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Special Issue "Molecular Research Approaches for Energy Storage Systems beyond Lithium"

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A special issue of International Journal of Molecular Sciences (ISSN 1422-0067). This special issue belongs to the section "Physical Chemistry and Chemical Physics".

Deadline for manuscript submissions: closed (31 December 2020) | Viewed by 9275

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Dr. Carlos Miguel Costa

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Guest Editor

Centre of Physics, University of Minho, 4710-057 Braga, Portugal
Interests: micro- and nanopolymer composites; energy storage applications; lithium-ion battery; anode and cathode materials; separator membranes; dielectric properties
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Dr. Senentxu Lanceros-Mendez

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Guest Editor

BCMaterials, Basque Center for Materials, Applications and Nanostructures, UPV/EHU Science Park, 48940 Leioa, Spain
Interests: multifunctional materials for sensors and actuators; environmental, energy, and biomedical applications
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Special Issue Information

Dear Colleagues,

The development of environmentally friendlier and efficient energy storage systems for portable electronic devices and electric vehicles is an increasing need in a technological society heavily dependent on mobility. The paradigm is to find new materials and concepts, through molecular research at different levels for different battery components (electrodes and separator) of energy storage systems beyond lithium, leading to batteries with high discharge capacity, excellent cycling performance, and low volume change after many charging cycles.

It is our pleasure to invite you to submit original research papers, short communications or state-of-the-art reviews within the scope of this Special Issue. Contributions can range from fundamental properties of materials and their processing and characterization to innovations in processing technologies for energy storage systems beyond lithium.

Dr. Carlos Miguel Costa
Prof. Dr. Senentxu Lanceros-Mendez
Guest Editors

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 submissions that pass pre-check are 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.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. International Journal of Molecular Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

Sodium-ion batteries
Potassium-ion batteries
Aluminum-ion batteries
Magnesium-ion batteries
Non-aqueous redox flow

Published Papers (2 papers)

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Research

Open AccessArticle

Enhanced Cycling Performance of Rechargeable Zinc–Air Flow Batteries Using Potassium Persulfate as Electrolyte Additive

and

Int. J. Mol. Sci. 2020, 21(19), 7303; https://doi.org/10.3390/ijms21197303 - 02 Oct 2020

Cited by 24 | Viewed by 3442

Abstract

Zinc–air batteries (ZABs) offer high specific energy and low-cost production. However, rechargeable ZABs suffer from a limited cycle life. This paper reports that potassium persulfate (KPS) additive in an alkaline electrolyte can effectively enhance the performance and electrochemical characteristics of rechargeable zinc–air flow batteries (ZAFBs). Introducing redox additives into electrolytes is an effective approach to promote battery performance. With the addition of 450 ppm KPS, remarkable improvement in anodic currents corresponding to zinc (Zn) dissolution and limited passivation of the Zn surface is observed, thus indicating its strong effect on the redox reaction of Zn. Besides, the addition of 450 ppm KPS reduces the corrosion rate of Zn, enhances surface reactions and decreases the solution resistance. However, excess KPS (900 and 1350 ppm) has a negative effect on rechargeable ZAFBs, which leads to a shorter cycle life and poor cyclability. The rechargeable ZAFB, using 450 ppm KPS, exhibits a highly stable charge/discharge voltage for 800 cycles. Overall, KPS demonstrates great promise for the enhancement of the charge/discharge performance of rechargeable ZABs. Full article

(This article belongs to the Special Issue Molecular Research Approaches for Energy Storage Systems beyond Lithium)

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Open AccessArticle

Binder-Free α-MnO₂ Nanowires on Carbon Cloth as Cathode Material for Zinc-Ion Batteries

Ryan Dula Corpuz

Lyn Marie De Juan-Corpuz

Mai Thanh Nguyen

Tetsu Yonezawa

Heng-Liang Wu

Anongnat Somwangthanaroj

and

Soorathep Kheawhom

Int. J. Mol. Sci. 2020, 21(9), 3113; https://doi.org/10.3390/ijms21093113 - 28 Apr 2020

Cited by 19 | Viewed by 5332

Abstract

Recently, rechargeable zinc-ion batteries (ZIBs) have gained a considerable amount of attention due to their high safety, low toxicity, abundance, and low cost. Traditionally, a composite manganese oxide (MnO₂) and a conductive carbon having a polymeric binder are used as a positive electrode. In general, a binder is employed to bond all materials together and to prevent detachment and dissolution of the active materials. Herein, the synthesis of α-MnO₂ nanowires on carbon cloth via a simple one-step hydrothermal process and its electrochemical performance, as a binder-free cathode in aqueous and nonaqueous-based ZIBs, is duly reported. Morphological and elemental analyses reveal a single crystal α-MnO₂ having homogeneous nanowire morphology with preferential growth along {001}. It is significant that analysis of the electrochemical performance of the α-MnO₂ nanowires demonstrates more stable capacity and superior cyclability in a dimethyl sulfoxide (DMSO) electrolyte ZIB than in an aqueous electrolyte system. This is because DMSO can prevent irreversible proton insertion as well as unfavorable dendritic zinc deposition. The application of the binder-free α-MnO₂ nanowires cathode in DMSO can promote follow-up research on the high cyclability of ZIBs. Full article

(This article belongs to the Special Issue Molecular Research Approaches for Energy Storage Systems beyond Lithium)

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