Tailoring the interface between Ga3+-doped Li7La3Zr2O12 electrolyte and Li metal electrode via tiny metallic elements

IF 5.1 2区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Ceramics International Pub Date : 2025-03-01 DOI:10.1016/j.ceramint.2024.12.337

Yue Jiang, Rentai Yan, Xiaohong Zhu

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引用次数: 0

Abstract

Ga³⁺-doped Li₇La₃Zr₂O₁₂ (LLZO) has the highest lithium-ion conductivity among the LLZO variants, which attracts huge attention for its potential to achieve high energy density and safety in all-solid-state lithium batteries (ASSLBs). However, some results have shown that Ga³⁺-doped LLZO is not stable with lithium metal, while the others argue that it can be stable. The reason for this discrepancy is not clear. In this work, we have systematically investigated the stability of lithium metal with trace element co-doping in Li_6.4Ga_0.2La₃Zr₂O₁₂ (LLZO-Ga_0.2). It is revealed that Al³⁺ on the Li-24d site stabilizes the interface of LLZO-Ga_0.2/Li, while Mg²⁺ on the Zr site reacts vigorously with lithium metal. Our results may provide important insight into developing high-performance garnet-type oxide solid electrolytes for ASSLBs.

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来源期刊

Ceramics International 工程技术-材料科学：硅酸盐

CiteScore

9.40

自引率

15.40%

发文量

4558

审稿时长

25 days

期刊介绍： Ceramics International covers the science of advanced ceramic materials. The journal encourages contributions that demonstrate how an understanding of the basic chemical and physical phenomena may direct materials design and stimulate ideas for new or improved processing techniques, in order to obtain materials with desired structural features and properties. Ceramics International covers oxide and non-oxide ceramics, functional glasses, glass ceramics, amorphous inorganic non-metallic materials (and their combinations with metal and organic materials), in the form of particulates, dense or porous bodies, thin/thick films and laminated, graded and composite structures. Process related topics such as ceramic-ceramic joints or joining ceramics with dissimilar materials, as well as surface finishing and conditioning are also covered. Besides traditional processing techniques, manufacturing routes of interest include innovative procedures benefiting from externally applied stresses, electromagnetic fields and energetic beams, as well as top-down and self-assembly nanotechnology approaches. In addition, the journal welcomes submissions on bio-inspired and bio-enabled materials designs, experimentally validated multi scale modelling and simulation for materials design, and the use of the most advanced chemical and physical characterization techniques of structure, properties and behaviour. Technologically relevant low-dimensional systems are a particular focus of Ceramics International. These include 0, 1 and 2-D nanomaterials (also covering CNTs, graphene and related materials, and diamond-like carbons), their nanocomposites, as well as nano-hybrids and hierarchical multifunctional nanostructures that might integrate molecular, biological and electronic components.