@S.Yu - Reading in detail, what they are doing is as follows. Lithium Ion batteries are made of a cathode(for phones it is usually LCO aka lithium colbalt oxide, for electric cars/storage it is NMC, NCA or LTO in modern EVs). And then a graphite anode with sometimes some silicon.What graphene ball is, is same lithium ion but change from graphite or graphite/silicon anode to silicon/graphene anode.So is it a graphene battery? not really. But part of that is because a graphene battery is impossible due to how batteries work in general. At best you might get a full graphene anode.A graphene supercapacitor though might be possible.
@S.Yu - LION is a bit more complex than that. It all depends how the battery is made. For example, more silicon in annode makes the battery more energy dense but sacrifices lifespan. The best way to explain it is like cooking, even with same ingredients, how you structure it and the mix ratio and usage can make a world of difference. So sometimes one can sacrifice improvement in energy density to increase the lifespan so that they can increase the speed it recharges.Trying to look up Huwaii's case, there were 2 mentions of graphene, one for the energy storage industry where they improved thermal management. And another about a rumored phone where the battery is less energy dense but charges much quicker. There is not much info on the 2nd one since its merely a rumor.So I found no reference so far of Huwaii doing the same thing, do you have a link?
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