井冈山大学学报（自然科学版）2026，Vol.47Issue(2)：31-38,8.DOI:10.3969/j.issn.1674-8085.2026.02.004
烧结温度对LATP复合固态电解质微观结构及电池性能的影响
Impact of sintering temperature on the microstructure and performance of LATP composite solid-state electrolytes
摘要
Abstract
As a high-performance inorganic solid-state electrolyte,the synthesis temperature of Li1+xAlxTi2-x(PO4)3(LATP)profoundly affects the structure and performance of the material.This study explores the influence of temperature regulation on the microstructure and battery performance of LATP composite solid-state electrolytes.By assembling LiFePO₄composite electrolyte Li solid-state batteries,their rate performance,charge-discharge performance,and cycle performance are evaluated.The results show that the LATP electrolytes synthesized at 850 ℃ exhibit the optimal comprehensive performance:after 60 cycles at a 0.1C rate,the Coulombic efficiency remains at 99.26%.The main reasons are as follows:the LATP synthesized at 850℃has the highest crystallinity,the least impurity phases,uniform particle size,an ionic conductivity as high as 2.21×10-4 S·cm-1,and an electrochemical stability window of up to 4.5 V(vs.Li+/Li).This study systematically reveals the structure-activity relationship between the LATP synthesis temperature and the macroscopic performance of the composite electrolyte,providing experimental and theoretical bases for the controllable preparation of high-performance composite solid-state electrolytes.关键词
LATP/合成温度/复合固态电解质/离子电导率/固态电池Key words
LATP/synthesis temperature/composite solid electrolyte/ionic conductivity/solid-state分类
信息技术与安全科学引用本文复制引用
陈旅阳,白国梁,魏旭晖,王春花,王佳杰,刘瑞恒,马倩婧..烧结温度对LATP复合固态电解质微观结构及电池性能的影响[J].井冈山大学学报（自然科学版）,2026,47(2):31-38,8.基金项目
国家自然科学基金青年科学基金项目(22402001) （22402001）
安徽省高校自然科学研究重大项目(2023AH040072) （2023AH040072）
