ) limit?
A: There is no strict MOQ limit; 4-piece sample trial orders are supported, and bulk order prices are more favorable.

Q4: Why does a fuel cell vehicle need a high-pressure hydrogen storage cylinder?
A: The high-pressure hydrogen storage cylinder is the energy storage unit of a fuel cell vehicle, responsible for storing and supplying the hydrogen required for the electrochemical reaction of the fuel cell stack. Compressed high-pressure hydrogen is more conducive to the range of commercial vehicles and other models; the performance of the storage cylinder directly determines the range and load capacity of the vehicle.

Q5: What is the difference between a Type III and a Type IV hydrogen storage cylinder?
A: The Type III cylinder uses an aluminum alloy liner + carbon fiber fully wrapped structure with mature technology and high reliability; the Type IV cylinder uses a plastic liner + carbon fiber fully wrapped structure, is lighter (20%~30% lighter than Type III), has higher hydrogen storage density (>=5.5wt%) and can be designed as a special-shaped cylinder to better utilize vehicle space.

Q6: What carbon fiber material is used for the storage cylinder?
A: Domestic T700 grade carbon fiber (SYT49S-24K), which breaks through the limitation that 70MPa storage cylinders must use T800 grade carbon fiber, realizing the application of domestic carbon fiber in 70MPa storage cylinders.

Q7: What parts make up the on-board hydrogen supply system?
A: The on-board hydrogen supply system consists of storage cylinders, pipe fittings and valves, pressure/temperature sensors and a control system. It uses overall integrated matching technology and modular design with the features of lightweight, high safety and easy matching and installation.

Q8: How to handle product failures?
A: We implement a strict quality control system, with an out-of-factory defect rate below 0.2%. During the warranty period, small batches of defective products will be replaced with new ones in the next order; batch quality problems will be negotiated for repair or replacement to ensure customer rights.