高稳定全固态电池的局部无序Li2.7Zr0.3In0.7Cl6

IF 20.2 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Energy Storage Materials Pub Date : 2025-10-04 DOI:10.1016/j.ensm.2025.104655

Peiyao Wang, Li Shen, Shuang Wu, Chenyao Ma, Xudong Chen, Shigang Lu, Yongyao Xia, Yufeng Zhao, Wuliang Feng

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引用次数: 0

摘要

全固态电池（assb）具有高能量密度和安全性，为下一代二次电池的发展提供了启示，但仍存在机械故障和离子传输缓慢的障碍。在此，我们提出了一种淬火诱导的局部无序Li2.7Zr0.3In0.7Cl6 （LZIC）卤化物固体电解质，它具有突出的可压缩性和离子电导率。机械上，淬火“冻结”LZIC的高温状态，将LZIC从传统的高刚性晶态转变为更软的局部无序微晶玻璃，从而显着将杨氏模量从53.5 GPa降低到11.8 GPa。离子导电性方面，局部无序不仅通过离子导电性的提高降低了晶界电阻，而且由于缺陷的增加和晶格体积的增大，促进了整体离子传输动力学，从而使LZIC的离子电导率从1.07 mS/cm协同提高到4.25 mS/cm。LZIC的可压缩性和离子输运共同促进了assb在3 MPa的超低堆压下的稳定循环，为assb产业化提供了新的理论和技术途径。

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Local Disordered Li2.7Zr0.3In0.7Cl6 for High Stable All Solid-state Batteries

All solid-state batteries (ASSBs) enlighten the development of next secondary batteries with high energy density and safety, but still suffer from the obstacles of mechanical failure and sluggish ionic transportation. Herein, we present a quench induced local disordered Li_2.7Zr_0.3In_0.7Cl₆ (LZIC) halide solid electrolyte, which shows prominent compressibility and ionic conductivity. Mechanically, quench ‘freeze’ the high temperature state of LZIC, transforming LZIC from conventional high rigid crystalline state to softer local disordered glass-ceramics, thus significantly curtails the Young’s modulus from 53.5 GPa to 11.8 GPa. Ionic conductively, local disordering not only reduces the grain boundary resistance as the improved ionic conduction consecutiveness, but also promotes the bulk ionic transportation kinetics as the increased defects and enlarged lattice volume, which synergistically increased the ionic conductivity of LZIC from 1.07 mS/cm to 4.25 mS/cm. The co-promoted compressibility and ionic transportation of LZIC enabled a stable cycling of ASSBs at an ultra-low stack pressure of 3 MPa, thus providing new theoretical and technical approaches for the industrialization of ASSBs.

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来源期刊

Energy Storage Materials Materials Science-General Materials Science

CiteScore

33.00

自引率

5.90%

发文量

652

审稿时长

27 days

期刊介绍： Energy Storage Materials is a global interdisciplinary journal dedicated to sharing scientific and technological advancements in materials and devices for advanced energy storage and related energy conversion, such as in metal-O2 batteries. The journal features comprehensive research articles, including full papers and short communications, as well as authoritative feature articles and reviews by leading experts in the field. Energy Storage Materials covers a wide range of topics, including the synthesis, fabrication, structure, properties, performance, and technological applications of energy storage materials. Additionally, the journal explores strategies, policies, and developments in the field of energy storage materials and devices for sustainable energy. Published papers are selected based on their scientific and technological significance, their ability to provide valuable new knowledge, and their relevance to the international research community.