祝贺硕士生宋媛媛关于水系锌离子正极材料的研究论文被Chemical Engineering Journal顺利接收！
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发布时间：2021-11-01
发布时间：2021-11-01
文章标题：祝贺硕士生宋媛媛关于水系锌离子正极材料的研究论文被Chemical Engineering Journal顺利接收！
内容：
宋媛媛同学题为“Binder-Free Flexible Zinc-Ion Batteries: One-Step Potentiostatic Electrodeposition Strategy Derived Ce Doped-MnO2 Cathode”的研究论文被的化工领域知名期刊Chemical Engineering Journal接收，该论文是宋媛媛同学在硕士期间的首篇研究论文。
Abstract： With the development of flexible electronic devices, power sources' higher safety, lighter, and bending ability have been demanded in recent years. While, aqueous zincion batteries (ZIBs) have gained much attention due to their low cost, rich zinc resources, and high safety. Hence, they have been considered the most promising secondary battery in the near future. However, the practical application of aqueous ZIBs is still impeded by the unsatisfied performance of the cathode materials and the complex manufacturing process. Moreover, the electrochemical energy storage process and mechanism of the cathodes at the flexible ZIBs still remain ambiguous and under discussion, which severely limited the development of the ZIBs. Herein, a Ce doped-MnO2 binder-free cathode electrode was prepared via a one-step potentiostatic electrodeposition strategy. A flexible ZIB assembled based on the Ce-MnO2@CC cathode and a homemade gel electrolyte exhibits a high reversible specific capacity (~311 mAh g-1), a significant energy density (370 Wh kg−1), an excellent stability performance, and achieves good electrochemical behavior even under different bending conditions. Furthermore, the energy storage mechanism of the flexible ZIBs with Mn-based oxides cathode was monitored by the in-situ Raman, XRD, SEM, and TEM, revealing the reversible insertion/extraction of Zn2+ and H+ during the charge/discharge process. Moreover, the results also demonstrate that the structural shedding, and dissolution of the MnO2 structure are the major factors in reducing capacity. This research opens up new opportunities for flexible ZIBs in the field of portable and wearable electronics.
