China has successfully developed high-performance hydrogen fuel cells! Has Japan's hydrogen energy fallen off the altar?-The function of multi-walled carbon nanotubes
Recently, Chinese scientists have successfully developed a high-performance hydrogen fuel cell with a volumetric power density nearly twice that of existing technology. This breakthrough will help promote the application of hydrogen fuel cells in transportation, energy storage, and other fields and also provide new impetus for China's competitiveness in the "new energy" field.
The hydrogen storage material is a carbon nanotube that Tsinghua University's carbon nanomaterials research team recently discovered has significant hydrogen storage performance after treatment. It is expected to become a new clean energy source - a manufacturing material for hydrogen energy batteries. This technology can be used to manufacture fuel cells to serve as a continuous and stable source of hydrogen. A gas cell is a power generation gadget that continuously converts chemical energy in fuel directly into electrical energy through electrical reactions without combustion. Among them, the proton exchange membrane fuel cell (PEMFC) uses pure hydrogen as fuel. It has the advantages of low operating temperature, high output power, small size, lightweight, and "zero emissions," and is especially suitable for transportation.
1. Background
A hydrogen fuel cell is a device that produces electricity based on the chemical reaction of hydrogen and oxygen. It has the qualities of environmental management, high performance, and safety and has become one of the important choices in the future energy field. However, due to the current low volume power density of hydrogen fuel cells, their applications in certain fields, such as automobiles, aerospace, and others, are limited reform; improving the volumetric power density of hydrogen fuel cells is an important direction of current research.
2. Development and characteristics of high-performance hydrogen fuel cells
The Dalian Institute of Chemical Physics, the Chinese Academy of Sciences, and other institutions jointly developed the high-performance hydrogen fuel cell. This battery uses a new type of bar-based catalyst. Its unique structure and composition enable the battery's volumetric power density to increase to 1,650 milliwatts/cubic centimeter, nearly twice as high as the existing technology. At the same time, this battery is also efficient and stable and can meet the needs of various application scenarios.
3. Application prospects
The successful research and development of high-performance hydrogen fuel cells in energy storage and other fields will help promote using hydrogen fuel cells in transportation. Hydrogen fuel cell vehicles have the benefits of zero emissions and long cruising range and are the future development of automobiles. One of the important directions. Countries worldwide are vigorously promoting the research and application of hydrogen energy vehicles. In the field of energy storage, hydrogen fuel cells can be used as a new energy storage method that can effectively solve the limitations of traditional energy storage.
4. The most representative applications of multi-walled carbon nanotubes are hydrogen storage materials and super nano carbon cellulose batteries.
Super nano carbon cell battery is the latest green energy source that Chinese and American scientists have spent ten years investing in a large workforce, material resources, and the latest technology to develop new materials and technologies. It is light in weight, only 1/10 of that of lead-acid batteries , the volume is only 1/16 of the ordinary battery, and the energy is amazing. The surface area of each gram of nano carbon fiber battery is 2000M grams. Each nanomaterial is 10~30nm and 150mm in length. It produces light, sound and electricity. The energy conductivity that is difficult to produce with general molecular-level materials is close to 0, unmatched by any traditional battery. This product has the characteristics of fast charging and burst power. The weight-specific energy can be between 170Wh/kg~230Wh/kg, and the volume-specific energy can be between 500W~1000W/L. The charge and discharge can be up to 1000 times or more, with a lifespan of up to 10 years. The price is only half of that of a regular battery. It is broadly used in electric vehicles, submarines, electric locomotives, and other electric power machinery that require large energy storage and lightweight. Its introduction is a revolution in superconducting and energy storage science, opening up new avenues for researching higher-performance electrochemical supercapacitors.
5. Multi-walled carbon nanotubes
Carbon nanotubes, also known as Bucky tubes, were discovered by Japanese scientists in 1991. They are a one-dimensional quantum material with a radial size of nanometers and an axial size of microns. Both ends of the tube are sealed. Compared with other nanomaterials, it has a unique structure and properties and is called the "King of Nanomaterials."
6. High quality multi-walled carbon nanotubes supplier
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