Issue 3, 2021

Optimisation of sodium-based energy storage cells using pre-sodiation: a perspective on the emerging field

Abstract

Rechargeable sodium-based energy storage cells (sodium-ion batteries, sodium-based dual-ion batteries and sodium-ion capacitors) are currently enjoying enormous attention from the research community due to their promise to replace or complement lithium-ion cells in multiple applications. In all of these emerging sodium-based systems, their performances are worsened by a range of undesired complications, including insufficient initial content of sodium ions in a cell, poor initial coulombic efficiencies of electrode materials, loss of sodium ions during long-term cycling, and the lack of practical possibility to optimise potential ranges in negative and positive electrodes. Pre-sodiation has emerged as an appealing technique to alleviate these problems and, therefore, to increase the practical energy densities of these devices. Nevertheless, the concept of pre-sodiation appears to be under-appreciated within the community, despite the fact that parallel methods of pre-lithiation find more and more uses in the established lithium-based energy storage cells. The intent of this timely perspective is to educate the community on the important benefits of pre-sodiation for a broad range of sodium-based energy storage cells and provide an up-to-date overview of this emerging field. A detailed summary of various situations where pre-sodiation is needed is provided, followed by the critical analysis of electrochemical and chemical techniques used for this purpose. An emphasis is made on the commercialisation potential of the optimal pre-sodiation procedures, and suggestions are provided for the areas of future advancement in the field. This perspective provides important insights of a broad interest to a multidisciplinary community of energy scientists, materials chemists and engineers working at the interface of new energy storage chemistries, device engineering and relevant materials science.

Graphical abstract: Optimisation of sodium-based energy storage cells using pre-sodiation: a perspective on the emerging field

Article information

Article type
Perspective
Submitted
30 aug 2020
Accepted
12 jan 2021
First published
12 jan 2021

Energy Environ. Sci., 2021,14, 1380-1401

Optimisation of sodium-based energy storage cells using pre-sodiation: a perspective on the emerging field

D. Dewar and A. M. Glushenkov, Energy Environ. Sci., 2021, 14, 1380 DOI: 10.1039/D0EE02782K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements