Title:
全固体リチウムイオン電池用ガーネット型固体電解質焼結体の製造方法及び全固体リチウムイオン電池の製造方法
Document Type and Number:
Japanese Patent JP7365947
Kind Code:
B2
Abstract:
To provide a method for manufacturing a garnet type solid electrolyte sintered compact for an all-solid lithium ion battery, which can show a high ion conductivity without performing a sintering process at a high temperature (1000-1200°C).SOLUTION: A method for manufacturing a garnet type solid electrolyte sintered compact for an all-solid lithium ion battery, which is represented by the composition formula, Li7-3x+αLa3Zr2AlxO12-yLi3BO3 (where 0≤x<2, 1.1<(7-3x+α)/(7-3x)≤1.5 and 0.3≤y≤2.0) comprises: a pulverizing step of pulverizing calcination powder of a material represented by the composition formula, Li7-3x+αLa3Zr2AlxO12 so as to make an average particle diameter D50 1-10 μm; a sintering assistant-adding step of adding a lithium borate which makes a sintering assistant to powder thus pulverized; and a sintering step of performing a discharge-plasma sintering process on a solid electrolyte after addition of the sintering assistant in a range of 800°C or higher and below 1000°C.SELECTED DRAWING: None
Inventors:
Shoichi Yamamoto
Application Number:
JP2020048181A
Publication Date:
October 20, 2023
Filing Date:
March 18, 2020
Export Citation:
Assignee:
JX Nippon Mining & Metals Co., Ltd.
International Classes:
H01M10/0562; C04B35/50; H01B1/06; H01B1/08; H01B13/00; H01M10/052; H01M10/058
Domestic Patent References:
| JP2013184848A | ||||
| JP2015204215A | ||||
| JP2013107779A | ||||
| JP2017033926A | ||||
| JP2017188441A |
Attorney, Agent or Firm:
Axis International Patent Attorney Corporation
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