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Researchers at Fudan University in China said on the 22nd that they have designed a concept-friendly low-toxic rechargeable battery that can be quickly charged, and that it is expected to be used in energy storage such as wind power and solar power generation as well as peak-to-ground charging of smart grids.
This achievement was published in a new issue of the American Journal of Scientific Progress. Wang Yonggang, an associate professor at Fudan University, told Xinhua News Agency reporters that the electrode materials or electrolytes of existing commercial batteries contain environmentally unfriendly and even toxic substances. Therefore, they focused on selecting low toxicity and environmental protection in their design. Electrode material and electrolyte.
The battery positive electrode designed by Wang Yonggang et al. is a neutral aqueous solution containing iodide ions, the negative electrode is a solid organic polymer polyimide electrode, and the electrolyte is a neutral aqueous solution containing lithium ions or sodium ions.
Wang Yonggang said that compared with existing batteries, the battery is less harmful to the environment. Since both the positive and negative electrodes of conventional rechargeable batteries are solid, the positive and negative electrodes of traditional flow batteries are liquid solutions, so this is a new type of battery system between traditional rechargeable batteries and conventional flow batteries.
The battery also has the characteristics of high work efficiency, high charge and discharge speed, long cycle life and high safety. Under high current charging and discharging conditions, the battery can be recycled 50,000 times.
However, Wang Yonggang also stated that the disadvantage of this battery is its limited energy density. Therefore, it is only suitable for the storage of large-scale energy storage devices, such as wind energy and solar energy, and is not applicable to existing mobile electronic devices such as mobile phones and laptops. , electric cars, etc.
He also stated that the battery is still in the conceptual academic research stage and there is still a long distance from the actual application. In the future, this battery needs further academic and technological research. (Reporter Lin Xiaochun)
Chloride, Salt
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