US 12,261,281 B2
Metal air electrochemical cell architecture
Jarrod David Milshtein, Cambridge, MA (US); Mitchell Terrance Westwood, Boston, MA (US); William Henry Woodford, Cambridge, MA (US); Yet-Ming Chiang, Weston, MA (US); Mateo Cristian Jaramillo, San Francisco, CA (US); Ian Salmon Mckay, Seattle, WA (US); Rachel Elizabeth Mumma, Somerville, MA (US); Eric Weber, Pittsburgh, PA (US); Liang Su, Medfiled, MA (US); Amelie Nina Kharey, Cambridge, MA (US); Marco Ferrara, Boston, MA (US); and Theodore Alan Wiley, Somerville, MA (US)
Assigned to FORM ENERGY, INC., Somerville, MA (US)
Filed by FORM ENERGY INC., Somerville, MA (US)
Filed on Jun. 28, 2019, as Appl. No. 16/456,860.
Claims priority of provisional application 62/692,400, filed on Jun. 29, 2018.
Prior Publication US 2020/0006828 A1, Jan. 2, 2020
Int. Cl. H01M 12/02 (2006.01); H01M 12/08 (2006.01); H01M 50/609 (2021.01)
CPC H01M 12/02 (2013.01) [H01M 12/08 (2013.01); H01M 50/609 (2021.01)] 9 Claims
OG exemplary drawing
 
1. A battery, comprising:
a first vessel, the first vessel at least partially including an air environment therein, wherein the first vessel is sealed and air from an ambient environment is pumped into the air environment;
a first air electrode, comprising:
a first oxygen evolution reaction electrode; and
a first oxygen reduction reaction electrode;
a first metal electrode, the first metal electrode comprising a porous bed of metal particles;
a second metal electrode;
a first volume of liquid electrolyte contained within the first vessel, wherein the first volume of liquid electrolyte is disposed between and directly contacts each of the first air electrode, the first metal electrode, and the second metal electrode such that the first air electrode, the first metal electrode, and the second metal electrode are electrically isolated while remaining in ionic contact via the first volume of liquid electrolyte, the liquid electrolyte having an oxygen solubility preventing oxygen from reaching the first metal electrode; and
a first filter disposed in the first volume of the liquid electrolyte within the first vessel, the first filter configured to remove carbon dioxide from the liquid electrolyte, and the first filter venting the carbon dioxide to the air environment.