电解质
材料科学
离子电导率
陶瓷
阴极
电极
聚合物
锂(药物)
化学工程
电导率
快离子导体
电阻抗
复合材料
化学
电气工程
物理化学
医学
工程类
内分泌学
作者
Ortal Breuer,Gayathri Peta,Yuval Elias,Hadas Alon-Yehezkel,Yu‐Ting Weng,Miryam Fayena‐Greenstein,Nae‐Lih Wu,Mikhael D. Levi,Doron Aurbach
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-09-01
卷期号:170 (9): 090509-090509
被引量:2
标识
DOI:10.1149/1945-7111/acf482
摘要
Composite solid electrolytes with ceramic particles dispersed in a polymer matrix are considered a correct choice for all-solid-state batteries. These electrolytes balance the high ionic conductivity of superionic-ceramic conductors and the elasticity of polymers. Here, Li||LiFePO 4 batteries with 30 wt% of LATP embedded in PEO 20 :LiTFSI show superior performance at elevated temperature. After ∼150 cycles, cells retained 84% of their original capacity compared to only 51% for batteries with no additive. At 5 C cells demonstrate 43% higher capacity. In symmetric cells with blocking and non-blocking electrodes and all-solid-state batteries LATP lowers the impedance of the electrode-electrolyte interface ensuring cycling stability. LATP improves performance by stabilization of the cathode-electrolyte interface, apparently the major contributor to the cell impedance.
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