Electrode material for battery, electrode material paste for battery, and solar cell using same, storage battery, and method for manufacturing solar cell
According to one embodiment, an electrode material for a battery includes a tungsten oxide powder or a tungsten oxide composite powder provided with a coating unit containing at least one selected from a metal oxide, silicon oxide, a metal nitride, and silicon nitride.
1. An electrode material for a battery, the electrode material comprising a base at least partially covered by a plurality of coating units, wherein:
the base comprises a tungsten oxide powder or a tungsten oxide composite powder, and the base is at least partially covered by more than one a coating unit comprising a metal oxide and optionally at least one selected from the group consisting of silicon oxide, a metal nitride, and silicon nitride,
wherein:
a thickness of the coating unit is not less than 0.5 nm and not more than 2 nm;
the tungsten oxide powder or the tungsten oxide composite powder has a BET surface area of 5 m 2 /g or more; and
the metal oxide comprises at least one selected from the group consisting of Y 2 O 3 , TiO 2 , ZnO, ZrO 2 , MgO, Al 2 O 3 , CeO 2 , Tm 2 O 3 , Bi 2 O 3 , Mn 3 O 4 , Ta 2 O 5 , Nb 2 O 5 and La 2 O 3 .
2. The electrode material of claim 1 , which is adapted to function in a solar cell or a storage battery.