Recently, the research team led by Li Xianfeng and Zhang Huamin, researchers at the Energy Storage Technology Research Department of the Dalian Institute of Chemical Physics, Chinese Academy of Sciences, have made new progress in the research of alkaline zinc-iron flow batteries. The relevant research results were published in Nature Communications )on.
Energy storage technology is a key core technology of distributed energy systems. In recent years, the alkaline zinc-iron flow battery energy storage technology developed by the research team has the characteristics of low cost, high safety, high open circuit voltage and environmental friendliness, and has a good application prospect in the field of distributed energy storage. Nevertheless, the alkaline zinc-iron flow battery is accompanied by problems of zinc dendrites and zinc accumulation during the charge and discharge cycles, which affects the reliability of the battery. Therefore, solving the problems of zinc dendrites and zinc accumulation and improving the reliability of the battery are the keys to the practical application of alkaline zinc-iron flow batteries.
In order to solve the above problems, the research team introduced a negatively charged porous ion conductive membrane into an alkaline zinc-iron flow battery based on a profound understanding of the ion conductive membrane (Chem. Soc. Rev.). Using the negative charge of Zn (OH) 42-ions in the ion-conducting membrane, the zinc deposition direction of the alkaline zinc-iron flow battery is changed from the ion-conducting membrane to the electrode side during the charging process, avoiding zinc branches The crystal causes damage to the separator, greatly improving the cycle stability of the battery. In addition, this design can significantly increase the surface capacity of the zinc-based flow battery, and to a certain extent solves the problem of the limited capacity of the zinc anode surface of the traditional zinc-based flow battery. The research results have important reference significance for the regulation of zinc anodes in zinc-based batteries.
The above research work was funded by the National Natural Science Foundation of China and the Frontier Key Projects of the Chinese Academy of Sciences.
Adult Disposable Medical Masks
3 Ply Face Masks,Fold Flat Face Mask,Adult Disposable Masks,Dust Mouth Face Mask
Henan Diyi Medical Technology Development Co.,Ltd. , https://www.diyimedical.com