Alloxazine as anode material for high-performance aqueous ammonium-ion battery  

作　　者：Yuan Ma Tianjiang Sun Qingshun Nian Shibing Zheng Tao Ma Qiaoran Wang Haihui Du Zhanliang Tao 

机构地区：[1]Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Renewable Energy Conversion and Storage Center,College of Chemistry,Nankai University,Tianjin 300071,China [2]Hefei National Laboratory for Physical Science at the Microscale,CAS Key Laboratory of Materials for Energy Conversion,Department of Materials Science and Engineering,University of Science and Technology of China,Hefei 230026,China

出　　处：《Nano Research》2022年第3期2047-2051,共5页纳米研究（英文版）

基　　金：the National Natural Science Foundation of China(Nos.51771094 and 21835004);Ministry of Education of China(Nos.B12015 and IRT13R30);Tianjin Natural Science Foundation(No.18JCZDJC31500).

摘　　要：Aqueous ammonium-ion battery(AAIB)has attracted much attention due to its low cost,safety,and environmental friendliness,but its electrode materials have many limitations.Here,alloxazine(ALO)is introduced as the anode for the AAIB.With its pseudocapacitive effect and fast diffusion kinetics of NH4+,ALO anode shows excellent rate performance with a specific capacity of 120 mAh/g at 40 C(10 A/g).The full battery is further fabricated by ALO anode and Prussian white analogs cathode.Its specific capacity can reach 110 mAh/g and it can work up to 10,000 cycles with no obvious capacity fading at 20 C(5 A/g).In addition,the system delivers a high energy density of 122.5 Wh/kg and a power density of 5,055 W/kg.This work broadens the application prospect of the AAIB.

关 键 词：aqueous ammonium-ion battery alloxazine anode material pseudocapacitive effect 

分 类 号：TM912[电气工程—电力电子与电力传动]