Ford Global Technolgoies, LLC

Bogdan Bude

Xiao Guang Yang

Connor McCann

Xu Wang

Philip Michael Gonzales

Jingmei Shen

Pratima V Addepalli

Pratima Addepalli

A traction battery assembly includes, among other things, a plurality of battery cells disposed along an axis, an endplate at an axial end of the plurality of battery cells, and a corrugated area of the endplate. The corrugated area has a plurality of corrugations that flatten to accommodate expansion of the plurality of battery cells along the axis.

Traction battery cell expansion accommodating endplate and expansion accommodating method

A vehicle includes an electric machine, a battery, an electrical circuit, an overcharge limit device, and a controller. The electric machine is configured to propel the vehicle. The battery has a plurality of cells and is configured to provide electrical power to the electric machine. The electrical circuit is configured to deliver the electrical power from the battery to the electric machine. The overcharge limit device is configured to individually disconnect each of the plurality cells from the circuit in response to an internal pressure of a respective cell exceeding a pressure threshold. The controller is programmed to, in response to detecting a first set of parameters that are indicative of a first of the cells being disconnected from the electrical circuit via the overcharge limit device, discontinue control the first of the cells.

Battery control system for a hybrid or electric vehicle

A battery cell includes an electrode, a terminal, and a current-interrupt device configured to electrically isolate the terminal from the electrode. The current-interrupt device includes a plate connected to the electrode and defining a hole, and a diaphragm connected to the terminal and joined to the plate forming a ceiling of the hole. A cover of the current-interrupt device is joined to the plate forming a floor of the hole. A dielectric fluid is disposed in the hole. The diaphragm and cover are configured to move toward the terminal, in response to pressure within the cell exceeding a threshold, to separate the diaphragm from the plate forming a gap therebetween and to release the fluid into the gap preventing current from arching across the gap.

Current-interrupt device for battery cell

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Canton, MI, United States of America

Bogdan Bude