CHARGING STRATEGIES FOR MELTING LITHIUM COATING IN AN ELECTRIC VEHICLE BATTERY

摘要

A vehicle includes a traction battery and a controller that is in communication with the battery and that is programmed to control battery charging in response to a user-selected one of a plurality of charging strategies having different charging rates based on detection of lithium coating in the battery. The charging strategies may include options for faster charging with an urgent or emergency charging strategy that is selectable for a limited number of times to mitigate battery performance degradation associated with lithium plating. A method implemented by a vehicle controller in a vehicle having a traction battery may include controlling battery charging by the controller in response to a user-selected charging strategy selected from one of a plurality of available charging strategies, each having one of a charging rate and displayed on a user interface in response to detection of lithium coating in the traction battery, with at least one charging strategy being accompanied by additional lithium coating, if selected.