| abstract |
Provided are alkali metal titanium oxides and titanium oxides having novel shapes and industrial advantages. Alkali metal having the shape of secondary particles in which primary particles having an anisotropic structure are aggregated, obtained by firing porous titanium compound particles whose pores and surfaces are impregnated with an aqueous solution of an alkali metal-containing component. It is a titanium oxide and a titanium oxide obtained by using this as a raw material. The secondary particles can take an aggregated structure, have an appropriate size, and are easy to handle, which is industrially advantageous. In particular, H 2 Ti 12 O 25 of the present invention is a lithium secondary battery electrode material having a high capacity, excellent initial charge / discharge efficiency and cycle characteristics, and has extremely high practical value. |