The development team has created anodes for lithium-ion batteries from silicon dioxide (SiO2) and found that capacity is three times superior to traditional counterparts on the basis of carbon.
And silicon dioxide was previously used as the anode material in lithium-ion batteries. But the capacity to synthesize this material-specific standardized nanostructures with high energy density and long life cycle was limited. The team initially focused on SiO2, because it is extremely common and environmentally friendly connection.
We took the same material long used in children's toys, medical devices and even fast-food, and modified it to create batteries of new generation, — said Zachary Favors, one of the team researchers. Extreme resistance in the battery silicon nanotubes allows to increase service life. In particular, it was carried out 100 cycles of charge-discharge batteries with an improved anode made of nanotubes of SiO2 without loss of intensity. The authors are sure that they can be recharged without loss of efficiency even hundreds of times.
The work of scientists is of great importance to industry, including electronics and electric vehicles, which is always trying to squeeze a lot more out of a dying battery.