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Investigation of Interfacial Condition for Li1,4Al0,6Ti1,4(P04)3 Solid Electrolyte based Multifunctional Energy Storage Device

Liao, Guangyue and Geier, Sebastian and Mahrholz, Thorsten and Wierach, Peter and Wiedemann, Martin (2017) Investigation of Interfacial Condition for Li1,4Al0,6Ti1,4(P04)3 Solid Electrolyte based Multifunctional Energy Storage Device. In: Proceedings of the SMART2017. SMART 2017 8th Thematical Conference on Smart Structures and Materials, 05-07.06.2017, Madrid, Spanien.

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Abstract

In the present research, a multifunctional composite is manufactured which is based on the mechanism of supercapacitor by using Li1.4Al0.4Ti1.6(PO4)3 (LATP) ionic conductor as solid electrolyte. This device could store electrical energy, meanwhile bearing the mechanical loads. The LATP solid electrolyte is sintered and both round surfaces of the pellet are sputtered with gold in 90nm of thickness. Then, samples are embedded into composite systems by using RTM-6 as resin matrix. The capacitances of the sample before and after embedding are measured by cyclic voltammetry method. The results show a significant decrease of capacitance after embedding process. The reasons for this are systematically investigated by different methods, for example, electrochemical impedance spectroscopy, scanning electron microscopy and energy-dispersive X-ray spectroscopy. Different sputter methods are used for preparing the electrodes. Using various resins the impact of different thermal expansion coefficients and curing temperatures on the capacity is also investigated. The results indicate that the decrease should mainly come from the degradation of interfaces between LATP, sputtered gold layer and electrical collector. Finally, magnetron sputtering shows an obvious advantage in comparison to common deposition sputter methods, because the former one results in a stronger adhesion between sputtered metal layer and LATP pellet surface.

Item URL in elib:https://elib.dlr.de/114395/
Document Type:Conference or Workshop Item (Speech)
Title:Investigation of Interfacial Condition for Li1,4Al0,6Ti1,4(P04)3 Solid Electrolyte based Multifunctional Energy Storage Device
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Liao, Guangyueguangyue.liao (at) dlr.deUNSPECIFIED
Geier, Sebastiansebastian.geier (at) dlr.dehttps://orcid.org/0000-0001-7941-3630
Mahrholz, Thorstenthorsten.mahrholz (at) dlr.deUNSPECIFIED
Wierach, Peterpeter.wierach (at) dlr.deUNSPECIFIED
Wiedemann, Martinmartin.wiedemann (at) dlr.deUNSPECIFIED
Date:June 2017
Journal or Publication Title:Proceedings of the SMART2017
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Status:Published
Keywords:Multifunctional composite, supercapacitor, interfacial condition, electrical properties.
Event Title:SMART 2017 8th Thematical Conference on Smart Structures and Materials
Event Location:Madrid, Spanien
Event Type:international Conference
Event Dates:05-07.06.2017
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Peakpower Superkondensatoren (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Geier, Sebastian
Deposited On:09 Oct 2017 07:50
Last Modified:05 Mar 2018 09:48

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