23-03-2017 дата публикации
Номер: KR101718880B1
The present invention relates to a method for preparing a lithium (Li)-lanthanum (La)-zirconium (Zr)-based solid electrolyte, comprising the following steps: adding a first lithium source to a La-Zr precursor and primarily thermally treating the same, and preparing a first Li-La-Zr-based precursor; adding a second lithium source to the Li-La-Zr-based precursor, secondarily thermally treating the same, and preparing a second Li-La-Zr-based precursor; and sintering the second Li-La-Zr-based precursor and producing a solid electrolyte including a Li-La-Zr-based composite oxide. According to the present invention, physical processability and electrical properties (especially, ion conductivity) can be improved. COPYRIGHT KIPO 2017 (AA) La-Zr precursor (BB) First heat treatment (CC) First crushing (DD) Secondary heat treatment (EE) Second crushing (FF) Pelletizing (GG) Sintering (HH) Solid electrolyte including Li-La-Zr-based oxide (II) First lithium source (JJ) Second lithium source ...
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