Abstract: An energy storage system includes a container enclosing a battery cell array and having a fluid which surrounds the battery cell array. The system can include a refrigeration system to increase heat energy transfer from the battery cells. The system can include an external fluid loop configured to carry the fluid externally from the container through a heat exchanger. The system can also include a wall having a communication port which is configured to connect with an enclosure and convey electric signals through the wall.

Abstract: A hybrid system includes an electric motor/generator or eMachine with a stator received in a cooling sleeve. The stator is pressed into the cooling sleeve to form a press-fit connection. The press fit connection has sufficient strength to carry the complete torque generated by the eMachine, so the stator will never move relative to the sleeve through the life of the hybrid system.

Abstract: An energy storage system includes a container enclosing a battery cell array and having a fluid which surrounds the battery cell array. The system can include a refrigeration system to increase heat energy transfer from the battery cells. The system can include an external fluid loop configured to carry the fluid externally from the container through a heat exchanger. The system can also include a wall having a communication port which is configured to connect with an enclosure and convey electric signals through the wall.

Abstract: A hybrid system includes an electric motor/generator or eMachine with a stator received in a cooling sleeve. The stator is pressed into the cooling sleeve to form a press-fit connection. The press fit connection has sufficient strength to carry the complete torque generated by the eMachine, so the stator will never move relative to the sleeve through the life of the hybrid system.

Abstract: A rotor for an alternating current generator of a type that has two pole segments provided with interleaved pole teeth and a core disposed between the segments that carries a field coil. The shaft of the rotor carries a slip ring assembly having two metallic slip rings. A ball bearing is disposed between one of the pole segments and the slip ring assembly. A portion of the shaft that is located inside of the inner race of the ball bearing has a pair of slots and wires for connecting the field coil to the slip rings are located in the slots and inside the inner race of the bearing. The electrical connections between the ends of the field coil and the slip rings includes wires that are twisted together to form twisted wire portions. The twisted wire portions are locked or fixed to a fan that is formed of thermoplastic material by material of the fan that completely encircles portions of the twisted wire portions.