Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
AQUEOUS SECONDARY BATTERY USING CARBON DIOXIDE AND COMPLEX SYSTEM HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2019/156415
Kind Code:
A1
Abstract:
The present technology relates to an aqueous secondary battery and, more specifically, provides: an aqueous secondary battery using carbon dioxide, which is a greenhouse gas; and a complex system having same. According to the present technology, all of the foregoing objectives of the present technology can be achieved. Specifically, a sodium metal is used as an electrode for an anode part, and carbon dioxide is supplied to an aqueous electrolyte in which an electrode for a cathode part is immersed, so that sodium ions move from the electrode for the anode part through an electrolyte and react with the carbon dioxide in the aqueous electrolyte to produce hydrogen and sodium hydrogen carbonate, thereby generating electricity. In addition, a carbon dioxide treatment part for preventing the supply of carbon dioxide undissolved in the aqueous electrolyte to the cathode part is provided, so that high-purity hydrogen can be produced in the cathode part at the time of discharge. Furthermore, the carbon dioxide undissolved in the aqueous electrolyte is separated by the carbon dioxide treatment part and re-supplied by a carbon dioxide circulation supply part, leading to efficiency improvement.

Inventors:
KIM, Guntae (50 UNIST-gil, Eonyang-eupUlju-gun, Ulsan, 44919, KR)
KIM, Changmin (50 UNIST-gil, Eonyang-eupUlju-gun, Ulsan, 44919, KR)
KIM, Jeongwon (50 UNIST-gil, Eonyang-eupUlju-gun, Ulsan, 44919, KR)
SHIN, Jeeyoung (5-801, 147 Yangnyeongsi-ro,Dongdaemun-gu, Seoul, 02489, KR)
Application Number:
KR2019/001270
Publication Date:
August 15, 2019
Filing Date:
January 30, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
UNIST(ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY) (50 UNIST-gil, Eonyang-eupUlju-gun, Ulsan, 44919, KR)
SOOKMYUNG WOMEN'S UNIVERSITY INDUSTRY-ACADEMIC COOPERATION FOUNDATION (100 Cheongpa-ro 47-gil, Yongsan-gu, Seoul, 04310, KR)
International Classes:
H01M12/08; H01M4/38; H01M4/90; H01M4/92; H01M8/0612; H01M8/0656; H01M16/00
Foreign References:
KR20150091984A2015-08-12
JP2014165056A2014-09-08
US20170137951A12017-05-18
KR20110099587A2011-09-08
KR20150020463A2015-02-26
Attorney, Agent or Firm:
ISIS IP LAW LLC (8F. 14, Teheran-ro 63-gilGangnam-gu, Seoul, 06160, KR)
Download PDF: