A chromium doped lithium titanium oxide nanostructure a method for manufacturing the same a anode active material for a sodium ion battery comprising the same a anode for a sodium ion battery comprising the anode active material and a sodium ion battery comprising the anode

摘要

The present invention relates to a lithium titanium oxide nanostructure doped with chromium, a manufacturing method thereof, a negative active material for a sodium ion battery including the same, a negative electrode for a sodium ion battery including the negative active material, and a sodium ion battery including the negative electrode, Specifically, by forming a nanostructure of a porous structure doped with an appropriate amount of chromium ions in lithium titanium oxide, it is possible to improve the mobility of electrons and sodium ions by shortening the movement paths of electrons and sodium ions in the electrode, thereby improving electrical and ionic conductivity. and it is possible to remarkably improve the output characteristics and rate characteristics of the battery using the same. In addition, the chromium-doped lithium titanium oxide nanostructure of the present invention can increase the contact area between the electrode and the electrolyte to expand the reaction with sodium ions, thereby improving the energy density of the battery.