Title:
CATHODE ACTIVE MATERIAL USING POROUS CARBON STRUCTURE, PREPARATION METHOD THEREFOR, AND SODIUM-SULFUR DIOXIDE SECONDARY BATTERY HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2016/043442
Kind Code:
A1
Abstract:
The present invention relates to a cathode active material using a porous carbon structure, a preparation method therefor, and a sodium-sulfur dioxide (Na-SO2) secondary battery having the same. The sodium-sulfur dioxide secondary battery according to the present invention comprises: an anode made of an inorganic material containing sodium; a cathode comprising, as a cathode active material, a porous carbon structure synthesized by using, as precursors, sucrose and a colloidal silica (nano-silica) having a pore size of 20 nm or less; and a sulfur dioxide-based inorganic electrolyte solution containing an inorganic liquid electrolyte containing sulfur dioxide (SO2) and a sodium salt. The cathode active material synthesized by using sucrose and a colloidal silica as precursors can be improved in specific surface area and porosity compared with a conventional porous carbon material.
Inventors:
PARK MINSIK (KR)
KIM YOUNGJUN (KR)
KIM YOUNGKWON (KR)
YIM TAEEUN (KR)
JEONG GOOJIN (KR)
JO YONGNAM (KR)
KIM YOUNGJUN (KR)
KIM YOUNGKWON (KR)
YIM TAEEUN (KR)
JEONG GOOJIN (KR)
JO YONGNAM (KR)
Application Number:
PCT/KR2015/008805
Publication Date:
March 24, 2016
Filing Date:
August 24, 2015
Export Citation:
Assignee:
KOREA ELECTRONICS TECHNOLOGY (KR)
International Classes:
H01M4/133; H01M10/39
Foreign References:
| JP2011525468A | 2011-09-22 | |||
| KR20090097443A | 2009-09-16 | |||
| JP2012160437A | 2012-08-23 | |||
| KR20130039528A | 2013-04-22 | |||
| KR20130125600A | 2013-11-19 |
Attorney, Agent or Firm:
PARK, Chonghan (KR)
박종한 (KR)
박종한 (KR)
Download PDF: