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My reading is that it's sensationalistic in that they haven't actually built a 10x battery, only an anode that can power it. It does seem, however, that the 10
by ianterrell 14y ago
My reading is that it's sensationalistic in that they haven't actually built a 10x battery, only an anode that can power it.
It does seem, however, that the 10x number is accurate (in fact, I don't see any 2x notes anywhere in the article).
almost every lithium-ion battery uses a graphite (carbon) anode, which has a specific capacity of 400 mAh per gram. ... Yi Cui’s team, however, has successfully built a double-walled silicon nanotube anode that has a capacity of around 4,000 mAh per gram.
- StavrosK 14y agoIt says: > The next step is to simplify the production of these nanotubes [...] and then to build an actual battery with double the energy density of current lithium-ion batteries. This might seem like a humble goal after saying that silicon anodes can increase power density by 10 times, but as we mentioned, the electrolyte and cathode are also important.