Korea Sungkyunkwan University released news that its research group based on the structure and function of spider web to develop high-performance lithium-ion battery electrode active material successfully solved the problem of high capacity material degradation and charge-discharge slow and can be applied to a variety of Type of high-capacity secondary battery.
Currently, scientists have developed various materials such as high-capacity silicon and transition metal oxides to overcome the limitation of limited graphite capacity (about 370 ma h / g) in the negative electrode material of lithium-ion batteries. However, most of the high-capacity materials have a high electrical conductivity Slow, resulting in slow charge and discharge or charge and discharge due to volume expansion and speed limit characteristics such as long-term instability and other issues.
South Korea's research group used the ice film method to form a cobweb-shaped three-dimensional network structure into multiple-protected carbon nanotubes and subject it to ozone treatment to make the nanotube surface behave like a spider web with elasticity Published in the international academic journal "Advanced Energy Materials".
