Development of structural supercapacitors with epoxy based adhesive polymer electrolyte

Yuchen Wang; Xiaoyao Qiao; Chen Zhang; Xiangyang Zhou

doi:10.1016/j.est.2019.100968

Development of structural supercapacitors with epoxy based adhesive polymer electrolyte

Yuchen Wang, Xiaoyao Qiao, Chen Zhang, Xiangyang Zhou

Mechanical & Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

Epoxy based adhesive polymer electrolyte was prepared using polyvinylidene fluoride, lithium triflate, and epoxy. The effect of the composition of the adhesive polymer electrolyte on the ionic conductivity, viscosity, and tension strength was investigated. The ionic conductivity of an adhesive polymer electrolyte could reach the order of magnitude of 10⁻² S cm⁻¹. Structural supercapacitors with epoxy based adhesive polymer electrolyte were fabricated using a vacuum bagging method. The structural supercapacitors showed excellent electrochemical performance and acceptable mechanical strength simultaneously. The maximum specific energy was 2.64 Wh kg⁻¹ and the ultimate tensile strength was 80 MPa. The capacitance retention of the structural SC was 84% and the columbic efficiency was above 95% after 5000 cycles. The response of electrochemical performance of the structural supercapacitors to in-plane tensile stress was studied. Before fracture, both the specific power and the specific energy increased slightly with increasing the stress level.

Original language	English (US)
Article number	100968
Journal	Journal of Energy Storage
Volume	26
DOIs	https://doi.org/10.1016/j.est.2019.100968
State	Published - Dec 2019

Keywords

Epoxy
In-situ electrochemical performance
Structural supercapacitor
Tension test

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Development of structural supercapacitors with epoxy based adhesive polymer electrolyte",

abstract = "Epoxy based adhesive polymer electrolyte was prepared using polyvinylidene fluoride, lithium triflate, and epoxy. The effect of the composition of the adhesive polymer electrolyte on the ionic conductivity, viscosity, and tension strength was investigated. The ionic conductivity of an adhesive polymer electrolyte could reach the order of magnitude of 10−2 S cm−1. Structural supercapacitors with epoxy based adhesive polymer electrolyte were fabricated using a vacuum bagging method. The structural supercapacitors showed excellent electrochemical performance and acceptable mechanical strength simultaneously. The maximum specific energy was 2.64 Wh kg−1 and the ultimate tensile strength was 80 MPa. The capacitance retention of the structural SC was 84% and the columbic efficiency was above 95% after 5000 cycles. The response of electrochemical performance of the structural supercapacitors to in-plane tensile stress was studied. Before fracture, both the specific power and the specific energy increased slightly with increasing the stress level.",

keywords = "Epoxy, In-situ electrochemical performance, Structural supercapacitor, Tension test",

author = "Yuchen Wang and Xiaoyao Qiao and Chen Zhang and Xiangyang Zhou",

note = "Funding Information: The authors thank Emil Buehler Foundation and NASA ( NNK12LA12C SUB01 ) for partial financial support. The authors also thank Dr. Luke Roberson of NASA KSC and Mr. Daniel Martinez of Department of Mechanical and Aerospace Engineering for introducing the vacuum bagging method. ",

year = "2019",

month = dec,

doi = "10.1016/j.est.2019.100968",

language = "English (US)",

volume = "26",

journal = "Journal of Energy Storage",

issn = "2352-152X",

publisher = "Elsevier BV",

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TY - JOUR

T1 - Development of structural supercapacitors with epoxy based adhesive polymer electrolyte

AU - Wang, Yuchen

AU - Qiao, Xiaoyao

AU - Zhang, Chen

AU - Zhou, Xiangyang

N1 - Funding Information: The authors thank Emil Buehler Foundation and NASA ( NNK12LA12C SUB01 ) for partial financial support. The authors also thank Dr. Luke Roberson of NASA KSC and Mr. Daniel Martinez of Department of Mechanical and Aerospace Engineering for introducing the vacuum bagging method.

PY - 2019/12

Y1 - 2019/12

N2 - Epoxy based adhesive polymer electrolyte was prepared using polyvinylidene fluoride, lithium triflate, and epoxy. The effect of the composition of the adhesive polymer electrolyte on the ionic conductivity, viscosity, and tension strength was investigated. The ionic conductivity of an adhesive polymer electrolyte could reach the order of magnitude of 10−2 S cm−1. Structural supercapacitors with epoxy based adhesive polymer electrolyte were fabricated using a vacuum bagging method. The structural supercapacitors showed excellent electrochemical performance and acceptable mechanical strength simultaneously. The maximum specific energy was 2.64 Wh kg−1 and the ultimate tensile strength was 80 MPa. The capacitance retention of the structural SC was 84% and the columbic efficiency was above 95% after 5000 cycles. The response of electrochemical performance of the structural supercapacitors to in-plane tensile stress was studied. Before fracture, both the specific power and the specific energy increased slightly with increasing the stress level.

AB - Epoxy based adhesive polymer electrolyte was prepared using polyvinylidene fluoride, lithium triflate, and epoxy. The effect of the composition of the adhesive polymer electrolyte on the ionic conductivity, viscosity, and tension strength was investigated. The ionic conductivity of an adhesive polymer electrolyte could reach the order of magnitude of 10−2 S cm−1. Structural supercapacitors with epoxy based adhesive polymer electrolyte were fabricated using a vacuum bagging method. The structural supercapacitors showed excellent electrochemical performance and acceptable mechanical strength simultaneously. The maximum specific energy was 2.64 Wh kg−1 and the ultimate tensile strength was 80 MPa. The capacitance retention of the structural SC was 84% and the columbic efficiency was above 95% after 5000 cycles. The response of electrochemical performance of the structural supercapacitors to in-plane tensile stress was studied. Before fracture, both the specific power and the specific energy increased slightly with increasing the stress level.

KW - Epoxy

KW - In-situ electrochemical performance

KW - Structural supercapacitor

KW - Tension test

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