LOW TEMPERATURE FAST CHARGE

摘要

An automated charge preparation method periodically determines critical parameters for the set of relevant operating conditions, determines whether fast charging is possible, applies fast charging when possible, otherwise applies a dynamically scaled charging rate that is optimized based upon current critical parameters (while optionally heating the individual battery cells as long as fast charging is not available) to reduce/eliminate a risk of lithium-plating.

主权项

1. A method comprising:
determining, using a lookup table that includes critical parameters for conditions of a battery pack in an electric vehicle, whether a fast charging process is possible for the battery pack, the fast charging process comprising an energy transfer rate of at least 1C; if the determination indicates that the fast charging process is possible, charging the battery pack using the fast charging process; and if the determination indicates that the fast charging process is not possible, charging the battery pack using another charging process in which the energy transfer rate is less than 1C.