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Advanced in situ technology for Li/Na metal anodes: an in-depth mechanistic understanding
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-4-27 , DOI: 10.1039/d1ee00110h Jun Pu 1, 2, 3, 4, 5 , Chenglin Zhong 6, 7, 8, 9, 10 , Jiahao Liu 9, 10, 11, 12 , Zhenghua Wang 1, 2, 3, 4, 5 , Dongliang Chao 9, 10, 11, 12
Energy & Environmental Science ( IF 32.4 ) Pub Date : 2021-4-27 , DOI: 10.1039/d1ee00110h Jun Pu 1, 2, 3, 4, 5 , Chenglin Zhong 6, 7, 8, 9, 10 , Jiahao Liu 9, 10, 11, 12 , Zhenghua Wang 1, 2, 3, 4, 5 , Dongliang Chao 9, 10, 11, 12
Affiliation
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Li/Na metal anodes, based on their high theoretical capacity and low electrochemical potential, provide promising alternatives for next-generation high energy batteries. However, their unstable solid–electrolyte interphase and dendrite growth remain ubiquitous issues that have led to the decline of cycle performance and even safety problems. In the past 5 years, research interest and achievements in in situ technologies have surged globally, including in situ reactions to form a specific interface layer and in situ characterization to capture transient metastable information of metal anodes continuously as a function of time. It is desirable to provide an overview with a comprehensive understanding of the reaction process, degradation mechanism and structure evolution of metallic Li/Na through advanced in situ techniques. A critical appraisal of recent advances in the in situ technology is also presented for addressing the key issues in metallic Li/Na anodes, with a special emphasis on the emerging in situ electrode design and advanced in situ electrochemistry mechanism analysis. Finally, we provide a roadmap regarding the remaining challenges and integrated improvement strategies toward next-generation reliable and stable metal anodes.
中文翻译：
锂/钠金属阳极的先进原位技术：深入的机械理解
Li / Na金属阳极具有较高的理论容量和较低的电化学势，可为下一代高能电池提供有希望的替代方案。但是，它们不稳定的固体电解质相间和枝晶生长仍然是普遍存在的问题，导致循环性能下降甚至安全问题。在过去的5年中，全球对原位技术的研究兴趣和成就激增，包括原位反应以形成特定的界面层和原位表征以连续捕获金属阳极的瞬态亚稳态信息作为时间的函数。希望提供一种通过先进的原位技术全面了解金属Li / Na的反应过程，降解机理和结构演变的概述。还提出了对原位技术最新进展的关键评估，以解决金属Li / Na阳极中的关键问题，特别着重于新兴的原位电极设计和先进的原位电化学机理分析。最后，我们提供了有关下一代可靠可靠的金属阳极的剩余挑战和综合改进策略的路线图。
更新日期：2021-05-25
中文翻译：
锂/钠金属阳极的先进原位技术：深入的机械理解
Li / Na金属阳极具有较高的理论容量和较低的电化学势，可为下一代高能电池提供有希望的替代方案。但是，它们不稳定的固体电解质相间和枝晶生长仍然是普遍存在的问题，导致循环性能下降甚至安全问题。在过去的5年中，全球对原位技术的研究兴趣和成就激增，包括原位反应以形成特定的界面层和原位表征以连续捕获金属阳极的瞬态亚稳态信息作为时间的函数。希望提供一种通过先进的原位技术全面了解金属Li / Na的反应过程，降解机理和结构演变的概述。还提出了对原位技术最新进展的关键评估，以解决金属Li / Na阳极中的关键问题，特别着重于新兴的原位电极设计和先进的原位电化学机理分析。最后，我们提供了有关下一代可靠可靠的金属阳极的剩余挑战和综合改进策略的路线图。
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