Battery cell with reversible vent valve

A battery cell case defining an internal chamber and at least one aperture providing a gas path between the internal chamber and an external environment, the battery cell case comprising:

• a reversible, multiple-use valve assembly configured to selectively open a fluid flow through the at least one aperture to relieve a gas pressure within the internal chamber exceeding a predetermined pressure threshold;
• wherein:
• the valve assembly includes at least one cantilever arm pivotably mounted to the battery cell case;
• and
• each cantilever arm includes an adjustable pivot point configured to select the pressure threshold at which the valve assembly opens the corresponding aperture.

A battery cell comprising:

• a cathode element and an anode element;
• an electrolyte disposed in contact with each of the cathode and anode elements;
• a battery cell case constructed from a rigid material and defining an internal chamber configured to house each of the cathode element, the anode element, and the electrolyte, wherein the battery cell case defines at least one aperture configured to provide a gas path between the internal chamber and an external environment;
• and
• a reversible, multiple-use valve assembly mounted to the battery cell case and configured to selectively open a fluid flow through the at least one aperture to relieve a gas pressure within the internal chamber exceeding a predetermined pressure threshold;
• wherein:
• the valve assembly includes at least one cantilever arm pivotably mounted to the battery cell case;
• each cantilever arm includes an adjustable pivot point configured to select the pressure threshold at which the valve assembly opens the corresponding aperture;
• and
• the valve assembly includes a valve tip connected to each cantilever arm and configured to selectively open and close the respective aperture.