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Samsung Nanotech Breakthrough Nearly Doubles Li-Ion Battery Capacity
The Korea Times reports that Samsung researchers have published in Nature Communications the results of research (here's the abstract) that could lead to vastly greater storage capacity for lithium-ion batteries. The researchers, by growing graphene on silicon anodes, were able to preserve the shape of the anodes, an outcome which has formerly eluded battery designers: silicon tends to deform over numerous charging cycles. From the linked abstract: Here we report direct graphene growth over silicon nanoparticles without silicon carbide formation. The graphene layers anchored onto the silicon surface accommodate the volume expansion of silicon via a sliding process between adjacent graphene layers. When paired with a commercial lithium cobalt oxide cathode, the silicon carbide-free graphene coating allows the full cell to reach volumetric energy densities of 972 and 700Whl1 at first and 200th cycle, respectively, 1.8 and 1.5 times higher than those of current commercial lithium-ion batteries.
Also at ZDNet.
For those cozy nights by the fire.
It was actually cost that decreased by 50% last week. So hopefully nobody remembers that, and they can double their battery capacity and their profits at the same time!
I won't be satisfied with my phone until I can shave with it.
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Any theories for why Tesla's stock price didn't pop on this news?
Musk already had one big pop today.
Must be rolling in his grave.