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Lithium-Ion, Lithium-Sulfur, and Lithium-Air Chemistry Using Novel Electrolytes

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Electrochemistry".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 3216

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Guest Editor
Department of Mechanical Engineering, Wayne State University, 5050 Anthony Wayne Drive, Detroit, MI 48202, USA
Interests: nanocatalysts; proton exchange membrane fuel cell; hydrogen production; solid oxide fuel cell; direct methanol fuel cell; metal-air batteries
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Guest Editor
LytEn, 145 Baytech Dr, San Jose, CA 95134, USA
Interests: electrocatalysis; metal-ion and metal-sulfur batteries; supercapacitors; spectro-electrochemistry; nano-electrochemistry

Special Issue Information

Dear Colleagues,

The critical need for high-energy density, long cycle life batteries for a wide range of applications ranging from consumer electronics to electric vehicles has posed a set of challenges to researchers. While we tackle them from several fronts, for instance, through the design of active materials, cell level modifications, and systematic modeling of various aspects of energy storage devices, a breakthrough is yet to take place. Despite the differences in operational mechanisms, all electrochemical systems rely heavily on a key component, the “electrolyte”. It is evident that the electrolyte plays a crucial role in both anode and cathode processes, electron transfer phenomenon, voltage window, rate performance, cycle life, and safety and cost of the battery. In this Special Issue, we focus on the design/development of novel electrolyte systems for any battery system addressing the above metrics or beyond. Also of interest are electrolyte additives, fundamental, mechanistic, and theoretical studies which can further open up new avenues for cutting-edge research on electrolytes. We warmly welcome submissions of manuscripts for the abovementioned categories.

Prof. Dr. Leela Arava
Dr. Kiran Mahankali
Guest Editors

Manuscript Submission Information

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Keywords

  • batteries
  • liquid electrolytes
  • aprotic electrolytes
  • solid-state electrolytes
  • ionic liquid electrolytes
  • hybrid electrolytes
  • sparingly solvating electrolytes
  • aqueous electrolytes
  • electrolyte additives
  • high-temperature electrolytes
  • electrode–electrolyte interface

Published Papers (1 paper)

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Research

14 pages, 3594 KiB  
Article
Rational Screening of High-Voltage Electrolytes and Additives for Use in LiNi0.5Mn1.5O4-Based Li-Ion Batteries
by Oleg A. Drozhzhin, Vitalii A. Shevchenko, Zoia V. Bobyleva, Anastasia M. Alekseeva and Evgeny V. Antipov
Molecules 2022, 27(11), 3596; https://doi.org/10.3390/molecules27113596 - 3 Jun 2022
Cited by 3 | Viewed by 2540
Abstract
In the present work, we focus onthe experimental screening of selected electrolytes, which have been reported earlier in different works, as a good choice for high-voltage Li-ion batteries. Twenty-four solutions were studied by means of their high-voltage stability in lithium half-cells with idle [...] Read more.
In the present work, we focus onthe experimental screening of selected electrolytes, which have been reported earlier in different works, as a good choice for high-voltage Li-ion batteries. Twenty-four solutions were studied by means of their high-voltage stability in lithium half-cells with idle electrode (C+PVDF) and the LiNi0.5Mn1.5O4-based composite as a positive electrode. Some of the solutions were based on the standard 1 M LiPF6 in EC:DMC:DEC = 1:1:1 with/without additives, such as fluoroethylene carbonate, lithium bis(oxalate) borate and lithium difluoro(oxalate)borate. More concentrated solutions of LiPF6 in EC:DMC:DEC = 1:1:1 were also studied. In addition, the solutions of LiBF4 and LiPF6 in various solvents, such as sulfolane, adiponitrile and tris(trimethylsilyl) phosphate, atdifferent concentrations were investigated. A complex study, including cyclic voltammetry, galvanostatic cycling, impedance spectroscopy and ex situ PXRD and EDX, was applied for the first time to such a wide range of electrolytesto provide an objective assessment of the stability of the systems under study. We observed a better anodic stability, including a slower capacity fading during the cycling and lower charge transfer resistance, for the concentrated electrolytes and sulfolane-based solutions. Among the studied electrolytes, the concentrated LiPF6 in EC:DEC:DMC = 1:1:1 performed the best, since it provided both low SEI resistance and stability of the LiNi0.5Mn1.5O4 cathode material. Full article
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