https://scholars.lib.ntu.edu.tw/handle/123456789/636497
標題: | Understanding the Positive Effect of LATP in Polymer Electrolytes in All-Solid-State Lithium Batteries | 作者: | Breuer, Ortal Peta, Gayathri Elias, Yuval Alon-Yehezkel, Hadas Weng, Yu Ting Fayena-Greenstein, Miryam NAE-LIH WU Levi, Mikhael D. Aurbach, Doron |
公開日期: | 1-一月-2023 | 卷: | 170 | 期: | 9 | 來源出版物: | Journal of the Electrochemical Society | 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||LiFePO4 batteries with 30 wt% of LATP embedded in PEO20: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. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/636497 | ISSN: | 00134651 | DOI: | 10.1149/1945-7111/acf482 |
顯示於: | 化學工程學系 |
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