In-situ oriented oxygen-defect-rich Mn-N-O via nitridation and electrochemical oxidation based on industrial-scale Mn_(2)O_(3) to achieve high-performance aqueous zinc ion battery  

作　　者：Yao Liu Shuailong Guo Wei Ling Mangwei Cui Hao Lei Jiaqi Wang Wenzheng Li Qingjiang Liu Lukuan Cheng Yan Huang 

机构地区：[1]Sauvage Laboratory for Smart Materials,School of Materials Science and Engineering,Harbin Institute of Technology,Shenzhen 518055,Guangdong,China [2]Shenzhen Key Laboratory of Flexible Printed Electronics Technology,Harbin Institute of Technology,Shenzhen 518055,Guangdong,China [3]State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,Heilongjiang,China

出　　处：《Journal of Energy Chemistry》2023年第1期11-18,I0001,共9页能源化学（英文版）

基　　金：supports from the National Natural Science Foundation of China(No.21805063);the Natural Science Foundation of Guangdong Province for Distinguished Young Scholars(No.2018B030306022);the Project of International Science and Technology Cooperation in Guangdong Province(No.2020A0505100016);the Shenzhen Sauvage Nobel Laureate Laboratory for Smart Materials;the Shenzhen Science and Technology Program(Nos.KQTD20200820113045083,ZDSYS20190902093220279)。

摘　　要：As a general problem in the field of batteries,materials produced on a large industrial scale usually possess unsatisfactory electrochemical performances.Among them,manganese-based aqueous rechargeable zinc-ion batteries(ARZBs)have been emerging as promising large-scale energy storage systems owing to their high energy densities,low manufacturing cost and intrinsic high safety.However,the direct application of industrial-scale Mn2O3(MO)cathode exhibits poor electrochemical performance especially at high current rates.Herein,a highly reversible Mn-based cathode is developed from the industrial-scale MO by nitridation and following electrochemical oxidation,which triples the ion diffusion rate and greatly promotes the charge transfer.Notably,the cathode delivers a capacity of 161 m Ah g^(-1) at a high current density of 10 A g^(-1),nearly-three times the capacity of pristine MO(60 m Ah g^(-1)).Impressive specific capacity(243.4 m Ah g^(-1))is obtained without Mn^(2+) additive added in the electrolyte,much superior to the pristine MO(124.5 m Ah g^(-1)),suggesting its enhanced reaction kinetics and structural stability.In addition,it possesses an outstanding energy output of 368.4 Wh kg^(-1) at 387.8 W kg^(-1),which exceeds many of reported cathodes in ARZBs,providing new opportunities for the large-scale application of highperformance and low-cost ARZBs.

关 键 词：Aqueous rechargeable zinc-ion battery Mn-based cathode Oxygen defect NITRIDATION Electrochemical oxidation 

分 类 号：TM912[电气工程—电力电子与电力传动]