金属阳离子对Li7P3S10.7Br0.3硫化固态电解质电导率和界面稳定性的影响

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY

Chalcogenide Letters Pub Date : 2023-05-01 DOI:10.15251/cl.2023.204.301

J. -. Zhou, S. Cao, X. Li, C. Shen, M. Cong

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引用次数: 0

摘要

硫化物固体电解质的发展受到与锂金属界面不稳定和离子电导率低的限制。本工作系统地研究了掺杂SiS2、SnS、ZnS和MnS对硫化物电解质的离子导电性和界面稳定性的影响。Li7P2.9Sn0.1S10.7Br0.3固体电解质的电导率高达1.67mS cm-1。此外，还发现临界电流密度与掺杂元件的电阻率成正比。电子绝缘硅掺杂显著提高了电解质的临界电流密度，达到0.858mAcm-2。

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Effect of metal cations on the conductivity and interfacial stability of Li7P3S10.7Br0.3 sulfide solid-state electrolytes

The development of sulfide solid electrolyte is limited by the interface instability with lithium metal and low ionic conductivity. In this work, the effects of doping SiS2, SnS, ZnS and MnS on the ionic conductivity and interfacial stability of sulfide electrolytes are systematically investigated. The conductivity of Li7P2.9Sn0.1S10.7Br0.3 solid electrolyte was as high as 1.67 mS cm-1 . Furthermore, it is found that the critical current density was proportional to the resistivity of the doping element. The critical current density of the electrolyte was significantly increased by electronically insulating Si doping, reaching 0.858 mA cm-2 .

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来源期刊

Chalcogenide Letters MATERIALS SCIENCE, MULTIDISCIPLINARY-PHYSICS, APPLIED

CiteScore

1.80

自引率

20.00%

发文量

审稿时长

1 months

期刊介绍： Chalcogenide Letters (CHL) has the aim to publish rapidly papers in chalcogenide field of research and appears with twelve issues per year. The journal is open to letters, short communications and breakings news inserted as Short Notes, in the field of chalcogenide materials either amorphous or crystalline. Short papers in structure, properties and applications, as well as those covering special properties in nano-structured chalcogenides are admitted.