US 12,288,850 B2
Electrochemical cell including a greenhouse gas
Jangwoo Kim, San Marcos, TX (US)
Assigned to WATTRII, INC., Cedar Park, TX (US)
Filed by Jangwoo Kim, San Marcos, TX (US)
Filed on May 3, 2021, as Appl. No. 17/306,457.
Prior Publication US 2022/0352537 A1, Nov. 3, 2022
Int. Cl. H01M 10/36 (2010.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 4/62 (2006.01); H01M 4/66 (2006.01); H01M 10/42 (2006.01); H01M 4/60 (2006.01); H01M 10/02 (2006.01)
CPC H01M 10/36 (2013.01) [H01M 4/38 (2013.01); H01M 4/583 (2013.01); H01M 4/624 (2013.01); H01M 4/625 (2013.01); H01M 4/662 (2013.01); H01M 10/4235 (2013.01); H01M 4/60 (2013.01); H01M 10/02 (2013.01); H01M 2300/0002 (2013.01); H01M 2300/0025 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An electrochemical cell, comprising:
a positive electrode comprising a current collector in electrical contact with a cathode active material layer comprising a cathode active material and an electrically-conductive material, wherein the cathode active material includes a metal or a metal complex, where the metal is lithium, sodium, potassium, beryllium, magnesium, calcium, vanadium, iron, nickel, copper, zinc, or aluminum; and wherein the electrically-conductive material includes one or more porous inorganic carbon materials selected from the group consisting of carbon black, carbon nanotubes, carbon nanofibers, carbon dots, activated carbon, graphite, graphene, graphene oxide, and graphene nanoribbons;
an electrolyte solution comprising a first electrolytic solvent selected from the group consisting of water and a nitrogenous organic compound;
a negative electrode comprising an anode active material layer comprising an anode active material that includes a metal or a metal complex, where the metal is lithium, sodium, potassium, beryllium, magnesium, calcium, vanadium, iron, nickel, copper, zinc, or aluminum; the negative electrode being separated from the positive electrode by the electrolyte solution, and
a housing that encloses the positive electrode, the negative electrode, and the electrolyte solution under a gaseous atmosphere, wherein the gaseous atmosphere includes a greenhouse gas;
wherein the current collector is in electrical contact with the positive electrode and is positioned on a side of the positive electrode opposite the electrolyte solution, the electrolyte solution is in contact with the positive electrode, and the cathode electrode active material has a solubility of at least 0.01 M in the first electrolytic solvent.