Vadhva, P;
Hu, J;
Johnson, MJ;
Stocker, R;
Braglia, M;
Brett, DJL;
Rettie, AJE;
(2021)
Electrochemical Impedance Spectroscopy for All-Solid-State Batteries: Theory, Methods and Future Outlook.
ChemElectroChem
10.1002/celc.202100108.
(In press).
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Abstract
Electrochemical impedance spectroscopy (EIS) is widely used to probe the physical and chemical processes in lithium (Li)-ion batteries (LiBs). The key parameters include state-of-charge, rate capacity or power fade, degradation and temperature dependence, which are needed to inform battery management systems as well as for quality assurance and monitoring. All-solid-state batteries using a solid-state electrolyte (SE), promise greater energy densities via a Li metal anode as well as enhanced safety, but their development is in its nascent stages and the EIS measurement, cell set-up and modelling approach can be vastly different for various SE chemistries and cell configurations. This review aims to condense the current knowledge of EIS in the context of state-of-the-art solid-state electrolytes and batteries, with a view to advancing their scale-up from the laboratory to commercial deployment. Experimental and modelling best practices are highlighted, as well as emerging impedance methods for conventional LiBs as a guide for opportunities in the solid-state.
| Type: | Article |
|---|---|
| Title: | Electrochemical Impedance Spectroscopy for All-Solid-State Batteries: Theory, Methods and Future Outlook |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1002/celc.202100108 |
| Publisher version: | http://doi.org/10.1002/celc.202100108 |
| Language: | English |
| Additional information: | This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10128519 |
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