US research institutes say that graphene lithium batteries are expected to be mass-produced
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Researchers at the University of Rensselaer in the United States recently said that when using a graphene-based "low" prototype lithium-ion rechargeable battery LIB anode, it was found that the output density increased to 10 times that of the graphite electrode at a comparable energy density. According to the paper published, the graphene electrode can achieve industrial mass production at a very low cost. Because the technology is mature enough to be commercially available, it will greatly promote the fast charge and discharge type batteries required for electric vehicles and the like. The college's research team used a laser or camera flash on the reduction of graphene oxide sheets. As a result, although graphene is reduced, many holes and cracks appear. It is said that "paper" made of such graphene is used as a negative electrode of LIB, and as a result, an output density equivalent to about 10 times that of the graphite electrode is obtained. Even with rapid charge and discharge with a charge and discharge rate of about 40 C, the capacity density of the electrode remained stable at 156 MAH/G and the output density reached 10 KW/KG. According to the researchers, 100C charge and discharge can also be performed.