METHOD FOR PREPARING CERAMIC SOLID ELECTROLYTE FOR LITHIUM SECONDARY BATTERY

Title:

METHOD FOR PREPARING CERAMIC SOLID ELECTROLYTE FOR LITHIUM SECONDARY BATTERY

Document Type and Number:

WIPO Patent Application WO/2019/194454

Kind Code:

A3

Abstract:

The present invention relates to a method for preparing a ceramic solid electrolyte having a uniform particle distribution, excellent crystallinity, and high ionic conductivity. A first step for preparing ceramic solid electrolyte particles can be a step for adding a raw material to distilled water and mixing the raw material and the distilled water to prepare a solid electrolyte precursor. A second step can be a step for mixing the solid electrolyte precursor by means of a ball-mill. A third step can be an additional step for primarily drying by spin-concentrating or spraying. A fourth step can be a step for conducting secondary drying in a drying device for at least 24 hours at 80°C to completely remove the distilled water solvent. A fifth step can be a step for primarily calcining ceramic particles in a heat treatment device and secondarily firing the ceramic particles in the heat treatment device.

More Like This:

JP7041814	Positive electrode active material pre-dispersion composition, positive electrode for secondary battery, and lithium secondary battery containing it
JP6543827	Evaluation method of positive electrode material for lithium ion secondary battery, positive electrode for lithium ion secondary battery, positive electrode material for lithium ion secondary battery, positive electrode material for lithium ion secondary battery

Inventors:

SON JUNG WOO (KR)
SON JI WON (KR)
KIM JAE KWANG (KR)

Application Number:

PCT/KR2019/003528

Publication Date:

December 12, 2019

Filing Date:

March 27, 2019

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SEVEN KING ENERGY CO LTD (KR)

International Classes:

C01B25/45; H01M10/0562; H01M10/052

Foreign References:

KR20160135367A	2016-11-25
JP2015202998A	2015-11-16
KR101383356B1	2014-04-14
JPH07109175A	1995-04-25

Other References:

ZHAO ET AL.: "Stable LATP/LAGP double-layer solid electrolyte prepared via a simple dry-pressing method for solid state lithium ion batteries", RSC ADVANCES, 2016, pages 92579 - 92585, XP055661107

Attorney, Agent or Firm:

KANGIN PATENT LAW FIRM (KR)

Download PDF:

View/Download PDF PDF Help

Previous Patent: WATER PURIFIER AND METHOD FOR CONTROLLING THE SAME

Next Patent: APPARATUS AND METHOD FOR RECOGNIZING OBJECT IN IMAGE