钛磷酸钠玻璃的加入对Na3Zr2Si2PO12/玻璃-陶瓷固体复合电解质结构和物理性能的影响

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

Ceramics International Pub Date : 2025-04-01 DOI:10.1016/j.ceramint.2024.12.539

Ziqiong Zhang, Guo Yang, Meng Sun, Xiaomei Li, Zhenlin Wang

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引用次数: 0

摘要

为了通过改变NACICON型全固态Na3Zr2Si2PO12 （NZSP）钠离子电池的晶界来提高离子电导率，采用两步固相反应法制备了由NZSP陶瓷和不同比例的35Na2O-5Cr2O3-30TiO2-30P2O5 （NCTP）玻璃组成的复合电解质，并研究了玻璃添加剂对复合电解质结构和物理性能的影响。在NZSP/NCTP复合材料的烧结过程中，NCTP玻璃渗透到晶界并转移到玻璃陶瓷上。NZSP陶瓷与ntp玻璃陶瓷相之间存在传质反应，玻璃作为助烧结剂促进液相烧结过程。由于晶界玻璃的注入和复合材料的致密性，玻璃的加入使复合电解质的密度、收缩率、硬度和弹性模量增加，而延性下降，弹性恢复能力反而增加。玻璃入渗促进晶界电导率的提高，但不同程度地降低了晶粒体积电导率。当ntp玻璃添加量为5 wt%时，NZSP具有最佳的体导电性和最小的活化能。适当添加玻璃是提高NACICON型全固态钠离子电池电解质性能的一种简便方法。

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Effects of addition of sodium titanophosphate glass on structure and physical properties of Na3Zr2Si2PO12/glass-ceramic solid composite electrolytes

To enhance ionic conductivity through modifying grain boundary of NACICON typed all-solid-state Na₃Zr₂Si₂PO₁₂ (NZSP) for sodium ion battery, composite electrolyte consisting of NZSP ceramic and varied percentage of 35Na₂O-5Cr₂O₃-30TiO₂-30P₂O₅ (NCTP) glass were prepared by two-step solid-phase reaction and the effects of glass additive on the structure and physical properties of the composite electrolyte were investigated. The NCTP glass was infiltrated into the grain boundary and was transferred to glass-ceramic during sintering NZSP/NCTP composites. There exists mass transfer reaction between the NZSP ceramic and the NCTP glass-ceramic phase that glass as the sintering aid promotes the liquid phase sintering process. The density, shrinkage percentage as well as hardness, elastic modulus of the composite electrolytes increase whereas ductility declines and instead elastic recover capacity increases upon glass addition due to glass infusion in grain boundary and the composite compactness. Glass infiltration promotes conductivity of grain boundary at the cost of reduction in grain bulk conductivity to varying degree. NZSP added with 5 wt% NCTP glass exhibits the best bulk conductivity and the minimum activation energy. Proper glass addition can be a facile approach to enhance the properties of NACICON typed electrolyte for all-solid-state sodium ion battery application.

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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.