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: closed (1 July 2024) | Viewed by 6323

Special Issue Editor


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Guest Editor
Department for Electrochemical Energy Storage, Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, 14109 Berlin, Germany
Interests: operando analysis of energy materials; electrochemical energy storage; small-angle scattering; impedance spectroscopy

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

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Keywords

  • operando battery analysis
  • process-performance-relationship
  • degradation mechanism in batteries
  • multimodal analysis

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Published Papers (1 paper)

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Research

19 pages, 3749 KiB  
Article
Understanding Aqueous Organic Redox Flow Batteries: A Guided Experimental Tour from Components Characterization to Final Assembly
by Juan Asenjo-Pascual, Ivan Salmeron-Sanchez, Juan Ramón Avilés-Moreno, Pablo Mauleón, Petr Mazur and Pilar Ocón
Batteries 2022, 8(10), 193; https://doi.org/10.3390/batteries8100193 - 19 Oct 2022
Cited by 10 | Viewed by 5640
Abstract
The implementation of renewable energies into the electrical grid is one of our best options to mitigate the climate change. Redox flow batteries (RFB) are one of the most promising candidates for energy storage due to their scalability, durability and low cost. Despite [...] Read more.
The implementation of renewable energies into the electrical grid is one of our best options to mitigate the climate change. Redox flow batteries (RFB) are one of the most promising candidates for energy storage due to their scalability, durability and low cost. Despite this, just few studies have explained the basic concepts of RFBs and even fewer have reviewed the experimental conditions that are crucial for their development. This work aspired to be a helpful guide for beginner researchers who want to work in this exciting field. This guided tour aimed to clearly explain all the components and parameters of RFBs. Using a well-studied chemistry of anthraquinone (AQDS)-based anolyte and Na4[Fe(CN)6] catholyte, different techniques for the characterization of RFBs were described. The effects of some experimental parameters on battery performance such as electrolyte pH, O2 presence, membrane pretreatment and the capacity limiting side, were demonstrated. Furthermore, this analysis served to introduce different electrochemical techniques, i.e., load curve measurements, electrochemical impedance spectroscopy and charge–discharge cycling tests. This work aimed to be the nexus between the basic concepts and the first experimental steps in the RFB field merging theory and experimental data. Full article
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