In recent years, based on its own catalyst and membrane electrode technology, Gaocheng Green Energy has developed a variety of 75W ~ 7.5kW air-cooled fuel cell stack products and 120kW liquid-cooled fuel cell stack products, and carried out chemical hydrogen production and SPE electrolysis Based on the research of water-to-hydrogen technology, a variety of miniature, portable, stationary and power fuel cell system products have been developed on this basis, which have significant advantages in product completeness, performance, reliability and cost.
01 High-performance fuel cell catalyst development The electrochemical activity of the catalyst largely determines the performance of the fuel cell. The ORR activity, cycle potential durability, high potential durability, and humidity sensitivity of different catalysts are somewhat different. It is essential to develop catalyst matching.
Gaocheng Green Energy has successively developed Pt black, Pt / C and Pt alloy catalyst preparation technology and achieved mass production, and at the same time developed nano oxide preparation technology. These catalyst preparation technologies can be combined with different optimized carriers to form different fuel cell catalyst product series, which can meet the application requirements of air-cooled and liquid-cooled membrane electrodes.
The following is the relevant information of GCCAT-C02 series Pt / C catalysts for fuel cells developed for higher durability and higher activity application scenarios (such as logistics, heavy trucks, power stations and other non-passenger vehicle fields). At present, the catalyst has completed the process Stereotypes, and can be supplied in batches according to market requirements.
â–² Gaocheng Green Energy GCCAT-C02 series fuel cell catalyst product information * Refer to the US DOE electrocatalyst accelerated test specification
02 Development of membrane electrode technology in wide operating range
At present, the parameters of air compressors, circulating pumps, humidifiers and other auxiliary parts supporting fuel cell systems on the market vary widely. Many system developers will spend more energy in the selection and exploration stage. In order to make the selection of system components easier There are many series of membrane electrodes designed by Gaocheng Green Energy based on self-produced catalysts.
At present, the membrane electrode GCMEA-B01 type used in the high-energy green energy liquid-cooled reactor is positioned to have the widest operating range and high durability on the basis of maintaining high performance, and has a certain anti-polarity capability. This electrode adopts 18um-thick proton exchange membrane and GCCAT-C02 series catalysts. At the same time, the catalyst layer formulation and diffusion layer are optimized to ensure the normal operation of the stack in a wider humidity range, reducing the difficulty of system matching .
Assemble the membrane electrode on the stack, and the measured polarization curves under different humidity conditions of the cathode are as follows. Overall, the self-humidification performance is equivalent to the external humidification performance, and the self-humidification performance is slightly better than the external increase under high current density conditions. Wet performance.
â–² GCMEA-B01 electrode measured polarization curve on the stack At present, Gaocheng Green Energy has launched air-cooled and liquid-cooled MEA series products, which can be customized production according to customer requirements.
â–² Gaocheng Green Energy MEA product information
03 The development of high-power fuel cell stacks is based on the understanding of the operating interval of the catalyst and the membrane electrode and a large amount of test data. The high-energy green can use the membrane electrode to maximize its performance under the best conditions while ensuring stability and reliability. The concept is the starting point, taking into account the uniform distribution of fluids and the needs of water and heat management, and designed a variety of air-cooled and liquid-cooled fuel cell stacks. The high-power liquid-cooled fuel cell stack GCSTK-CI01-240A, which was tested at the end of 2019, was developed based on the membrane electrode GCMEA-B01 membrane electrode. It cooperates with conventional machined graphite bipolar plates to maintain the balance of performance and life, and has a large Performance improvement room.
â–² Gaocheng Green Energy GCSTK-CI01-240A stack appearance
▲ Gaocheng Green Energy GSTTK-CI01-240A stack basic information The size of the single-plate polar plate is 424 * 167mm = 70808m², and the thickness of the battery cell is 2.52mm.
â–² Pole plate size and fluid direction At present, the high-yield green energy GSTSK-CI01-240A stack anode and cathode gas adopts counter-current operation, and the cooling fluid flows in the same direction as the cathode gas.
The low humidity area of ​​the air inlet is located on the low temperature side, and can be humidified by the water diffused from the anode end; the high humidity area of ​​the air outlet is located on the high temperature side, corresponding to the low humidity area of ​​the hydrogen inlet, where the water transfer direction is from the cathode to the anode. The design as a whole is conducive to the even distribution of the water content inside the electrode. The reactor also considers the influence of operating conditions on the performance of the stack under different pressure conditions, ensuring the reliability of water and heat management under different operating pressure conditions.
The cathode is operated with dry air. The output power of the stack can reach 77kW under the operating conditions of 25kPa at the cathode inlet, the maximum power at 80kPa at the cathode inlet is 100kW, and the maximum power at 150kPa at the cathode inlet can reach 123kW.
â–² Power operating curves of different operating pressures of the stack At present, this stack is in the stage of small batch production. The next step will be to launch high-power versions and derivative models with different number of slices according to the application scenarios to better meet market demand. The commercialized fuel cell stack of Gaocheng Green Energy has the following five series. The combination of model and number of chips basically achieves full coverage of 75W ~ 120kW power, and can be customized fuel cell system product development according to customer requirements.
â–² Gaocheng Green Energy Commercialized Fuel Cell Stack Series
Introduction of Gaocheng Green Energy Zhejiang Gaocheng Green Energy New Energy Technology Co., Ltd. was established in 2006 and established a fuel cell R & D center in May 2009. The cumulative R & D investment has exceeded 300 million yuan. It is China ’s hydrogen fuel cell technology research and power system research and development. And one of the leaders of industrialization is a national high-tech enterprise with independent innovation core technology.
The company is currently the only military product supplier in the domestic fuel cell industry, and also the only domestic company that has 100% independent intellectual property rights for fuel cell core technology. After more than 10 years of hard work, the company has undertaken a number of major national scientific research projects. At present, it has completed the technical breakthroughs and production research and development of new energy projects such as military-civilian hydrogen fuel cells and has large-scale research and investment capabilities.
AGLEX cob LED Grow Light is very popular, COB 2000W LED Grow Light is most, perfect for 4x4ft. It's daisy chained. If you want to lighting larger area, you could daisy chain 2 2000w, coverage 4x8ft. The 2000W LED Grow Light is with veg and bloom switches, full spectrum for all stages of plants growth. Suggestion veg on only for seedlings vegging. Once into flowering, turn on both veg and bloom on, it will be bring you suprising response. Adavanced technology design, powerful light distribution. The 2000w Full Spectrum LED Grow Light is great for marijuana, herbs, flowers, vegetables.
ADVANCED TECHNOLOGY - Aglex COB Reflector-series Grow Light , equiped with high-precision 90-degree reflectors and reliable COB Tech together, which can make sure 98% light souce can apply to your plants completely, make your plants healthier and happier.
HUMANIZED VEG & BLOOM DESIGN - This grow light veg & bloom switch setting allows you to switch on/off at any time for different growing stage, without unplugging, as well as keep an unnecessary electricity waste. Dasiy chain can help you to connect multiple lights, no worry about a tangled mess of wires.
EFFICIENT COOLING SYSTEM - Large aluminum heat sink and quality big fans cooler running make full spectrum growing lights give off very little heat as well as the LED Grow Light works in quiet, extending a longer service life of your light.
HIGH YIELD WITHIN LESS TIME - Aglex COB LED Grow Light Full Spectrum for indoor plants applies high power 50W COB and double chip LEDs which most closely mimics the natural sunlight and delieveries strong light, creating not only better plants, but reduced growing time and overall cost.
What Do You Get - 2000W COB Grow Light , US Power Cord, Hanging Hook Kit, User Manual, Our 3 years Worry-Free Warranty and Friendly Customer Service.
AGLEX COB Grow Light
Grow Light for Weed, New COB Grow Light, LED Grow Light 1200, High Power COB Grow Light
Shenzhen Ameri Technology Co., Ltd. , https://www.aglexz.com