Abstract: A shear bolt including a head portion and a shaft portion extending along an axis from the head portion is described. The shaft portion has a threaded outer surface and a stepped bore where the stepped bore has a plurality of regions along the axis and a plurality of steps. Each step in the plurality of steps separates adjacent regions in the plurality of regions and an inner diameter of the stepped bore is constant in each region in the plurality of regions and changes discontinuously at each step in the plurality of steps. The inner diameter increases from a first region in the plurality of regions closest to the head portion to a second region in the plurality of regions farthest from the head portion.

Abstract: A shear bolt (100) including a head portion (110) and a shaft portion (120) extending along an axis (125) from the head portion is described. The shaft portion has a threaded outer surface (122) and a stepped bore (124) where the stepped bore has a plurality of regions (130) along the axis and a plurality of steps (128). Each step in the plurality of steps separates adjacent regions in the plurality of regions and an inner diameter (d) of the stepped bore is constant in each region in the plurality of regions and changes discontinuously at each step in the plurality of steps. The inner diameter increases from a first region in the plurality of regions closest to the head portion to a second region in the plurality of regions farthest from the head portion.

Abstract: A battery module having a battery cell assembly with a heat exchanger is provided. The assembly includes a first battery cell having a first side and a second side, and a second battery cell having a first side and a second side. The first side of the second battery cell contacts the second side of the first battery cell. The assembly further includes a heat exchanger. A first side of the heat exchanger contacts the second side of the second battery cell. The battery cell assembly further includes a third battery cell having a first side and a second side. The first side of the third battery cell contacts a second side of the heat exchanger. The heat exchanger removes heat energy from the first, second, and third battery cells to maintain the first, second, and third battery cells at substantially a desired temperature.

Abstract: A battery module having a battery cell assembly with a heat exchanger is provided. The battery cell assembly includes a first battery cell having a first side and a second side. The battery cell assembly further includes a second battery cell having a first side and a second side. The first side of the second battery cell contacts the second side of the first battery cell. The battery cell assembly further includes a heat exchanger having a first side and a second side. The first side of the heat exchanger contacts the second side of the second battery cell. The battery cell assembly further includes a third battery cell having a first side and a second side. The first side of the third battery cell contacts the second side of the heat exchanger. The heat exchanger is configured to remove heat energy from the first, second, and third battery cells to maintain the first, second, and third battery cells at substantially a desired temperature.