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Nanomaterials
Special Issues
Nanoscale Energy Storage Materials for Electrochemical Research
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Nanoscale Energy Storage Materials for Electrochemical Research

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Energy and Catalysis".

Deadline for manuscript submissions: closed (30 August 2021) | Viewed by 2069

Special Issue Editor

Dr. Sooyeon Hwang

E-Mail Website
Guest Editor
Center for Functional Nanomaterials, Brookhaven National Laboratory, P.O. Box 5000, Upton, NY 11973, USA
Interests: transmission electron microscopy; battery materials; catalysts

Special Issue Information

Dear Colleagues,

As nanomaterials offer unique properties compared to their bulk counterparts, nanomaterials have been actively explored in a number of disciplines to improve the performance of devices and to invent the new kind of devices. The development of electrochemical devices has been largely attributed to nanoscale science and engineering, and the potential benefits of nanotechnology are being expected to be huge.

This Special Issue of Nanomaterials provides a forum for discussing recent developments in (i) nanoscale materials for energy storage applications, (ii) characterizations, and (iii) theoretical computations probing nanomaterials at working conditions in order to understand the role of nanomaterials in advancing electrochemical properties. The knowledge gained may be used to support the development of new nanomaterials with desired properties and to provide novel guidance in nanoscale energy storage materials for electrochemical research.

Dr. Sooyeon Hwang
Guest Editor

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. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanomaterials
  • Nanoengineering
  • Energy storage
  • Characterization
  • Theoretical calculations
  • In situ/operando techniques

Published Papers (1 paper)

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Research

6 pages, 1530 KiB  
Communication
Real Time Observation of Lithium Insertion into Pre-Cycled Conversion-Type Materials
by Sooyeon Hwang and Dong Su
Nanomaterials 2021, 11(3), 728; https://doi.org/10.3390/nano11030728 - 14 Mar 2021
Cited by 3 | Viewed by 1696
Abstract
Conversion-type electrode materials for lithium-ion batteries experience significant structural changes during the first discharge–charge cycle, where a single particle is taken apart into a number of nanoparticles. This structural evolution may affect the following lithium insertion reactions; however, how lithiation occurs in pre-cycled [...] Read more.
Conversion-type electrode materials for lithium-ion batteries experience significant structural changes during the first discharge–charge cycle, where a single particle is taken apart into a number of nanoparticles. This structural evolution may affect the following lithium insertion reactions; however, how lithiation occurs in pre-cycled electrode materials is elusive. In this work, in situ transmission electron microscopy was employed to see the lithium-induced structural and chemical evolutions in pre-cycled nickel oxide as a model system. The introduction of lithium ions induced the evolution of metallic nickel, with volume expansion as a result of a conversion reaction. After pre-cycling, the phase evolutions occurred in two separate areas almost at the same time. This is different from the first lithiation, where the phase change takes place successively, with a boundary dividing the reacted and unreacted areas. Structural changes were restricted at the areas having large amount of fluorine, implying the residuals from the decomposition of electrolytes may have hindered the electrochemical reactions. This work provides insights into phase and chemical evolutions in pre-cycled conversion-type materials, which govern electrochemical properties during operation. Full article
(This article belongs to the Special Issue Nanoscale Energy Storage Materials for Electrochemical Research)
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