A study on PVDF-PEO-Li7La2.5Ce0.5Zr1.625Bi0.3O12 solid electrolyte with high ionic conductivity and its application in solid-state batteries

被引：0

作者：

Wang, Jing ^{[1
]}

Li, Xin ^{[2
]}

Wang, Xinlu ^{[1
]}

Su, Yang ^{[1
]}

Liu, Guixia ^{[1
]}

Yu, Wensheng ^{[1
]}

Dong, Xiangting ^{[1
]}

Wang, Jinxian ^{[1
,2
]}

机构：

[1] Changchun Univ Sci & Technol, Sch Chem & Environm Engn, Changchun 130022, Peoples R China

[2] Jilin Junfan Sulfides Mat Technol Co Ltd, Changchun 130022, Peoples R China

来源：

NEXT MATERIALS | 2025年 / 7卷

关键词：

LLZO; Doping; Ionic conductivity; Solid-state lithium batteries;

D O I：

10.1016/j.nxmate.2024.100360

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polymer/ceramic composite solid electrolyte is an effective solution for the development of flexible solid-state lithium metal batteries. In this paper, a solid-state lithium-ion electrolyte composed of ceramic powder Li7La2.5Ce0.5Zr1.625Bi0.3O12 (LLCZBO) and lithium salt LiTFSI is added to PVDF-PEO. With the addition of 20 wt% LLCZBO, the electrolyte has a high ionic conductivity of 3.67 x 10-4 S & sdot;cm-1 at room temperature. The lithium symmetric battery can be cycled for a long time at a current density of 0.1 mA & sdot;cm-2. The battery with LiNi0.6Co0.2Mn0.2O2 (NCM) as the cathode can be cycled at room temperature at 0.1 C and obtain high coulombic efficiency. The excellent cycle performance and rate capability can be attributed to the high ionic conductivity of LLCZBO. These advantages indicate that the composite solid electrolyte (CSE) membranes is expected to be a perfect electrolyte for the next generation of solid-state lithium batteries.

引用

页数：9

共 33 条

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