Title:
全固体リチウム二次電池用固体電解質の製造方法
Document Type and Number:
Japanese Patent JP6739523
Kind Code:
B2
Abstract:
Disclosed is a method of preparing a solid electrolyte, which includes (a) preparing a solid electrolyte precursor slurry by subjecting a mixed solution including a metal precursor solution, containing a lanthanum precursor, a zirconium precursor and an aluminum precursor, a complexing agent, and a pH controller to coprecipitation, (b) preparing a solid electrolyte precursor by washing and drying the solid electrolyte precursor slurry, (c) preparing a mixture by mixing the solid electrolyte precursor with a lithium source, and (d) preparing an aluminum-doped lithium lanthanum zirconium oxide (LLZO) solid electrolyte by calcining the mixture, and which is also capable of adjusting the aluminum content of a starting material to thus control sintering properties and of adjusting the composition of a precursor and a lithium source to thus control the crystal structure, thereby improving the ionic conductivity of the solid electrolyte.
Inventors:
Kim sung
Kim, Min Young
Yang, Song Hyun
Rim, gin sub
Chang, Dakrai
Lee
Kim, Min Young
Yang, Song Hyun
Rim, gin sub
Chang, Dakrai
Lee
Application Number:
JP2018514417A
Publication Date:
August 12, 2020
Filing Date:
August 23, 2016
Export Citation:
Assignee:
TDL CO.,LTD.
International Classes:
H01B13/00; C01G25/00; C01G25/02; C04B35/486; C04B35/50; H01B1/06; H01B1/08; H01M10/0562
Domestic Patent References:
| JP2012224520A | ||||
| JP2013256435A | ||||
| JP2013184848A |
Foreign References:
| WO2015002410A1 | ||||
| KR1020140083854A | ||||
| WO2015163152A1 |
Attorney, Agent or Firm:
Kiyoji Kuzuwa