ABSTRACT All-ceramic Li batteries (CLBs) are expected as next generation energy storage devices because of their potential to have higher energy density and safety than nowadays Li-ion batteries. Garnet structured Li7La3Zr2O12 (LLZO) plays an important role on CLB developments due to its fast Li-ion conductivity, intrinsic stability toward Li and high chemical and electrochemical stabilities. After a decade of researches, many problems have been answered for LLZO-based CLB developments but still numerous challenges left to be solved. This review presents the latest efforts on the development of LLZO based CLBs, which covers the advances in LLZO crystal structure to increase its ionic conductivity and progresses in the use of Li as the electrode, regarding to its intrinsic chemical stability toward Li and interface elaboration for allowing Li dendrite suppression. On the positive electrode developments, chemical compatibility of various active materials and strategies to circumvent the incompatibility issue at high sintering temperatures are inspected.

中文翻译：

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基于石榴石结构Li7La3Zr2O12的全陶瓷锂电池

摘要 全陶瓷锂电池 (CLB) 有望成为下一代储能设备，因为它们具有比当今锂离子电池更高的能量密度和安全性的潜力。石榴石结构的 Li7La3Zr2O12 (LLZO) 由于其快速的锂离子电导率、对锂的固有稳定性以及高化学和电化学稳定性，在 CLB 的发展中发挥着重要作用。经过十年的研究，基于 LLZO 的 CLB 开发已经解决了许多问题，但仍有许多挑战有待解决。这篇综述介绍了基于 LLZO 的 CLB 开发的最新成果，涵盖了 LLZO 晶体结构在提高其离子电导率方面的进展，以及在使用锂作为电极方面的进展，关于其对锂的内在化学稳定性和允许锂枝晶抑制的界面阐述。在正极开发方面，检查了各种活性材料的化学相容性以及在高烧结温度下规避不相容性问题的策略。