AgxMn8O16 Cathode Enables High-Performance Aqueous Li-Ion Hybrid Supercapacitors

被引：6
作者：
Hao, Chongyang [1 ]
Chen, Lina [2 ]
Zhang, Yamin [1 ]
Zheng, Xiaowen [1 ]
Li, Shanshan [1 ]
Min, Guanghui [1 ]
Ci, Lijie [1 ,2 ]
机构：
[1] Shandong Univ, Res Ctr Carbon Nanomat, Key Lab Liquid Solid Struct Evolut & Proc Mat, Minist Educ,Sch Mat Sci & Engn, Jinan 250061, Shandong, Peoples R China
[2] Harbin Inst Technol Shenzhen, Sch Mat Sci & Engn, Shenzhen 518055, Guangdong, Peoples R China
来源：
ENERGY & FUELS | 2021年 / 35卷 / 18期
基金：
中国国家自然科学基金; 中国博士后科学基金;
关键词：
ELECTRODES; DESIGN; ALPHA-MNO2; COMPOSITE; GRAPHENE; CARBON;
D O I：
10.1021/acs.energyfuels.1c01771
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
As an energy storage device with high energy density and power density simultaneously, hybrid supercapacitors (HSCs) have attracted more and more attention. The electrochemical performance of electrode material has a decisive effect on hybrid devices. To develop excellent faradaic electrode material for aqueous hybrid Li-ion HSCs, the silver ion pre-embedded manganese oxide materials (marked as AMO) are successfully synthesized by a high-temperature solid-phase method. In comparison to MnO2, the specific capacitance of AMO-400 is greatly improved from 246.0 to 326.1 F g(-1) at 0.5 mV s-(1.) When matched with activated carbon to assemble the Li-ion HSCs with the widened voltage window of 0-2.1 V, the highest power density of 3211.0 W kg(-1) and energy density of 111.0 Wh kg(-1) are obtained.
引用
收藏
页码：15101 / 15107
页数：7
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