电解质
离子电导率
材料科学
电导率
阳极
快离子导体
烧结
相(物质)
钙钛矿(结构)
化学工程
兴奋剂
固溶体
电池(电)
无机化学
复合材料
冶金
化学
电极
物理化学
热力学
功率(物理)
物理
光电子学
有机化学
工程类
作者
Zhongkai Wu,Zhe Wu,Zihao Wang,Yilin Peng,Zijian Li,Zihao Huang,Wencen Mei,Dingbang Liu,Mingyang Li,Weiping Zhou,Fei Gao,Zhenzhi Cheng,Guangshen Luo
标识
DOI:10.1016/j.corsci.2023.111473
摘要
The poor interface incompatibility with Li anode and low ionic conductivity have hindered perovskite-type electrolyte's practical application. In this work, solid electrolytes of Li0.33La0.557TiO3 + x wt% Bi2O3 for solid state batteries were prepared by solid-phase sintering method. The ionic conductivity of LLTO reaches a maximum of 2.71 × 10–5 S·cm–1 at 1 wt% Bi2O3 doping. The critical current density of Li0.33La0.557TiO3 + 1 wt%Bi2O3 can reach 0.16 mA and still operate normally after 300 h of cycling. Li0.33La0.557TiO3 + 1 wt% Bi2O3 solid-state battery displays a high initial discharge capacity of 133.1 mAh/g and capacity retention of 98.0% after 40 cycles.
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