Lithium-ion batteries have quite good portability, but they also have some obvious drawbacks - such as heat dissipation and toxic elements - which limits the development of their applications. However, scientists at the University of Southern California are working on "water-based organic batteries." The new technology is not only low cost, but also environmentally friendly, and is expected to be applied to the energy storage end of wind or solar power.
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The technology developed by the University of Southern California, officially known as the "Organic Redux flow battery," works a bit like a fuel cell.
Similar to the Sun God electric drone developed by NASA (which uses two sets of electrochemical solutions). These solutions react through the film and produce electrical energy.
The research team said that the size of the container can be customized, so the final storage capacity depends on the final size of the tank. In addition, the flow battery has a better life than a lithium-ion battery (and its variants).
Sri Narayan, a professor of chemistry at the University of Southern California's College of Arts and Sciences, said: "The new battery can achieve 5,000 cycles of charging and is expected to last for 15 years. In contrast, lithium-ion batteries have only about 1000 cycles of service life, and manufacturing costs. It is more than 10 times that of the flow battery."
The key to this "organic reflux cell" is the electroactive material it uses - it does not use metals or other toxic substances, but organic compounds.
Through trial and error, researchers have been able to develop quinones based on oxidized organic compounds.
It is widely found in plants, fungi and bacteria, in certain animals, and in photosynthesis and cellular respiratory tissues. The research team believes that the technology will one day achieve an environmentally-friendly and cost-effective "super-large" battery library.
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