不同比例LATP/SPE复合固态电解质与Li金属界面稳定性研究OA
Study on the interface stability between LATP/SPE composite solid electrolytes with different ratios and lithium metal
实验通过简易的浇筑法在PEO基的聚合物电解质(SPE)中分别添加质量分数为20%、50%、80%的Li1.3Al0.3Ti1.7(PO4)3<LATP>固态电解质粉末制备LATP/SPE复合固态电解质(CSEs).系统研究了不同比例构建的复合固态电解质的组织结构、离子电导率、杨氏模量以及复合固态电解质与Li金属的界面电化学性能.研究表明,在SPE中添加50%LATP固态电解质粉末构建的复合电解质膜具有较优的电化学性能,在0.5 mA/cm2电流密度下可稳定循环1 600 h,显著高于LATP添加量分别为0、20%、80%构建的复合电解质的循环性能.并深入揭示了不同比例复合固态电解质与Li金属的界面失效机理.
In this study,composite solid-state electrolytes(CSEs)were fabricated by incorporating 20%,50%,and 80%of Li1.3Al0.3Ti1.7(PO4)3<LATP>solid electrolyte powder into a poly(ethylene oxide)(PEO)-based solid polymer electrolyte(SPE)matrix via a solution casting method.The microstructural characteristics,ionic conductivity,Young's modulus,and interfacial electrochemical stability with lithium metal anodes of the LATP/SPE composite electrolytes were systematically investigated.Experimental results demonstrated that the CSE containing 50%LATP exhibited optimal electrochemical performance,achieving stable cycling for 1 600 h at a current density of 0.5 mA/cm².This performance significantly surpassed that of composites with 0,20%,and 80%LATP additions.Furthermore,the interfacial failure mechanisms between lithium metal and CSEs with varying LATP contents were thoroughly elucidated.
苏琼;钟盛文
江西理工大学材料冶金化学学部,江西 赣州 341000江西理工大学材料冶金化学学部,江西 赣州 341000
信息技术与安全科学
聚合物电解质LATP固态电解质有机-无机复合固态电解质锂金属循环稳定性
polymer electrolyteLATP solid electrolyteorganic-inorganic composite solid electrolytelithium metalcyclic stability
《有色金属科学与工程》 2026 (2)
245-257,13
低成本富锂锰基正极材料项目(TC220H06P)
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