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LiAlTi(PO4)3 Used as Solid Electrolyte for All-Solid Structural Supercapacitors

Liao, Guangyue and Geier, Sebastian and Mahrholz, Thorsten and Wierach, Peter and Wiedemann, Martin (2015) LiAlTi(PO4)3 Used as Solid Electrolyte for All-Solid Structural Supercapacitors. In: Proceedings of the ASME Conference on Smart Materials, Adpative Structures and Intelligent Systems (SMART2015). ASME. ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015, 21.-23. September 2015, Colorado Springs, Colorado, USA. (In Press)

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Abstract

Structural supercapacitors are very interesting multifunctional devices combining the properties of an electrical energy storage device and a structural component simultaneously. These types of supercapacitors are mostly equipped with solid state electrolytes, instead of traditional liquid electrolytes, avoiding leakage problems and supporting the mechanical performance of the composite materials. In the present study, the Lithium-ion based solid ceramic electrolyte Li1.4Al1.6Ti0.4(PO4)3 was successfully synthesized by sol-gel method. Its electrical properties were characterized by electrochemical impedance spectroscopy (EIS) and cyclic voltammetry (CV). Results show that Li1.4Al1.6Ti0.4(PO4)3 possesses a conductivity of 2.94×10-4 S/cm at room temperature and a specific capacity of 55.57 µF/g. The as-prepared samples were embedded into fiber composite material using the aviation approved resin RTM6 by an injection process, which served as a capsule for supercapacitor and made the composite structure flexible. Subsequently, the capacity and conductivity were tested getting values of 53.44µF/g and 2.00×10-4 S/cm respectively. The reason for electrical properties loss was investigated by computerized tomography (CT) and EIS tests and the results provide reference for the future research. Keywords: Multifunctional composite; Structural capacitor; Lithium-ion solid electrolytes; Electrical energy storage

Item URL in elib:https://elib.dlr.de/102093/
Document Type:Conference or Workshop Item (Speech)
Title:LiAlTi(PO4)3 Used as Solid Electrolyte for All-Solid Structural Supercapacitors
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Liao, GuangyueGuangyue.Liao (at) dlr.deUNSPECIFIED
Geier, SebastianSebastian.Geier (at) dlr.deUNSPECIFIED
Mahrholz, ThorstenThorsten.Mahrholz (at) dlr.deUNSPECIFIED
Wierach, Peterpeter.wierach (at) dlr.deUNSPECIFIED
Wiedemann, Martinmartin.wiedemann (at) dlr.deUNSPECIFIED
Date:21 September 2015
Journal or Publication Title:Proceedings of the ASME Conference on Smart Materials, Adpative Structures and Intelligent Systems (SMART2015)
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
Smith, RalphNorth Carolina State University
Philen, MichaelVirgina Tech
Publisher:ASME
Status:In Press
Keywords:structural energy storage, structure integrated energy storage, solid electrolyte, super capacitor, Li-based capacitor;
Event Title:ASME 2015 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2015
Event Location:Colorado Springs, Colorado, USA
Event Type:international Conference
Event Dates:21.-23. September 2015
Organizer:ASME (American Society of Mechanical Engineering)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Research under Space Conditions
DLR - Research area:Raumfahrt
DLR - Program:R FR - Forschung unter Weltraumbedingungen
DLR - Research theme (Project):R - Vorhaben Materialwissenschaftliche Forschung (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems
Deposited By: Geier, Sebastian
Deposited On:14 Jan 2016 12:42
Last Modified:10 May 2016 23:42

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