US 11,916,253 B2
Electrolyte membrane for lithium-air battery, method of manufacturing same and lithium-air battery comprising same
Eun Ji Kwon, Gyeonggi-do (KP); Samuel Seo, Gyeonggi-do (KR); Gwang Seok Oh, Gyeonggi-do (KR); Seok Ju Kang, Ulsan (KR); and Kyung Eun Baek, Ulsan (KR)
Assigned to Hyundai Motor Company, Seoul (KR); Kia Corporation, Seoul (KR); and Ulsan National Institute of Science and Technology, Ulsan (KR)
Filed by Hyundai Motor Company, Seoul (KR); Kia Motors Corporation, Seoul (KR); and Ulsan National Institute of Science and Technology, Ulsan (KR)
Filed on Dec. 21, 2020, as Appl. No. 17/129,155.
Claims priority of application No. 10-2020-0066555 (KR), filed on Jun. 2, 2020.
Prior Publication US 2021/0376424 A1, Dec. 2, 2021
Int. Cl. H01M 50/466 (2021.01); H01M 12/08 (2006.01); H01M 50/403 (2021.01); H01M 4/583 (2010.01); H01M 4/38 (2006.01); H01M 50/446 (2021.01)
CPC H01M 50/446 (2021.01) [H01M 4/382 (2013.01); H01M 4/583 (2013.01); H01M 12/08 (2013.01); H01M 50/403 (2021.01)] 1 Claim
OG exemplary drawing
 
1. A method of manufacturing an electrolyte membrane for a lithium-air battery, comprising:
preparing an inorganic salt;
preparing an inorganic melt admixture comprising the inorganic salt;
immersing a separator in the inorganic melt admixture; and
drying the immersed separator,
wherein the inorganic salt comprises:
three types of nitrogen-oxide compounds, four types of nitrogen-oxide compounds, or five types of nitrogen-oxide compounds,
wherein the three types of the nitrogen-oxide compounds comprise an amount of about 29 mol % to 35 mol % of lithium nitrate, an amount of about 51 mol % to 56 mol % of potassium nitrite and an amount of about 10 mol % to 15 mol % of cesium nitrate,
the four types of the nitrogen-oxide compounds comprise an amount of about 27 mol % to 31 mol % of lithium nitrate, an amount of about 38 mol % to 50 mol % of potassium nitrate, an amount of about 11 mol % to 20 mol % of sodium nitrate and an amount of about 10 mol % to 13 mol % of calcium nitrate, and
the five types of the nitrogen-oxide compounds comprise an amount of about 14 mol % to 17 mol % of lithium nitrate, an amount of about 29 mol % to 31 mol % of potassium nitrate, an amount of about 28 mol % to 32 mol % of cesium nitrate, an amount of about 9 mol % to 11 mol % of sodium nitrate and an amount of about 13 mol % to 18 mol % of calcium nitrate,
all the mol % based on the total mole of the nitrogen-oxide compounds.