However, TiO2 is far from ideal and zinc oxide (ZnO) should actually be more
suitable as an electrode material.
Not exact matches
But for all their perceived advantages, magnesium batteries have proven too good to be true since they were first proposed in the 1990s and essentially sidelined by a variety of problems; primarily, the lack of a
suitable cathode, or positive
electrode — otherwise known
as the part of a battery where the magnesium ions enter during discharge of the battery to power an electronic device and then exit during charging.
Such qualities make them
suitable for storing electric charge in batteries and supercapacitors, and
as catalysts in solar and fuel - cell
electrodes.
In practice, however, these elements are not
suitable electrode materials,
as oxygen - based cathodes are inefficient, and sulfur and selenium
electrodes are poor electrical conductors.