Graphene Nano Anode Allows Longer Cycle Life

摘要

Lithium ion batteries continue to show the most promise in the near and mid-term to power everything from cell phones and personal electronics to electric vehicles (EVs) and power grids. There are improvements to be made, however, and significant research is underway to find new materials to improve lithium ion battery performance.One area of great interest is to extend the charge and discharge cycle life of the batteries. Commercial lithium ion batteries begin to lose their performance after about 1,000 charge cycles. This seems a large number (corresponding to charging your EV every day for three years). But the advent of fast charging, opportunity charging, and recharging an only partially depleted battery means that this number of charge cycles can be reached over a much shorter time period.