SINGLE CRYSTAL PARTICLE OF TITANIUM OXIDE, METHOD FOR PRODUCING THE SAME, ELECTRODE ACTIVE MATERIAL CONTAINING THE SINGLE CRYSTAL PARTICLE OF TITANIUM OXIDE AND ELECTRICITY STORAGE DEVICE USING THE ELECTRODE ACTIVE MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a novel single crystal particle of a titanium oxide and to provide a method for producing the same.SOLUTION: The single crystal particle of a titanium oxide has preferably a one dimensional tunnel structure of a monoclinic space group C2/m and is represented by the chemical formula HTiO. The single crystal particle of the titanium oxide can be synthesized by using a single crystal particle NaTiOor NaTiOas a starting material. The electricity storage device using an electrode containing an electrode active material made of the single crystal particle of the titanium oxide as a structural member is excellent in charge and discharge cycle characteristics and is expected to have high capacity.