文献类型：期刊文献

英文题名：Electrochemical properties of LATP ceramic electrolyte doped with LiBiO3 sintering additive and its derived sandwich structure composite solid electrolyte

作者：Zou, Kun Cai, Zehua Ke, Xiang Wang, Keliang Tan, Xiaoqing Luo, Dandan Huang, Fang Wang, Chengyan Cheng, Jinke Xiao, Rengui

第一作者：Zou, Kun

机构：[1] School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, China; [2] Collaborative Innovation Center of Guizhou Province for Efficient Utilization of Phosphorus and Fluorine Resources, Guizhou University, Guizhou, Guiyang, 550025, China; [3] Guizhou Institute of Technology, Guiyang, China; [4] University of Science and Technology Beijing, Beijing, China

第一机构：School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, China

通信机构：School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, China;School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, 550025, China

年份：2023

卷号：29

期号：7

起止页码：2665-2678

外文期刊名：Ionics

收录：EI(收录号：20232314191670);Scopus(收录号：2-s2.0-85160949430)

语种：英文

外文关键词：Additives - Aluminum compounds - Grain growth - Lithium batteries - Sandwich structures - Sintering - Solid electrolytes - Solid state devices - Solid-State Batteries - Sols - Titanium compounds

摘要：To improve the sinterability, a new LATP-x wt% LiBiO3 composite solid electrolyte was fabricated by adding LiBiO3 to a NASICON-type Li1.5Al0.5Ti1.5(PO4)3 (LATP) solid electrolyte synthesized by the sol–gel method. The results showed that the liquid phase formed by the LiBiO3 additive promoted grain growth during the sintering process, which led to structural stability and an increased relative density of LATP. When the LiBiO3 addition amount was 2 wt%, the relative density was 94%, and the bulk ionic conductivity was 2.91 × 10?4 S cm?1. In addition, to improve the interfacial instability between the solid electrolyte and lithium metal, we prepared a PPS/LATP-LiBiO3/PPS composite solid electrolyte with a sandwich structure using a polymer PVDF-HFP-PEO-SN (PPS) cladding method to construct an LFP/SSCEs/Li all-solid-state battery. The electrical property test results showed that the all-solid-state battery still had 92% discharging capacity and nearly 100% coulombic efficiency after 50 cycles at 25?°C and 0.1 C. ? 2023, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.