Tape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12 with Li3BO3 additions

被引:47
|
作者
Jonson, Robert A. [1 ]
McGinn, Paul J. [1 ]
机构
[1] Univ Notre Dame, Dept Chem & Biomol Engn, Notre Dame, IN 46556 USA
关键词
Solid-state battery; Solid electrolyte; Li7La3Zr2O12; Tape casting; Sintering aid; LOW-TEMPERATURE SYNTHESIS; LITHIUM ION-TRANSPORT; GARNET-TYPE OXIDE; SOLID ELECTROLYTES; COMPOSITE ELECTROLYTE; LI+ CONDUCTIVITY; BATTERIES; DENSIFICATION; FABRICATION; CATHODE;
D O I
10.1016/j.ssi.2018.05.015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
An approach for tape casting and sintering of Li7La3Zr1.75Nb0.25Al0.1O12 (LLZNbO) sheets suitable for use in solid-state battery development is described. The use of Li3BO3 as a sintering aid in both pellet and cast tape samples is examined. We find the optimal Li3BO3 content for ionic conductivity in pellets is between 1 and 2 wt% Li3BO3, much less than in prior reports. At this level, ionic conductivity is similar to 2.5 x 10(-4) S cm(-1) after sintering in an argon atmosphere at 1000 degrees C for 6 h. 150-175 micron thick LLZNbO + 0.5% Li3BO3 tapes sintered at 1000 degrees C for 6 h exhibit ionic conductivity values of 2-3 x 10(-4) S cm(-1).
引用
收藏
页码:49 / 55
页数:7
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