Special Issue "Novel Electrical Double Layer Capacitors of Carbon Based Electrodes"
Deadline for manuscript submissions: 30 May 2020.
Interests: theoretical physics; condensed matter; biophysics; physical chemistry; nanoscience and nanotechnology; nanocarbon based composites; biomedical applications
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Electrical double-layer (EDL) capacitors, also known as supercapacitors, are promising candidates for energy storage when high-power density, high cycle efficiency, and long cycle life are required. Unlike batteries, which store energy in chemical bonds, EDL capacitors store electrical energy at an electrode–electrolyte interface when a voltage bias is applied. The absence of the resistances associated with the charge-transfer reactions present in batteries allows the energy to be stored and delivered at extremely high power.
The maximum capacitance of EDL devices is on the order of hundreds of farads per gram, orders of magnitude larger than that of a traditional dielectric capacitor whose capacitance is typically in the microfarad per gram range. Large capacitances are achievable thanks to the extremely short charge separation distance at the electrode–electrolyte interface and the exceptionally high specific surface area of porous carbon electrodes. The highest energy storage densities of commercially available EDL capacitors, based on high-surface-area activated carbons, are nevertheless still not very outstanding—an order of magnitude smaller than in Li-ion batteries. Research has therefore focused on increasing the energy density of EDL capacitors without sacrificing the power density and cycle life. Optimization of the electrode material is crucial, because at a given maximum voltage, the total stored energy is proportional to the capacitance.
Thus, the aim of this Special Issue is to share interesting and promising works among researchers, particularly concerning advanced EDL capacitors of carbon-based electrodes. State-of-the-art composite electrode materials, including carbon/carbon, carbon/metal oxide, carbon/polymer, and other novel composite material systems, can be covered. We will also consider other advanced composite materials in EDL capacitors and devices.
It is my pleasure to invite you to contribute to this Special Issue "Novel Electrical Double-Layer Capacitors of Carbon-Based Electrodes".
Prof. Stefano Bellucci
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
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- Electrical double-layer capacitors
- Carbon-based electrodes
- Internal resistance