There are many applications for energy storage devices that can provide high power, including hybrid cars and renewable energy.
Many studies have focused on reducing lithium-
Ion diffusion distance, but the output is still far below the output distance of the electrolytic capacitor and below the level required for many applications.
Here, we report an alternative method based on the oxidation-reduction reaction of functional groups on the surface of carbon nanotubes. Layer-by-
Layer technology for assembling electrodes composed of additives
Free, dense and functional multi-walled carbon nanotubes.
A few microns thick electrode can store lithium to the reversible weight capacity of the 200mahg-1 electrode, and can also provide a power of 100 kwkg electric 1, and provide more than thousands of cycles, both of which are comparable to electrolytic capacitor electrodes.
A device with carbon nanotubes electrode as the positive electrode and lithium titanium oxide as the negative electrode, whose weight Energy is 5 times higher than that of the traditional electrolytic capacitor, and the power transmission is 5 times higher than that of the traditional lithium-ion batteries.