Carbon nanotubes CNT/SWCNT/MWCNT/DWCNT used in battery materials
Applications of carbon nanotubes:
1. Carbon materials have huge reserves, carbon nanotubes have good conductivity and high light absorption rate, and are particularly suitable for the production of solar cells. Most solar cells are made of silicon, and the photoelectric conversion rate is between 10% and 30%. This ratio is not bad, but the price of silicon is very expensive.
2. Carbon nanotubes were first used as transparent electrodes in polymer solar cells to replace traditional indium tin oxide conductive films. Carbon nanotube films have good light resistance, chemical stability and flexibility.
3. Carbon nanotubes in dye-sensitized solar cells can be improved to increase the thickness of their transparent conductive films. Nanotubes also have the function of promoting the adsorption of sensitizers due to their high specific surface area. Adding multi-walled carbon nanotubes to TiO2 films can increase the roughness of TiO2 films by 1.5 times, thereby adsorbing more sensitizers.
4. Carbon nanotubes have the functions of transparent conductive electrodes in solar cells, assisting charge separation, collection and transmission of charges.
5. Carbon nanotubes are tubular nanomaterials formed by curling single-dimensional or multi-dimensional graphite. They have many excellent physical and chemical properties. Their unique electronic conductivity makes them attractive for human application in lithium-ion battery conductive agents.
6. As a new type of fibrous carbon nanotube conductive agent, it has a complete three-dimensional conductive network. Compared with traditional conductive agents such as conductive carbon black, carbon nanotubes have higher electronic conductivity and relatively low dosage, which is conducive to improving battery performance capacity and battery cycle life, especially to improving battery charge and discharge rate performance.
7. It has a unique structure, suitable specific surface area, low resistance, high stability and characteristics that are compatible with the inner diameter of its adsorbed molecules. It has good application prospects in fuel cell catalyst carriers.
8. With the unique structure, suitable surface area, low resistance and high stability of carbon nanotubes, it is widely used in fuel cell catalysts and is superior to activated carbon or carbon black catalyst carriers.
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