Borophosphate Glass Based Electrolyte Composite for High Lithium Ionic Conductivity

IF 5.8 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Journal of Alloys and Compounds Pub Date : 2024-10-20 DOI:10.1016/j.jallcom.2024.177160

Abdelhak Chouiekh, Nour El Hoda Bouftila, Sara Aqdim, Lahcen Bih, Yahya Ababou, Abdellah Tahiri, Abdelilah Rjeb, Abdessamad Faik, Mohamed Naji

{"title":"Borophosphate Glass Based Electrolyte Composite for High Lithium Ionic Conductivity","authors":"Abdelhak Chouiekh, Nour El Hoda Bouftila, Sara Aqdim, Lahcen Bih, Yahya Ababou, Abdellah Tahiri, Abdelilah Rjeb, Abdessamad Faik, Mohamed Naji","doi":"10.1016/j.jallcom.2024.177160","DOIUrl":null,"url":null,"abstract":"The application requirements of solid-state lithium (Li) metal batteries are satisfied by the ionic conductivity of composite solid-state electrolytes, attributed to their minimal interfacial resistance. Herein, composite solid electrolytes were obtained by mixing a crystalline Li0.5La0.5TiO3 (LLTO) perovskite with different amount of 47Li2O-30B2O3-23P2O5 (LBP) glass phase. The results show that the crystal phase of the composite samples exhibit a tetragonal perovskite structure with a P4/mmm space group. Frequency dependent AC conductivity shows that composite containing 1% LBP glass avoids the phenomenon of charge carrier blocking at low frequency and low temperature at the same time. The room temperature maximum total ionic conductivity was obtained for sample with 0.5% LBP glass presenting a conductivity that is almost three times higher than that of pure LLTO. The factors influencing ionic conductivity are not only grain morphology and size, and activation energy, but also lithium content, and entropic effects contribute to the facility or difficulty with which Li+ can migrate into the LLTO solid electrolyte.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":null,"pages":null},"PeriodicalIF":5.8000,"publicationDate":"2024-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Alloys and Compounds","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1016/j.jallcom.2024.177160","RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}

引用次数: 0

Abstract

The application requirements of solid-state lithium (Li) metal batteries are satisfied by the ionic conductivity of composite solid-state electrolytes, attributed to their minimal interfacial resistance. Herein, composite solid electrolytes were obtained by mixing a crystalline Li_0.5La_0.5TiO₃ (LLTO) perovskite with different amount of 47Li₂O-30B₂O₃-23P₂O₅ (LBP) glass phase. The results show that the crystal phase of the composite samples exhibit a tetragonal perovskite structure with a P4/mmm space group. Frequency dependent AC conductivity shows that composite containing 1% LBP glass avoids the phenomenon of charge carrier blocking at low frequency and low temperature at the same time. The room temperature maximum total ionic conductivity was obtained for sample with 0.5% LBP glass presenting a conductivity that is almost three times higher than that of pure LLTO. The factors influencing ionic conductivity are not only grain morphology and size, and activation energy, but also lithium content, and entropic effects contribute to the facility or difficulty with which Li⁺ can migrate into the LLTO solid electrolyte.

查看原文本刊更多论文

基于磷酸硼玻璃的高锂离子传导性复合电解质

复合固态电解质的离子导电性能满足了固态锂（Li）金属电池的应用要求，这归功于其最小的界面电阻。本文通过将结晶锂0.5La0.5TiO3（LLTO）包晶石与不同量的47Li2O-30B2O3-23P2O5（LBP）玻璃相混合，得到了复合固态电解质。结果表明，复合样品的晶体相为四方包晶结构，空间群为 P4/mmm。与频率相关的交流电导率表明，含有 1%枸杞多糖玻璃的复合材料可同时避免低频和低温下的电荷载流子阻滞现象。含有 0.5% LBP 玻璃的样品获得了室温最大总离子电导率，其电导率几乎是纯 LLTO 的三倍。影响离子电导率的因素不仅包括晶粒形态、尺寸和活化能，还包括锂含量以及熵效应，这些因素决定了 Li+ 能否顺利迁移到 LLTO 固体电解质中。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Journal of Alloys and Compounds 工程技术-材料科学：综合

CiteScore

11.10

自引率

14.50%

发文量

5146

审稿时长

67 days

期刊介绍： The Journal of Alloys and Compounds is intended to serve as an international medium for the publication of work on solid materials comprising compounds as well as alloys. Its great strength lies in the diversity of discipline which it encompasses, drawing together results from materials science, solid-state chemistry and physics.