Challenges and Opportunities for Fast Charging of Solid-State Lithium Metal Batteries
Challenges and Opportunities for Fast Charging of Solid-State Lithium Metal Batteries
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DOI：
10.1021/acsenergylett.1c01352
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发表时间：
2021-09
影响因子：
22
通讯作者：
B. Vishnugopi;E. Kazyak;J. Lewis;J. Nanda;M. McDowell;N. Dasgupta;P. Mukherjee
中科院分区：
文献类型：
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作者：
B. Vishnugopi;E. Kazyak;J. Lewis;J. Nanda;M. McDowell;N. Dasgupta;P. Mukherjee
在本展望中，我们评估了固态电池（ssb）在快速充电条件下（例如，充电<10分钟）的前景和挑战。我们介绍了当前最先进的锂离子电池（lib）和液态锂金属电池的局限性，并强调了固态锂电池在速率性能、热安全性和电池结构方面的独特优势。尽管SSBs具有很好的快充特性，但我们必须克服电化学-力学相互作用、界面演化和传输动力学二分法等基本挑战才能实现其实现。我们描述了包括镀剥离串扰、金属长丝生长、阴极微观结构和间相形成在内的关键特征对ssb快速充电性能的机理影响。为了实现ssb快速充电的最终目标，我们强调了可以有利地调节机制耦合和相互关联的内在（例如，界面设计，输运性质）和外在（例如，温度，压力）设计因素。最后，确定了一系列需要回答的关键研究问题，以更深入地了解固态电池的快速充电能力和需求。
In this Perspective, we assess the promise and challenges for solid-state batteries (SSBs) to operate under fast-charge conditions (e.g., <10 min charge). We present the limitations of state-of-the-art lithium-ion batteries (LIBs) and liquid-based lithium metal batteries in context, and highlight the distinct advantages offered by SSBs with respect to rate performance, thermal safety, and cell architecture. Despite the promising fast-charge attributes of SSBs, we must overcome fundamental challenges pertaining to electro-chemo-mechanics interaction, interface evolution, and transport-kinetics dichotomy to realize their implementation. We describe the mechanistic implications of critical features including plating-stripping crosstalk, metallic filament growth, cathode microstructure, and interphase formation on the fast-charge performance of SSBs. Toward achieving the eventual goal of fast-charge in SSBs, we highlight both intrinsic (e.g., interface design, transport properties) and extrinsic (e.g., temperature, pressure) design factors that can favorably modulate the mechanistic coupling and cross-correlations. Finally, a list of key research questions is identified that need to be answered to gain a deeper understanding of the fast-charge capabilities and requirements of SSBs.