Battery cell with serpentine tab

A battery cell, comprising:

• a set of layers comprising a cathode layer, an anode layer, and a separator layer disposed between the cathode layer and the anode layer;
• an enclosure enclosing the set of layers;
• a cap disposed over an opening of the enclosure, wherein the cap comprises a channel extending along a periphery of a surface of the cap;
• and
• a feedthrough comprising:
• a pin extending from the surface of the cap to form an external battery terminal;
• an insulator surrounding the pin and configured to electrically isolate the pin;
• a serpentine tab electrically coupled to the pin extending from the surface of the cap at a first end, the serpentine tab electrically coupled to a tab extending from the set of layers at a second end;
• and
• wherein the serpentine tab is nested within the channel to minimize use of space within the enclosure.