Energy Conversion Materials/Devices and Their Applications, 2nd Edition

A special issue of Micromachines (ISSN 2072-666X). This special issue belongs to the section "C:Chemistry".

Deadline for manuscript submissions: 20 April 2026 | Viewed by 506

Special Issue Editors

School of Energy and Power Engineering, North University of China, Taiyuan 030051, China
Interests: clusteroluminescence materials; carbonized polymer dots; luminescent solar concentrators
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Guest Editor
School of Energy and Power Engineering, North University of China, Taiyuan 030051, China
Interests: electrochromic materials and devices; supercapacitors; Li/Zn-ions battery; electrolytes
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
School of Energy and Power Engineering, North University of China, Taiyuan 030051, China
Interests: carbon dots; organic solar cells; light-emitting diodes
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This Special Issue, titled "Energy Conversion Materials/Devices and Their Applications, 2nd Edition", focuses on the research and development of advanced materials and devices for energy conversion applications. The primary goal is to address growing global energy demands and environmental concerns by exploring innovative solutions for more efficient energy conversion and storage. This Special Issue will feature high-quality original research articles and review articles written by leading experts in the field. The articles will spotlight the latest advancements in energy conversion materials, including novel materials synthesis methods, structural characterization, and property evaluation. Additionally, this collection will cover the development of innovative devices, such as high-performance solar cells, fuel cells, and batteries, as well as their integration into energy systems for sustainable energy generation and storage. This Special Issue aims at inspiring further research and innovations in the field, ultimately accelerating the transition towards a sustainable energy future.

Dr. Bin Liu
Dr. Lei Liu
Dr. Yaling Wang
Guest Editors

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Keywords

  • photovoltaics
  • fuel cells
  • supercapacitors
  • batteries
  • luminescent solar concentrators
  • light-emitting diodes
  • optoelectronic materials
  • thermoelectric materials
  • luminescent materials
  • hydrogen energy materials
  • photocatalytic materials
  • photothermal materials
  • electrochromic materials and devices

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Published Papers (1 paper)

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Research

18 pages, 5704 KB  
Article
Multiphysics Measurement Method for Supercapacitors State of Health Determination
by Thomas Doucet, Jean-François Mogniotte, Raphaël Amiot, Alaa Hijazi, Pascal Venet, Minh-Quyen Le and Pierre-Jean Cottinet
Micromachines 2025, 16(11), 1295; https://doi.org/10.3390/mi16111295 - 19 Nov 2025
Viewed by 347
Abstract
This work presents a comparative study on the ageing of supercapacitors and a method for monitoring their state of health (SoH) through mechanical deformation. This study aims to evaluate the accelerated ageing behaviours of these systems under specific cycling conditions and temperatures, allowing [...] Read more.
This work presents a comparative study on the ageing of supercapacitors and a method for monitoring their state of health (SoH) through mechanical deformation. This study aims to evaluate the accelerated ageing behaviours of these systems under specific cycling conditions and temperatures, allowing the establishment of a correlation between SoH and casing deformation in supercapacitors. Experimental ageing tests revealed supercapacitors displayed an initial “burning” phase followed by a linear ageing trend. Strain gauges were employed to measure the mechanical deformation of supercapacitor casings, providing real-time insights into their SoH. Capacitance fading in supercapacitors was modelled using Brunauer–Emmett–Teller (BET) theory, hypothesizing that gas adsorption during ageing significantly contributes to performance decline. Model predictions were validated against experimental data, demonstrating a clear correlation between capacitance fading, internal resistance, remaining energy, and casing deformation. This work highlights the potential of mechanical deformation monitoring as a practical and non-invasive approach for assessing the SoH of supercapacitors. Full article
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