PVDF-HFP binder for advanced zinc−manganese batteries

作     者：Shu-ci MA Xiao-dong SHI Zhe-xuan LIU Yi-fan ZHOU Pin-ji WANG Jiang ZHOU Shu-quan LIANG 马书辞;史晓东;刘哲轩;周一帆;王品基;周江;梁叔全

作者机构：Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsSchool of Materials Science and EngineeringCentral South UniversityChangsha 410083China 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2022年第32卷第9期

页      面：3005-3014页

核心收录：

学科分类：081702[工学-化学工艺] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 

基　　金：supported by the National Natural Science Foundation of China (Nos.51932011, 51972346) the Hunan Natural Science Fund for Distinguished Young Scholar, China (No. 2021JJ10064) the Program of Youth Talent Support for Hunan Province, China (No. 2020RC3011) the Innovation-Driven Project of Central South University, China (No. 2020CX024) 

主　　题：aqueous zinc−manganese batteries binders PVDF-HFP cycling stability 

摘      要：In order to optimize and select the appropriate binder to improve the electrochemical performance of aqueous zinc-manganese batteries,the influences of water-soluble binders and oil-based binders on the zinc storage performance of manganese-based cathode materials were systematically *** results show that the water-soluble binders with large numbers of hydroxyl and carboxyl groups are easily soluble in aqueous electrolytes,leading to poor electrochemical ***,the cathodes with polyvinylidene fluoride-hexafluoropropylene(PVDF-HFP)binder display high specific capacity of 264.9 mA·h/g and good capacity retention of 92%after 90 cycles at 100 mA/***,PVDF-HFP binder with plenty of hydrophobic groups presents excellent ability in inhibiting cracks on the surface of electrode,reducing voltage polarization and charge transfer resistance,as well as maintaining electrode integrity.