Ford Global Technolgoies, LLC

Rutooj D Deshpande

Satish B Chikkannanavar

Xu Wang

Bhaskara Rao Boddakayala

Kevin Vander Laan

Christian Edward Shaffer

Dawn Bernardi

A method for fabricating an electrode sandwich includes, responsive to an amount of cyclable lithium lost being greater than a predefined threshold, initiating, by a controller, current flow between the sandwich and a lithium replenishment electrode in ionic conductivity with the sandwich via replenishment gaps to transfer lithium thereto, and, responsive to an amount of transferred lithium corresponding to the amount lost, hot-press sealing the replenishment gaps and detaching the replenishment electrode from the sandwich.

Lithium replenishment cell to enhance beginning of life capacity

A system for a vehicle includes an engine and electric machine each configured to propel the vehicle, and a controller configured to, responsive to a resistance of a traction battery and a change in the resistance during battery discharge being greater than respective thresholds, reduce power to the electric machine and activate the engine.

Battery power prediction for high load events

A vehicle includes a traction battery and a controller programmed to, in response to a duration of current flow through the traction battery exceeding a predetermined duration, output a state of charge based on a first resistance value that is greater than a second resistance value used when the duration is less than the predetermined duration to compensate for a change in voltage drop caused by diffusion processes within the traction battery.

Battery state of charge estimation based on current pulse duration

A method includes controlling operation of a vehicle in response to an estimation of a capacity loss and capacity of a lithium-ion battery module of the vehicle. The estimation is a function that includes a state-of-lithiation swing and fracture of a solid-electrolyte interphase of an electrode of the lithium-ion battery module. The methodology can be implemented in a vehicle that includes a lithium-ion battery module and a controller that controls operation of the vehicle in response to such an estimation.

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Farmington Hills, MI, United States of America

Rutooj D Deshpande