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首页> 外文期刊>Advanced energy materials >Eliminating Dendrites through Dynamically Engineering the Forces Applied during Li Deposition for Stable Lithium Metal Anodes
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Eliminating Dendrites through Dynamically Engineering the Forces Applied during Li Deposition for Stable Lithium Metal Anodes

机译：通过动态设计稳定锂金属阳极在锂沉积过程中施加的力来消除枝晶

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摘要

Lithium metal anodes are considered the most promising anode for next-generation high-energy-density batteries due to their high theoretical capacity and low electrochemical potential. However, intractable barriers, especially the notorious dendrite growth, severe volume expansion, and side reactions, have obstructed its large-scale application. Numerous strategies from different points of view are explored to surmount these obstacles. Within these efforts, dynamically engineering the forces applied during the electrochemical process plays a significant role, as they can potentially eliminate the dendrite growth. In this Research News article, the relationship between different kinds of forces and the behavior of Li+/Li during the lithium deposition process is first explicated. Advanced strategies in building dendrite-free Li anodes through dynamically engineering these forces are also summarized by sorting the Li deposition process into three stages: Li+ transport in electrolyte, Li+ reduction/Li atom surface migration, and Li bulk diffusion. Future perspectives and promising research directions for dendrite control are finally proposed. It is expected that dynamically engineering the forces applied during Li deposition will pave the way for next-generation high-energy-density rechargeable Li metal batteries.
机译：锂金属阳极由于其高理论容量和低电化学势而被认为是下一代高能量密度电池最有希望的阳极。但是，棘手的障碍，尤其是臭名昭著的枝晶生长，严重的体积膨胀和副反应，阻碍了其大规模应用。为了克服这些障碍，人们从不同角度探索了许多策略。在这些努力中，动态设计电化学过程中施加的力起着重要作用，因为它们可以消除树枝状晶体的生长。在这篇研究新闻文章中，首先阐述了在锂沉积过程中不同种类力与Li + / Li行为之间的关系。通过动态地设计这些力来构建无枝晶状的Li阳极的先进策略，还通过将Li沉积过程分为三个阶段进行了总结：电解质中的Li +迁移，Li +还原/ Li原子表面迁移和Li体积扩散。最后提出了枝晶控制的未来观点和有前途的研究方向。可以预期，动态设计锂沉积过程中施加的力将为下一代高能量密度可充电锂金属电池铺平道路。

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  • 来源
    《Advanced energy materials》 |2020年第4期|1902932.1-1902932.8|共8页
  • 作者

    Ren Lingxiao; Wang Aoxuan; Zhang Xinyue; Li Guojie; Liu Xingjiang; Luo Jiayan;

  • 作者单位

    Tianjin Univ Sch Chem Engn & Technol State Key Lab Chem Engn Key Lab Green Chem Technol Minist Educ Tianjin 300072 Peoples R China;

    Tianjin Univ Sch Chem Engn & Technol State Key Lab Chem Engn Key Lab Green Chem Technol Minist Educ Tianjin 300072 Peoples R China|Zhengzhou Univ Minist Educ Key Lab Mat Proc & Mold Zhengzhou 450002 Henan Peoples R China;

    Tianjin Univ Sch Chem Engn & Technol State Key Lab Chem Engn Key Lab Green Chem Technol Minist Educ Tianjin 300072 Peoples R China|Tianjin Inst Power Sources Natl Key Lab Sci & Technol Power Sources Tianjin 300384 Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    dendrite; elimination; energy; force; lithium metal batteries;

    机译：枝晶消除能源;力;锂金属电池;

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