Balancing the Need for High Capacity and the Desire for Fast Charge for Batterier in Consumer Electronics(PPT)

摘要

After almost 30 years of CCCV Charge,lithium-ion chemistry is reaching its energy density ceiling(for now).1.The next best thing to having more capacity is having capacity replenished faster;2.Developers are working on fast charge concepts that are best when they are combined with cell modifications for accepting faster charge;3.The charge stresses(high current and high cut-off voltage)must be removed at some stage of the cell’s life.