TheElectrium Z (Japanese:デンキZElectric Z) is a type ofZ-Crystal introduced inPokémon Sun and Moon. It is thetype-specific Z-Crystal associated with theElectric type and allows Pokémon to upgrade their Electric-type moves toZ-Moves.
InTrial and Tribulation!, Ash obtained another Electrium Z from Tapu Koko. It had swapped it with theFightinium Z that he was supposed to receive from Hala as a reward for completing hisMelemelegrand trial. In10,000,000 Reasons to Fight!, this specific Electrium Z was revealed to have the unique ability to temporarily transform into aPikashunium Z. This transformation reoccurred inA Battle Hand-Off! andFrom Z to Shining Z!, with the latter transformation being permanent. The reason and cause for these transformations have not been explained.
Dia was revealed to have an Electrium Z inParallel Friendships!. He uses it to perform Gigavolt Havoc with his partner,Zeraora.
A full set oftype-specificZ-Crystals, including the Electrium Z, appeared inA Grand Debut!, whereHapu allowed Ash to choose his grand trial prize from them.
A full set of replicas of the type-specific Z-Crystals, including the Electrium Z, appeared inA Team-on-Team Tussle!, where they were shown to Ash andhis classmates by Professor Kukui.
Merchandise
The Electrium Z has been featured in thePokémon Z-Ring toy line byTakara Tomy, as well as in various other officially licensed merchandise.