Pure Aqueous Planar Microsupercapacitors with Ultrahigh Energy Density under Wide Temperature Ranges

Li Song; Chunlong Dai; Xuting JinYukun XiaoYuyang HanYing WangXinqun ZhangXiangyang LiShaohua ZhangJiatao ZhangYang ZhaoZhipan ZhangLiangti Qu

首页> 外文期刊>Advanced functional materials >Pure Aqueous Planar Microsupercapacitors with Ultrahigh Energy Density under Wide Temperature Ranges

【24h】

Pure Aqueous Planar Microsupercapacitors with Ultrahigh Energy Density under Wide Temperature Ranges

机译：Pure Aqueous Planar Microsupercapacitors with Ultrahigh Energy Density under Wide Temperature Ranges

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Currently, limited by factors such as low working voltage (≤1 V), poor temperaturetolerance, and underutilization of electrolytes, pure aqueous symmetricplanar microsupercapacitors (PMSCs) show unsatisfactory energy densityunder wide temperature ranges. To address these issues, a novel strategyis introduced to construct pure aqueous PMSCs with an ultrahigh energydensity under wide temperature ranges through the development of highperformancecarbon nanotube-MnO_2 microelectrodes and high-voltageaqueous polyacrylamide polyelectrolyte with exceptional temperature toleranceand redox-enhanced function. Notably, the capacitance contribution ofalizarin red S redox additives and the outstanding ability to withstand highvoltage of polyacrylamide polyelectrolyte play the crucial roles in improvingthe electrochemical performance of PMSCs. As a result, the constructedmicrodevice achieves a record-high working voltage of 2 V at temperaturesfrom ?15 ℃ to 100 ℃ and ultrahigh areal energy densities of 12.9 μWh cm~(–2)at ?15 ℃, 17.4 μWh cm–2 at room temperature and 24 μWh cm~(–2) at 100 ℃,which are superior to those of previously reported pure aqueous PMSCsat the temperature. Meanwhile, it also shows good flexibility and excellentcycling stability (92.7% after 25 000 cycles at ?15 ℃ and 81% after20 000 cycles at 100 ℃).

著录项

来源
《Advanced functional materials》 |2022年第30期|2203270.1-2203270.12|共12页
作者
Li Song; Chunlong Dai; Xuting JinYukun XiaoYuyang HanYing WangXinqun ZhangXiangyang LiShaohua ZhangJiatao ZhangYang ZhaoZhipan ZhangLiangti Qu;
展开▼
作者单位

Key Laboratory of Cluster ScienceMinistry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081, P. R. China;

Key Laboratory of Cluster ScienceMinistry of Education of ChinaKey Laboratory of Photoelectronic/Electrophotonic Conversion MaterialsSchool of Chemistry and Chemical EngineeringBeijing Institute of TechnologyBeijing 100081, P. R. China,School of Materials;

Key Lab of Organic Optoelectronics and Molecular Engineeringof Ministry of EducationDepartment of ChemistryTsinghua UniversityBeijing 100084, P. R. China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
high energy density; pure aqueous microsupercapacitors; redoxenhanced function; wide temperature ranges;

Pure Aqueous Planar Microsupercapacitors with Ultrahigh Energy Density under Wide Temperature Ranges

摘要

著录项

相关主题

期刊订阅