锂硫电池原位/操作表征的最新进展

IF 3.2 Q2 CHEMISTRY, PHYSICAL Energy advances Pub Date : 2024-09-04 DOI:10.1039/D4YA00416G
Thomas J. Leckie, Stuart D. Robertson and Edward Brightman
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引用次数: 0

摘要

锂硫电池(LSB)是下一代储能技术,具有取代锂离子电池的潜力,因为其比容量更大,制造材料更便宜、更安全,能量密度更高。LSB 在全球范围内发展迅速,每年约有 1800 篇论文发表,预计到 2028 年市场规模将超过 17 亿美元。然而,要设计出具有商业可行性循环寿命的 LSB,必须解决重大的技术难题,这就需要深入了解电池结构内发生的化学机制。近年来,LSB 的原位/操作测试已成为一种流行的方法,可用于解密其放电过程的动力学和机制(这是出了名的复杂),并直观了解质量沉积到电极上的影响以及这些因素如何影响电池的性能。本综述讨论了 LSB 的原位和操作研究,特别侧重于光谱和形态学技术,以符合文献的发展趋势。此外,本综述还介绍了一些尚未在文献中广泛使用的技术,这些技术在未来可能会成为宝贵的分析工具。这些原位/操作性技术的应用范围越来越广,对研究界和工业界进行综述非常有用,有助于加快这种下一代技术的商业化进程。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Recent advances in in situ/operando characterization of lithium–sulfur batteries

The lithium–sulfur battery (LSB) is a next generation energy storage technology with potential to replace lithium-ion batteries, due to their larger specific capacity, cheaper and safer manufacturing materials, and superior energy density. LSBs are a rapidly progressing topic globally, with around 1800 publications each year and the market is expected to exceed 1.7 billion USD by 2028, as such many novel strategies are being explored to develop and commercialise devices. However, significant technical challenges must be solved to engineer LSBs with commercially viable cycle life, which requires a deeper understanding of the chemical mechanisms occurring within the battery structure. In recent years in situ/operando testing of LSBs has become a popular approach for deciphering the kinetics and mechanisms of their discharge process, which is notoriously complex, and visualising the effects of mass deposition onto the electrodes and how these factors affect the cell's performance. In this review, in situ and operando studies are discussed in the context of LSBs with particular focus on spectroscopic and morphological techniques in line with trends in the literature. Additionally, some techniques have been covered which have yet to be used widely in the literature but could prove to be invaluable tools for analysis in the future. These in situ/operando techniques are becoming more widely available, and a review is useful both for the research community and industry to help accelerate the commercialisation of this next-generation technology.

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Back cover Fabrication methods, pseudocapacitance characteristics, and integration of conjugated conducting polymers in electrochemical energy storage devices Inside back cover Back cover Competing effects of low salt ratio on electrochemical performance and compressive modulus of PEO-LiTFSI/LLZTO composite electrolytes†
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