Title:
POSITIVE ELECTRODE MATERIAL, POSITIVE ELECTRODE AND SODIUM-ION BATTERY COMPRISING SAME, AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/040338
Kind Code:
A1
Abstract:
The present invention relates to a positive electrode material, a positive electrode and sodium-ion battery comprising same, and a preparation method therefor, for enhancing the battery characteristics of a sodium-ion battery. The present invention provides: a method for preparing a positive electrode material; a positive electrode material prepared using the preparation method; a positive electrode; and a sodium-ion battery. The method comprises: adding a conductive polymer to a Prussian white solution; applying ultrasound to the Prussian white solution to which the conductive polymer is added to disperse the solution; subjecting the dispersed solution to sputtering at high temperature to coat the surface of Prussian white with the conductive polymer; and removing a solvent from the Prussian white solution, followed by vacuum drying, to prepare a positive electrode material in which the surface of Prussian white is coated with the conductive polymer.
Inventors:
JEONG GOOJIN (KR)
CHO WOO SUK (KR)
PYUN KYUHO (KR)
CHO WOO SUK (KR)
PYUN KYUHO (KR)
Application Number:
PCT/KR2018/009984
Publication Date:
February 27, 2020
Filing Date:
August 29, 2018
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
H01M4/36; C23C14/12; C23C14/34; C23C14/58; H01M4/58; H01M4/60; H01M4/62; H01M10/054
Foreign References:
| KR20170098529A | 2017-08-30 | |||
| KR20140119250A | 2014-10-10 | |||
| CN107611404A | 2018-01-19 | |||
| US20170301922A1 | 2017-10-19 | |||
| KR20170003305A | 2017-01-09 |
Attorney, Agent or Firm:
PARK, Chonghan (KR)
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