Pleated graphene for more powerful batteries

Repeatedly rubbing the nano-material graphene, it can enhance some of its characteristics. Researchers at Northwestern University have discovered that wrinkled granular graphene can be used to enhance the charging performance of lithium batteries and overcome the disadvantages of some lithium batteries. Jiaxing Huang, an associate professor at Northwestern University in the United States, explained that "in the current battery technology, lithium needs the automatic distribution of another material such as graphite or silicon electrodes."

"And the use of additional materials will 'attenuate' battery performance. Lithium is already a metal. Why not use lithium itself?" Because microscopic lithium fibers accumulate on the electrodes when the battery is charged, when they are dispersed It will eventually lead to a short circuit, so the researchers used 3D nano-graphene materials to enhance performance and prevent the formation of branching crystallization. The research team of Northwest University discovered that the processing of nanographene by folding process will greatly increase the energy storage performance of lithium batteries and prevent lithium from forming crystallization. Significantly improve the charging performance of lithium batteries.

Associate Professor Huang said, “Our strategy is to think backward, and particles are not bound to each other. When combined with lithium, it still constitutes a continuous conductive material. When lithium is separated, particles can be reconstructed and called another continuity. The overall graphene particle layer" can greatly increase the number of effective lithium charge and discharge cycles.