What is Graphene? (Wikipedia)
Graphene is an allotrope of carbon in the form of a two–dimensional, atomic-scale, honey-comb lattice in which one atom forms each vertex. It is the basic structural element of other allotropes, including graphite, charcoal, carbon nanotubes and fullerenes. It can also be considered as an indefinitely large aromatic molecule, the ultimate case of the family of flat polycyclic aromatic hydrocarbons. Graphene has many extraordinary properties. It is about 100 times stronger than the strongest steel. It conducts heat and electricity efficiently and is nearly transparent.
Dongxu Optoelectronic Technology recently unveiled a graphene battery in Beijing, called G-King. The report out of China does not reveal how close the G-King battery is to mass production. It might be close, considering the stage show the company pulled off and if so, it may be the world’s first graphene battery.
The demonstrated graphene battery has a capacity of 4,800mAh, which is a typical capacity of laptop battery. The company showed the G-King’s super-fast charging time. It only takes 13 to 15 minutes compared to several hours a conventional Lithium-Ion battery needs. That’s 10 to 20 times faster. Dongxu Optoelectronic Technology says that the G-King graphene battery supports 3,500 charge and discharge cycles – around 7 times higher than Li-Ion batteries.
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