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High-entropy garnet type oxide solid electrolyte material and preparation method thereof
The invention belongs to the technical field of lithium batteries, and particularly relates to a high-entropy garnet type oxide solid electrolyte material and a preparation method thereof.The high-entropy concept is introduced into an oxide solid electrolyte, the configuration entropy of a material body is increased through lattice distortion, and formation of a stable phase is promoted; and the problems of low ionic conductivity and the like of the oxide solid electrolyte are effectively solved. Through doping of heterovalent ions, Li < + > in the structure can be replaced, Li vacancies are generated, the diffusion energy barrier of Li < + > is remarkably reduced, and the ionic conductivity of the material is further improved.
本发明属于锂电池技术领域，具体为一种高熵石榴石型氧化物固态电解质材料及其制备方法，将“高熵”概念引入到氧化物固态电解质中，利用晶格畸变增加材料本体的构型熵，促进稳定相的形成，有效克服氧化物固态电解质离子电导率低等问题。通过异价离子的掺杂，可以替代结构内部的Li+，产生Li空位显著降低Li+的扩散能垒，进一步提高材料的离子电导率。
High-entropy garnet type oxide solid electrolyte material and preparation method thereof
The invention belongs to the technical field of lithium batteries, and particularly relates to a high-entropy garnet type oxide solid electrolyte material and a preparation method thereof.The high-entropy concept is introduced into an oxide solid electrolyte, the configuration entropy of a material body is increased through lattice distortion, and formation of a stable phase is promoted; and the problems of low ionic conductivity and the like of the oxide solid electrolyte are effectively solved. Through doping of heterovalent ions, Li < + > in the structure can be replaced, Li vacancies are generated, the diffusion energy barrier of Li < + > is remarkably reduced, and the ionic conductivity of the material is further improved.
本发明属于锂电池技术领域，具体为一种高熵石榴石型氧化物固态电解质材料及其制备方法，将“高熵”概念引入到氧化物固态电解质中，利用晶格畸变增加材料本体的构型熵，促进稳定相的形成，有效克服氧化物固态电解质离子电导率低等问题。通过异价离子的掺杂，可以替代结构内部的Li+，产生Li空位显著降低Li+的扩散能垒，进一步提高材料的离子电导率。
High-entropy garnet type oxide solid electrolyte material and preparation method thereof
一种高熵石榴石型氧化物固态电解质材料及其制备方法
CUI HENG (author) / YU WENWEN (author) / GAO JUN (author) / FAN LIFENG (author) / WANG RUDONG (author) / LIU JINRUI (author) / WANG ZHENDONG (author) / LU YAO (author) / ZHAO ZHENGZHI (author) / SU LAN (author)
2024-12-27
Patent
Electronic Resource
Chinese
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