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Article

Investigating the Interface between Ceramic Particles and Polymer Matrix in Hybrid Electrolytes by Electrochemical Strain Microscopy

1
Institute of Energy and Climate Research, IEK-9, Forschungszentrum Jülich, 52425 Jülich, Germany
2
Institute of Physical Chemistry, RWTH Aachen University, Landoltweg 2, 52074 Aachen, Germany
3
Jülich-Aachen Research Alliance, Section JARA-Energy, 52425 Jülich, Germany
*
Author to whom correspondence should be addressed.
Academic Editors: Federico Cesano, Simas Rackauskas and Mohammed Jasim Uddin
Nanomaterials 2022, 12(4), 654; https://doi.org/10.3390/nano12040654
Received: 18 January 2022 / Revised: 5 February 2022 / Accepted: 8 February 2022 / Published: 15 February 2022
(This article belongs to the Special Issue Multifunctional Nanomaterials for Energy Applications)
The interface between ceramic particles and a polymer matrix in a hybrid electrolyte is studied with high spatial resolution by means of Electrochemical Strain Microscopy (ESM), an Atomic Force Microscope (AFM)-based technique. The electrolyte consists of polyethylene oxide with lithium bis(trifluoromethanesulfonyl)imide (PEO6–LiTFSI) and Li6.5La3Zr1.5Ta0.5O12 (LLZO:Ta). The individual components are differentiated by their respective contact resonance, ESM amplitude and friction signals. The ESM signal shows increased amplitudes and higher contact resonance frequencies on the ceramic particles, while lower amplitudes and lower contact resonance frequencies are present on the bulk polymer phase. The amplitude distribution of the hybrid electrolyte shows a broader distribution in comparison to pure PEO6–LiTFSI. In the direct vicinity of the particles, an interfacial area with enhanced amplitude signals is found. These results are an important contribution to elucidate the influence of the ceramic–polymer interaction on the conductivity of hybrid electrolytes. View Full-Text
Keywords: Atomic Force Microscopy; Electrochemical Strain Microscopy; hybrid electrolyte; Energy Storage; lithium transport; lithium distribution; all-solid-state electrolytes Atomic Force Microscopy; Electrochemical Strain Microscopy; hybrid electrolyte; Energy Storage; lithium transport; lithium distribution; all-solid-state electrolytes
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MDPI and ACS Style

Veelken, P.M.; Wirtz, M.; Schierholz, R.; Tempel, H.; Kungl, H.; Eichel, R.-A.; Hausen, F. Investigating the Interface between Ceramic Particles and Polymer Matrix in Hybrid Electrolytes by Electrochemical Strain Microscopy. Nanomaterials 2022, 12, 654. https://doi.org/10.3390/nano12040654

AMA Style

Veelken PM, Wirtz M, Schierholz R, Tempel H, Kungl H, Eichel R-A, Hausen F. Investigating the Interface between Ceramic Particles and Polymer Matrix in Hybrid Electrolytes by Electrochemical Strain Microscopy. Nanomaterials. 2022; 12(4):654. https://doi.org/10.3390/nano12040654

Chicago/Turabian Style

Veelken, Philipp M., Maike Wirtz, Roland Schierholz, Hermann Tempel, Hans Kungl, Rüdiger-A. Eichel, and Florian Hausen. 2022. "Investigating the Interface between Ceramic Particles and Polymer Matrix in Hybrid Electrolytes by Electrochemical Strain Microscopy" Nanomaterials 12, no. 4: 654. https://doi.org/10.3390/nano12040654

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