Mechanistic Understanding of Electrochemical and Chemical Reactions in Batteries with Operando and In-Situ Methods
A special issue of Batteries (ISSN 2313-0105). This special issue belongs to the section "Battery Mechanisms and Fundamental Electrochemistry Aspects".
Deadline for manuscript submissions: 1 July 2024 | Viewed by 5452
Special Issue Editor
Special Issue Information
Dear Colleagues,
This Special Issue on operando and in situ analysis of batteries focuses on elucidating chemical and electrochemical reaction mechanisms in different battery concepts. With the continuous pursuit of higher energy densities and more sustainability of electrode materials, more and more novel and promising battery concepts are coming into the focus of research. However, these systems are not yet ready for broad market introduction in most cases. This is often because the complex reaction mechanisms in the batteries lead to unwanted side reactions. For a better understanding of the internal processes and a knowledge-based approach to material improvement, in situ and operando methods are particularly suitable. These measurements, when properly applied, can very well resolve the complex reactions and help trigger new material synthesis routes for battery performance improvement.
In this issue, several studies will be published on the analysis of half or full cells using operando or in situ methods to provide insights into cell chemistry and degradation mechanisms.
Potential methods and their combinations (multimodal) include but are not limited to:
- X-ray diffraction
- Small-angle X-ray scattering
- X-ray imaging
- X-ray absorption spectroscopy
- X-ray photon spectroscopy
- Impedance spectroscopy
- Raman spectroscopy
- Infrared spectroscopy
- UV/vis spectroscopy
Potential battery concepts or electrodes include but are not limited to:
- Li-ion batteries
- Metal/sulfur batteries
- Alloying anodes such as silicon, tin, germanium, etc.
- Redox flow batteries
Dr. Sebastian Risse
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. Batteries is an international peer-reviewed open access monthly 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 2700 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
- operando battery analysis
- process-performance-relationship
- degradation mechanism in batteries
- multimodal analysis
Planned Papers
The below list represents only planned manuscripts. Some of these manuscripts have not been received by the Editorial Office yet. Papers submitted to MDPI journals are subject to peer-review.
Title: Operando Electrochemical Impedance Spectroscopy for the Investigation of Batteries – A combined Time Drift Correction and Data Analysis Approach
Authors: Sebastian Risse1* and Rafael Müller1
Affiliation: Helmholtz-Zentrum Berlin, Institute for Electrochemical Energy Storage, Hahn-Meitner Platz 1, 14109 Berlin, Germany
Abstract: Electrochemical impedance spectra of batteries measured during charging and discharging can show a significant time drift, making it impossible to evaluate these data with suitable models further. However, as this method provides essential mechanistic insights into the internal electrochemical processes of a battery, applying a suitable correction method and an automated evaluation algorithm to cope with the sheer volume of data is highly desirable. A comprehensive approach for time drift correction and subsequent automated analysis using the distribution of relaxation times is presented here. The applicability of the two Wolfram Mathematica-based algorithms is demonstrated with synthetic data, an experimental impedance simulator, and a real lithium-ion battery. Excellent results can be obtained for all three applications mentioned, qualifying this method as an ideal tool for battery analysis. The programming code of the two algorithms, the structure of the impedance simulator, and a mathematical derivation of the distribution of the relaxation times model are presented in the supporting information.
