Title:
F-DOPED CARBON AIR ELECTRODE AND METHOD FOR MANUFACTURING LITHIUM-AIR BATTERY USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/116913
Kind Code:
A3
Abstract:
The present invention comprises: a step for manufacturing a cell using carbon paper as a cathode material, lithium metal as an anode, a separator therebetween, and an electrolyte containing a LiTFSI salt; and an F-doping step for doping the carbon paper with fluorine using a reduction reaction of LiTFSI, which is generated during discharging, in an inert atmosphere. According to the above technical feature, by generating a transfer path of oxygen ions on the surface of carbon through F-doping using an electrochemical reduction method and providing an additionally generated carboxyl group as a Li2O2 -producing site, there is an effect of manufacturing of a high-output and high-capacity lithium-air battery in which F-doped P50 exhibits a capacity per area of 30,000 µAh/cm2 or more, and Sp exhibits a capacity per weight of 200,000 mAh/g.
Inventors:
KANG JUNGWON (KR)
Application Number:
PCT/KR2019/016962
Publication Date:
July 23, 2020
Filing Date:
December 03, 2019
Export Citation:
Assignee:
UNIV NAT MOKPO IND ACAD COOP GROUP (KR)
International Classes:
H01M12/08; H01M4/96
Foreign References:
| KR20160107545A | 2016-09-19 | |||
| JP2015230801A | 2015-12-21 |
Other References:
KAKAEI, K. ET AL.: "Hierarchically porous fluorine-doped graphene nanosheets as efficient metal-free electrocatalysts for oxygen reduction in gas diffusion electrode", JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 490, 2017, pages 819 - 824, XP029876319, DOI: 10.1016/j.jcis.2016.12.011
AN, H. ET AL.: "Free-standing fluorine and nitrogen co-doped graphene paper as a high-performance electrode for flexible sodium-ion batteries", CARBON, vol. 116, 2017, pages 338 - 346, XP029945813, DOI: 10.1016/j.carbon.2017.01.101
LV , Y. ET AL.: "Nitrogen and Fluorine-codoped Porous Carbons as Efficient Metal-free Electrocatalysts for Oxygen Reduction Reaction in Fuel Cells", APPLIED MATERIALS & INTERFACES, vol. 9, no. 38, 2017, pages 32859 - 32867, XP055725337
AN, H. ET AL.: "Free-standing fluorine and nitrogen co-doped graphene paper as a high-performance electrode for flexible sodium-ion batteries", CARBON, vol. 116, 2017, pages 338 - 346, XP029945813, DOI: 10.1016/j.carbon.2017.01.101
LV , Y. ET AL.: "Nitrogen and Fluorine-codoped Porous Carbons as Efficient Metal-free Electrocatalysts for Oxygen Reduction Reaction in Fuel Cells", APPLIED MATERIALS & INTERFACES, vol. 9, no. 38, 2017, pages 32859 - 32867, XP055725337
Attorney, Agent or Firm:
YOON, Choonjoo (KR)
Download PDF: