Li2FeCl4 as a Cost-Effective and Durable Cathode for Solid-State Li-Ion Batteries

IF 19.3 1区材料科学 Q1 CHEMISTRY, PHYSICAL

ACS Energy Letters Pub Date : 2024-10-21 DOI:10.1021/acsenergylett.4c0237610.1021/acsenergylett.4c02376

Zhantao Liu, Guangxing Zhang, Jakub Pepas, Yifan Ma and Hailong Chen*,

引用次数: 0

Abstract

Low-cost cathode materials with high energy density and good rate performance are critical for the development of next-generation solid-state Li-ion batteries (SSLIBs). Here, we report Li₂FeCl₄ as a cathode material for SSLIBs with highly reversible Li intercalation and deintercalation, a high operation voltage of 3.7 V vs Li⁺/Li, good rate capability, and good cycling stability with an 86% capacity retention after 6000 cycles. Operando synchrotron XRD reveals that the phase evolution of Li₂FeCl₄ during charge–discharge cycling involves both solid-solution and two-phase reactions, which maintains a very stable framework during Li insertion and extraction.

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将 Li2FeCl4 用作固态锂离子电池具有成本效益且经久耐用的阴极

具有高能量密度和良好速率性能的低成本阴极材料对于下一代固态锂离子电池（SSLIB）的开发至关重要。在此，我们报告了作为 SSLIBs 负极材料的 Li2FeCl4，它具有高度可逆的锂插层和脱插层，对 Li+/Li 的工作电压高达 3.7 V，具有良好的速率能力和良好的循环稳定性，6000 次循环后容量保持率为 86%。操作同步辐射 XRD 显示，充放电循环过程中 Li2FeCl4 的相演化涉及固溶反应和两相反应，在锂插入和提取过程中保持了非常稳定的框架。

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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来源期刊

ACS Energy Letters Energy-Renewable Energy, Sustainability and the Environment

CiteScore

31.20

自引率

5.00%

发文量

469

审稿时长

1 months

期刊介绍： ACS Energy Letters is a monthly journal that publishes papers reporting new scientific advances in energy research. The journal focuses on topics that are of interest to scientists working in the fundamental and applied sciences. Rapid publication is a central criterion for acceptance, and the journal is known for its quick publication times, with an average of 4-6 weeks from submission to web publication in As Soon As Publishable format. ACS Energy Letters is ranked as the number one journal in the Web of Science Electrochemistry category. It also ranks within the top 10 journals for Physical Chemistry, Energy & Fuels, and Nanoscience & Nanotechnology. The journal offers several types of articles, including Letters, Energy Express, Perspectives, Reviews, Editorials, Viewpoints and Energy Focus. Additionally, authors have the option to submit videos that summarize or support the information presented in a Perspective or Review article, which can be highlighted on the journal's website. ACS Energy Letters is abstracted and indexed in Chemical Abstracts Service/SciFinder, EBSCO-summon, PubMed, Web of Science, Scopus and Portico.