Battery cells for battery packs in electric vehicles

Provided herein are battery cells (100) for battery packs (405) in electric vehicles(505). The battery cell (100) includes a housing (115) defining an inner region (215), an electrolyte (120) disposedwithin the inner region (215), and a gasket (125) that couples a lid (110) with the housing (115) to seal the battery cell (100). The gasket (125) can include an inner portion (135) having an ingresspoint (140) and an egress point (145). The inner portion (135) can have disposed therein a thermocouple wire (130) that extends through the inner portion (135), past the ingress point (140) and pastthe egress point (145). The thermocouple wire (130) can include a first lead (165), a second lead (165), and a third lead (165). The first, second, and third leads (165) can be disposed within a common jacket (155) between the ingress point (140) and the egress point (145). A thermocouple sensor (105) can be disposed in the inner region (215) and be coupled with the first, second, and third leads(165) of the thermocouple wi