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

Claim 0:
1. 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, an anode degassing port fluidically coupled to the anode, and a cathode degassing port fluidically coupled to the cathode;
joining a top pouch to the bottom pouch to form a cased electrochemical cell stack, the top pouch including a stack compartment and at least two degassing compartments, the stack compartment encasing the electrochemical cell stack;
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 stack, the vacuum operable to (a) draw gas from the anode of each electrochemical cell into a first degassing compartment of the at least two degassing compartments, and (b) draw gas from the cathode of each electrochemical cell into a second degassing compartment of the at least two degassing compartments;
applying a seal between each electrochemical cell and the first degassing compartment and between each electrochemical cell and the second degassing compartment; and
removing the at least two degassing compartments from the cased electrochemical cell stack to form a degassed electrochemical cell stack.