The integration of a solid electrolyte with electrodes without interfacial degradation is an integral part of enabling high-performance all-solid-state batteries. Here we highlight that additive-assisted solid-state reactions using high-energy ball-milling and multistep heating can be an effective approach to lower the processing temperatures of cubic Li₇La₃Zr₂O₁₂ garnet. The obtained total Li conductivity is 1.4 × 10⁻⁴ S cm⁻¹, comparable with that obtained using high-temperature processing. We found that liquid-phase sintering triggered by a lithium borate additive increases the microstrain of Li₇La₃Zr₂O₁₂, increasing Li conductivity. Our work demonstrates the feasibility to engineer conventional ceramics processing to sustainably produce all-solid-state batteries with a low thermal budget in practice.

中文翻译：

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用于固态固态电池的低温下稳定立方晶Li7La3Zr2O12的固态路线

固体电解质与电极的集成而不会发生界面降解是实现高性能全固态电池不可或缺的一部分。在这里，我们强调指出，使用高能球磨和多步加热进行添加剂辅助的固态反应可以是降低立方晶Li ₇ La ₃ Zr ₂ O ₁₂石榴石加工温度的有效方法。所获得的总Li电导率为1.4×10 ^-4 S cm ^-1，与使用高温处理所获得的电导率相当。我们发现，由硼酸锂添加剂引发的液相烧结增加了Li ₇ La ₃ Zr ₂ O的微应变。₁₂，增加Li电导率。我们的工作证明了对常规陶瓷工艺进行工程设计以在实践中以低热预算可持续生产全固态电池的可行性。