Patent ID: 11942654
Assignee: 24M TECHNOLOGIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 16:
17. A method of degassing an electrochemical cell stack, comprising:
placing an electrochemical cell stack on a bottom pouch, the electrochemical cell stack including a plurality of electrochemical cells, each electrochemical cell comprising an anode, a cathode fluidically isolated from the anode via a selectively permeable membrane, an anode degassing port fluidically coupled to the anode, a cathode degassing port fluidically coupled to the cathode, an anode tab electronically coupled to the anode, and a cathode tab electronically coupled to the cathode;
joining a top pouch to the bottom pouch to form a cased electrochemical cell stack, the cased electrochemical cell stack including a first compartment housing the electrochemical cell stack, a second compartment, and a third compartment;
sealing around a perimeter of the cased electrochemical cell stack to fluidically isolate the anode of each electrochemical cell from the cathode of each electrochemical cell;
applying a vacuum to the cased electrochemical cell, the vacuum operable to transfer a first gas from each of the anodes to the second compartment via the anode degassing ports and transfer a second gas from each of the cathodes to the third compartment via the cathode degassing ports;
sealing an area between each electrochemical cell and the second compartment and an area between each electrochemical cell and the third compartment; and
cutting the second compartment and the third compartment to remove the second compartment and the third compartment from the cased electrochemical cell stack to form a degassed electrochemical cell stack.