Recent Advances of All-Solid-State Battery

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Guest Editor
Nanotechnology Centre, CEET, VSB-Technical University of Ostrava, Ostrava Poruba, Czech Republic
Interests: nanocarbons; ceramics; polymers for all solid state batteries
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Guest Editor
Department of Chemistry and Materials Science, School of Chemical Engineering, Aalto University, Espoo, Finland
Interests: solid-state batteries; electrochemistry; solid electrolytes

Special Issue Information

Dear Colleagues,

The development of solid electrolytes and all-solid-state batteries (ASSBs) has sparked great attention, which could be a crucial technology for the success of forthcoming electronics and electric vehicles. However, solid electrolytes and all-solid-state batteries are hampered due to problematic contact issues at solid–solid interfaces and safety concerns. In addition, the all-solid-state batteries have shown dendrite growth, poor life cycle and energy densities owing to a lack of appropriate electrolyte materials with high ionic conductivity in comparison to liquid electrolytes.

Therefore, the design and characterization of novel solid electrolyte materials are the main topics of this Special Issue. Potential subjects could concentrate as follows:

  • Classification of different types of solid states and overview of their characteristics;
  • Interface types and important aspects;
  • Separators based on composite membranes;
  • Developing novel solid electrolyte materials with high ionic conductivity;
  • Evaluation of current state-of-the-art characterization methods in ASSBs;
  • Solid state electrodes and composite solid electrolyte;
  • Understanding interfacial behavior in ASSBs;
  • Safety issues in all-solid-state batteries and environmental aspects

Dr. Gražyna Simha Martynková
Dr. Sara Pakseresht
Guest Editors

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Keywords

  • solid-state batteries
  • solid electrolyte
  • advanced separators
  • battery testing
  • interface evaluation
  • battery safety

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Published Papers (1 paper)

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Research

15 pages, 3229 KiB  
Article
Nanocomposite PVDF Membrane for Battery Separator Prepared via Hot Pressing
by Lukáš Plesník, Karla Čech Barabaszová, Sylva Holešová, Pavlína Peikertová, Gražyna Simha Martynková and Damian Stanislaw Nakonieczny
Batteries 2023, 9(8), 398; https://doi.org/10.3390/batteries9080398 - 30 Jul 2023
Cited by 3 | Viewed by 2135
Abstract
Polyvinylidene fluoride (PVDF) is one of the materials most commonly used in membrane separators. The structures of pristine PVDF and PVDF nanocomposite films were processed via hot pressing at 140 °C, 170 °C, and 185 °C at a pressure of 2 tons for [...] Read more.
Polyvinylidene fluoride (PVDF) is one of the materials most commonly used in membrane separators. The structures of pristine PVDF and PVDF nanocomposite films were processed via hot pressing at 140 °C, 170 °C, and 185 °C at a pressure of 2 tons for 15 min. According to a surface investigation using scanning electron microscopy (SEM), the spherulitic character of the PVDF nanocomposite films was preserved up to a pressing temperatures of 140 °C. The cross-sectional SEM images confirmed that higher pressing temperatures (170 °C) caused the structures to be compacted into monolithic films, and a pressing temperature of 185 °C caused the melting of the PVDF matrix and its recrystallization into thin films (21–29 μm). An average crystallinity value of 51.5% was calculated using differential scanning calorimetry (DSC), and this decreased as the pressing temperature increased. Fourier transform infrared (FTIR) measurements confirmed the presence of a dominant γ phases in the PVDF nanocomposite films, whose nanofillers consisted of vermiculite particles (ZnO_V and ZnO_V_CH) and mixed α + γ phases. The percentage of the electroactive γ phase (approximately 79%) was calculated via a FTIR analysis, and the ratio between the β phase and the α phase was determined from the Raman spectra. A hydrophilic surface with contact angles ranging from 61 to 84° was demonstrated for all the PVDF nanocomposite membranes. The superoleophilic surface was measured using poly(dimethylsiloxane) with contact angles ranging from 4 to 13°, and these angles reached lower values when in contact with sulfur particles. Full article
(This article belongs to the Special Issue Recent Advances of All-Solid-State Battery)
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