Optimisation of sodium-based energy storage cells using pre-sodiation: a perspective on the emerging field,Energy & Environmental Science

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Optimisation of sodium-based energy storage cells using pre-sodiation: a perspective on the emerging field
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-1-12 , DOI: 10.1039/d0ee02782k
Daniel Dewar _{1,

2,

3,

4,

5} , Alexey M. Glushenkov _{1,

2,

3,

4}

Affiliation

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.

中文翻译：

使用预沉淀法优化钠基储能电池：新兴领域的观点

可充电钠基储能电池（钠离子电池，钠基双离子电池和钠离子电容器）由于有望在多种应用中替代或补充锂离子电池而受到了研究界的广泛关注。。在所有这些新兴的基于钠的系统中，其性能会因一系列不良并发症而恶化，包括电池中钠离子的初始含量不足，电极材料的初始库伦效率低，长期循环过程中钠离子的流失，并且缺乏优化负极和正极电位范围的实际可能性。预共沉淀已经成为缓解这些问题并因此增加这些设备的实际能量密度的有吸引力的技术。不过，尽管事实上，预锂化的并行方法在已建立的基于锂的储能电池中有越来越多的用途，但预氧化的概念在社区内似乎并未得到足够的重视。这种及时的观点的目的是教育社区对钠基储能电池进行预沉淀的重要益处，并提供有关该新兴领域的最新概述。提供了需要预沉淀的各种情况的详细摘要，然后对用于此目的的电化学和化学技术进行了严格的分析。重点介绍了最佳预沉淀程序的商业化潜力，并为该领域的未来发展领域提供了建议。

更新日期：2021-01-22

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