Homogeneous intercalated graphene/manganic oxide hybrid fiber electrode assembly by non-liquid-crystal spinning for wearable energy storage

Guoyin Chen ¹Weiming Wang ¹Xin Lu ¹Innocent Tendo Mugaanire ¹Yang Zhang ¹Yulu Ai ¹Kai Hou ¹Benjamin S.Hsiao ²Meifang Zhu¹

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作者信息

1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,2999 North Renmin Road,Shanghai 201620,China
2. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,2999 North Renmin Road,Shanghai 201620,China;Department of Chemistry,Stony Brook University,Stony Brook,NewYork 11794,USA
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Abstract

Reduced graphene oxide(rGO)-based fibers with high electrochemical performance have recently showed great potential in the field of flexible energy storage devices.However,they still suffer from low ca-pacitance due to the severe stacking of graphene sheets.Hybrids with nanofillers are an efficient way to improve the electrochemical performance of rGO fibers.Nevertheless,controlling the distribution of nanoparticles in the matrix is still an enormous challenge due to the strong attraction among these nanoparticles which results into agglomeration.Here,we continually prepared rGO hybrid fibers via non-liquid-crystal spinning,accompanied by chemical reduction.Manganic oxide(MnOx)nanoparticles re-mained well-dispersed in GO dispersion during the continuous spinning of rGO/MnOx hybrid fibers.Re-sults showed that rGO/MnOx-20 hybrid fibers possessed the best capacitance of 123.3 F g-1(87.6 F cm-3)and 97.1 F g-1(68.9 F cm-3)at the current density of 0.2 A g-1,and 0.5 A g-1 respectively.Furthermore,a fiber-shaped all-solid-state supercapacitor assembly from the optimized hybrid fibers demonstrated an energy density of 2.67 mWh cm-3(3.76 mWh g-1)at the power density of 24.76 mWh cm-3(34.89 mWh g-1).These fiber-based devices show great potential for application in the fields of wearable electronics and energy storage devices.

Key words

rGO/MnOx/Well-dispersion/Hybrid fiber/High performance

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基金项目

中央高校基本科研业务费专项(2232021D-05)

国家自然科学基金(51733002)

国家自然科学基金(51803022)

国家自然科学基金(51673038)

Science and Technology Commission of Shanghai Municipality(20JC1414900)

Science and Technology Commission of Shanghai Municipality(20JC1414901)

国家重点研发计划(2016YFA0201702/2016YFA0201700)

Program for Changjiang Scholars and Innovative Research Team in University(IRT16R13)

上海市科委项目(16JC1400700)

Innovation Program of Shanghai Municipal Education Commission(2017-01-07-00-03-E00055)

Fundamental Research Funds for the Central Universities and Graduate Student Innovation Fund of Donghua University(CUSF-DH-D-2020038)

出版年

2022

材料科学技术(英文版)

中国金属学会中国材料研究学会中国科学院金属研究所

材料科学技术(英文版)

CSTPCDCSCDSCI

影响因子：0.657

ISSN：1005-0302

参考文献量40

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