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Solid Electrolyte Interphases on Sodium Metal Anodes

机译：固体电解质对钠金属阳极的互相差异

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摘要

Sodium metal anodes have attracted significant attention due to their high specific capacity (1166 mA h g(-1)), low redox potential (-2.71 V vs the standard hydrogen electrode), and abundant natural resources. Nevertheless, unstable solid electrolyte interphases (SEI) and uncontrolled dendrite growth critically hinder their commercialization. Notably, SEIs play a critical role in regulating Na deposition and improving the cycling stability of rechargeable Na metal batteries. Recently, SEI research on Na metal anodes has been intensively conducted worldwide; thus, a comprehensive review is necessary. Herein, initially, the fundamentals of SEI and the related issues induced by its intrinsic instability are discussed. Thereafter, advanced characterization techniques that unveil the morphological evolution and interfacial chemistry of Na metal anodes are presented. Subsequently, efficient strategies, including liquid electrolyte engineering, artificial SEI, and solid-state electrolyte technology, to stabilize SEI films are outlined. Finally, key aspects and prospects in the development of SEI for Na metal anodes are highlighted. It is believed that this review will serve to further advance the understanding and development of SEIs for Na metal anodes.
机译：由于其高特定容量（1166mA H（-1）），低氧化还原电位（-2.71V与标准氢电极）和丰富的自然资源，钠金属阳极引起了显着的关注。然而，不稳定的固体电解质差异（SEI）和不受控制的树突生长危及其商业化。值得注意的是，SEIS在调节NA沉积方面发挥着关键作用，提高可充电NA金属电池的循环稳定性。最近，在全球范围内集中进行了对Na Metal Anodes的SEI研究;因此，必须进行全面的审查。在此，初步，讨论了SEI的基本原理和由其内在不稳定性引起的相关问题。此后，提出了推出Na金属阳极的形态演化和界面化学的先进表征技术。随后，概述了高效的策略，包括液体电解质工程，人造SEI和固态电解质技术，以稳定SEI膜。最后，突出了对Na金属阳极开发的关键方面和前景。据信，本综述将有助于进一步推进对NA金属阳极SEI的理解和发展。

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  • 来源
    《Advanced Functional Materials》 |2020年第52期|2004891.1-2004891.27|共27页
  • 作者

    Bao Changyuan; Wang Bo; Liu Peng; Wu Hao; Zhou Yu; Wang Dianlong; Liu Huakun; Dou Shixue;

  • 作者单位

    Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Peoples R China|Harbin Inst Technol Sch Mat Sci & Engn Harbin 150001 Peoples R China;

    Univ Wollongong Australian Inst Innovat Mat Inst Superconducting & Elect Mat Wollongong NSW 2500 Australia;

    Sichuan Univ Coll Mat Sci & Engn Chengdu 610064 Peoples R China;

    Harbin Inst Technol Sch Mat Sci & Engn Harbin 150001 Peoples R China;

    Harbin Inst Technol Sch Chem & Chem Engn MIIT Key Lab Crit Mat Technol New Energy Convers Harbin 150001 Peoples R China;

    Univ Wollongong Australian Inst Innovat Mat Inst Superconducting & Elect Mat Wollongong NSW 2500 Australia;

    Univ Wollongong Australian Inst Innovat Mat Inst Superconducting & Elect Mat Wollongong NSW 2500 Australia;

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  • 正文语种 eng
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  • 关键词

    advanced characterization; interfacial engineering; Na metal anodes; solid electrolyte interphases;

    机译：高级特征;界面工程;Na金属阳极;固体电解质互相;

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