Constructing high-capacity and flexible aqueous zinc-ion batteries with air-recharging capability using organic cathodes  

作　　者：Xiaojuan Chen Haoqi Su Baozhu Yang Xiaocen Liu Xiuting Song Lixin Su Gui Yin Qi Liu 

机构地区：[1]Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology,Advanced Catalysis Green Manufacturing Collaborative Innovation Center and School of Petrochemical Engineering,Changzhou University,Changzhou 213164,China [2]State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing 210093,China

出　　处：《Chinese Chemical Letters》2024年第3期468-472,共5页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.21975034);the Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions;the Research Project of State Key Laboratory of Coordination Chemistry。

摘　　要：Flexible aqueous zinc-ion batteries(AZIBs)with air-recharging capability are a promising self-powered system applied in future wearable electronics.It is desired to develop high-capacity air-rechargeable AZIBs.Herein,we developed a flexible AZIB with air-recharging capability based on trinitrohexaazatrinaphthylene(TNHATN)cathode and a ZnSO_(4)electrolyte.The flexible Zn//TNHATN battery exhibits high volumetric energy density(21.36 mWh/cm^3)and excellent mechanical flexibility.Impressing,the discharged flexible Zn//TNHATN battery can be chemical self-charged via the redox reaction between TNHATN cathode and O_(2)from the air.After oxidation in air for 15 h,such flexible Zn//TNHATN battery can deliver a high specific capacity of 320 mAh/g at 0.5 A/g,displaying excellent air-recharging capability.Notably,this flexible Zn//TNHATN battery also works well in chemical or/and galvanostatic charging mixed modes,showing reusability.This work provides a new insight for designing flexible aqueous self-powered systems.

关 键 词：Aqueous zinc-ion battery Trinitrohexaazatrinaphthylene Organic cathode materials Flexible air-rechargeable battery Self-powered system 

分 类 号：TM912[电气工程—电力电子与电力传动]