Synthesis of LiBaZrOx ceramics with a core-shell structure
Synthesis of LiBaZrOx ceramics with a core-shell structure
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DOI：
10.1016/j.ceramint.2019.11.090
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发表时间：
2020-04
影响因子：
5.2
通讯作者：
M. Zdorovets;A. Arbuz;A. Kozlovskiy
中科院分区：
文献类型：
--
作者：
M. Zdorovets;A. Arbuz;A. Kozlovskiy
注释本文介绍了通过固相合成获得的LiZrBaOx型钙钛矿陶瓷的相组成、结构性能和适用性的研究结果。根据X射线物相分析、测绘和TEM图像数据，确定陶瓷结构由核壳颗粒组成，其中ZrO2相为核，ZrBa2O4和Zr2Li6O7相为双壳，其中一层是无序的Zr2Li6O7壳。结构中三相的存在导致晶体结构足够强的扭曲及其变形。在研究过程中，建立了使用基于LiZrBaOx的陶瓷作为锂离子电池正极材料基础的前景。
AnnotationThe paper presents the results of a study of the phase composition, structural properties, and applicability of perovskite-like ceramics of the LiZrBaOxtype obtained by solid-phase synthesis. According to the data of X-ray phase analysis, mapping, and TEM images, it was established that the ceramic structure consists of core-shell particles where the ZrO2phase acts as the core, and the ZrBa2O4and Zr2Li6O7phases are a double shell, one of which is the disordered Zr2Li6O7shell. The presence of three phases in the structure leads to a sufficiently strong distortion of the crystalline structure, as well as its deformation. In the course of the research, the prospects of using ceramics based on LiZrBaOxas the basis for the cathode materials of lithium-ion batteries were established.