Nanostructured Garnet-type Li7La3Zr2O12: Synthesis, Properties, and Opportunities as Electrolytes for Li-ion Batteries
Nanostructured Garnet-type Li7La3Zr2O12: Synthesis, Properties, and Opportunities as Electrolytes for Li-ion Batteries
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DOI：
10.1016/j.electacta.2017.08.130
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发表时间：
2017-11-01
影响因子：
6.6
通讯作者：
Weller, J. Mark
中科院分区：
文献类型：
--
作者：
Chan, Candace K.;Yang, Ting;Weller, J. Mark
石榴石型锂离子导体Li₇La₃Zr₂O₁₂（LLZO）是一种很有前景的全固态锂离子电池固体电解质候选材料。在过去十年中，对于采用传统固相反应法合成的LLZO的结构和性能的理解已经取得了重大进展。本综述的目的是总结近期在纳米结构LLZO合成方面所做的努力，重点关注静电纺丝、纤维素模板法以及低温（<900℃）溶胶 - 凝胶法，并强调纳米尺寸LLZO的独特性能。要充分了解在颗粒型陶瓷电解质中使用纳米结构LLZO的潜在优势，仍需进一步研究，但纳米结构LLZO在固体复合聚合物电解质（CPEs）中作为陶瓷填料是一个自然的应用机会。本文总结了嵌入LLZO陶瓷填料的CPEs的现状，包括利用核磁共振（NMR）光谱阐明锂离子传输途径。（C）2017爱思唯尔有限公司。保留所有权利。
The garnet-type Li+ ion conductor Li7La3Zr2O12 (LLZO) is a promising candidate as a solid electrolyte for all-solid-state Li-ion batteries. Significant progress towards understanding the structure and properties of LLZO, conventionally synthesized using solid state reaction methods, has already been made in the last decade. The aim of this review is to summarize recent efforts on the synthesis of nanostructured LLZO, with a focus on electrospinning, cellulose templating, and low-temperature (< 900 degrees C) sol-gel based methods, as well as to highlight the unique properties of nano-sized LLZO. Further research is still needed to fully understand the potential benefits of using nanostructured LLZO in pellet-type, ceramic electrolytes, but a natural opportunity for nanostructured LLZO is in the role of ceramic filler within solid composite polymer electrolytes (CPEs). The current status of CPEs embedded with LLZO ceramic fillers is summarized, including the elucidation of Li+ transport pathways using nuclear magnetic resonance (NMR) spectroscopy. (C) 2017 Elsevier Ltd. All rights reserved.