A titanium-niobium oxide achieves suppressed adulteration with TiO and TiNbO and suppressed growth of crystal grains, and an electrode and a lithium-ion secondary cell include such a titanium-niobium oxide. The titanium-niobium oxide contains less than 0.3...

Provided are an electrochemical element having excellent load characteristics, an electrode active material, an electrode material, and an electrode that can constitute the electrochemical element, and a movable body including the electrochemical element. ...

According to one embodiment, an electrode material is provided. The electrode material includes active material particle containing: a niobium-titanium composite oxide having an average composition in which a molar ratio of niobium to titanium (MNb/MTi) is...

The problem of the present invention is to provide an anode active material for a sodium ion battery, which may intend to improve safety of the battery. The present invention solves the problem by providing an anode active material for a sodium ion battery...