SDAY New Energy Technology Group is a national high-tech enterprise focusing on the R&D, production and sales of low-temperature adiabatic storage and transportation application equipment. In terms of technology research and development of type IV high-pressure hydrogen storage bottles, the company has undertaken national key research and development topics (optimization design and manufacturing process research of plastic liner carbon fiber wound hydrogen storage bottles), and provincial key projects (hydrogen fuel cell hydrogen supply power components) 2 Item, a relatively complete technical system has been formed in the field of low-temperature insulation equipment manufacturing.
Since its establishment, the company has been focusing on the vehicle-mounted LNG gas supply system industry, and has actively deployed high-pressure gas cylinder research and development and industrialization preparations. The company has invested 600 million yuan in the construction of the "hydrogen energy and CNG gas supply system industrialization construction project."
And It with all major heavy truck manufacturers in China: FAW Jiefang Qingdao, Shaanxi Heavy Duty Truck, Chengdu Dayun, Jining Heavy Duty Truck, Jinan Heavy Duty Truck, Beijing Foton Daimler, Shaanxi Auto Commercial Vehicle and other well-known vehicle manufacturers have established stable cooperative relations. .
High-pressure hydrogen storage cylinders generally include four types of type Ⅰ, type Ⅱ, type Ⅲ and type Ⅳ. Among them, type Ⅳ bottle is a plastic liner, which is fully wound with carbon fiber and has the lightest weight. It is suitable for vehicles. It is the international mainstream technology route. The on-board hydrogen storage method for hydrogen fuel cell commercial vehicles is still type III.
The company has now completed the research and development of IV-type high-pressure hydrogen storage cylinders (plastic liner fiber-wound composite gas cylinders). The product has completed trial production, related certification and product type testing. The production process is being actively optimized to prepare for future commercial production.
The IV-type high-pressure hydrogen storage cylinder developed by SDAY uses polymer plastic as the inner liner, and the outer surface is wrapped with high-strength carbon fiber impregnated with resin. The composite gas cylinder is made by heating and curing. Compared with the type III cylinder whose inner liner is made of aluminum alloy, The type IV bottle being developed by the company has the characteristics of safer, lighter weight, longer fatigue life, low production cost, short cycle and high efficiency, which is in line with the technological development trend of high pressure, light weight and low cost in the industry.
The product indicators of the IV-type high-pressure hydrogen storage cylinder developed by the company have passed the testing and certification of third-party organizations such as the European Union and Canada. The company has invested in the research and development of IV high-pressure hydrogen storage cylinder products since the beginning of 2018, and completed the production of samples in December 2018. The samples were subjected to hydraulic pressure test, air tightness test, normal temperature pressure test (45,000 times), and LBB test. , High and low temperature pressure cycle test, burst test, accelerated stress rupture test, drop test, crack tolerance test, end torque test and other internal tests, and have passed ISO11439-2013 and EU ECE-R-110 certification. The company commissioned a third-party organization, Shenyang Special Equipment Inspection and Research Institute, to carry out environmental tests, fire tests, and gunshot tests on Type IV bottles, and commissioned a Canadian third-party organization, TesTneT Canada Inc., to conduct natural gas cycle tests, penetration tests, etc. The product performance indicators are good. .
In order to promote the industrialization of the IV-type high-pressure hydrogen storage tank vehicle-mounted hydrogen supply system, the company will invest 229 million yuan in the industrialization of hydrogen energy and CNG gas supply system construction projects.
The company's strategic layout in the field of vehicle-mounted hydrogen storage, in addition to enriching the company's product types, adjusting and optimizing the existing product structure, is also optimistic about the future demand and prospects of the vehicle-mounted hydrogen storage bottle market. According to industry estimates, if the number of fuel cell vehicles in 2025 is planned to be 100,000, and the number of gas cylinders for a fuel cell vehicle varies from 3 to 6, the annual demand for hydrogen storage cylinders is about 309,500, 2020-2050 The total scale of China's hydrogen storage bottle market is expected to exceed 300 billion yuan.