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Challenges and Opportunities for Fast Charging of Solid-State Lithium Metal Batteries
ACS Energy Letters ( IF 22.0 ) Pub Date : 2021-09-30 , DOI: 10.1021/acsenergylett.1c01352
Bairav S. Vishnugopi 1 , Eric Kazyak 2 , John A. Lewis 3 , Jagjit Nanda 4 , Matthew T. McDowell 3, 5 , Neil P. Dasgupta 2, 6 , Partha P. Mukherjee 1
Affiliation  

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.

中文翻译:

固态锂金属电池快速充电的挑战与机遇

从这个角度来看,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)运行的前景和挑战。我们在上下文中介绍了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 SSB 在倍率性能、热安全性和电池结构方面提供的独特优势。尽管 SSB 具有良好的快速充电特性,但我们必须克服与电化学机械相互作用、界面演化和传输动力学二分法有关的基本挑战,以实现它们的实现。我们描述了关键特征的机械意义,包括镀层剥离串扰、金属丝生长、阴极微观结构、和界面形成对 SSB 快速充电性能的影响。为了实现 SSB 中快速充电的最终目标,我们强调了可以有利地调节机械耦合和互相关的内在(例如,界面设计、传输特性)和外在(例如,温度、压力)设计因素。最后,确定了需要回答的关键研究问题列表,以便更深入地了解 SSB 的快速充电能力和要求。
更新日期:2021-10-08
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