One of Electrode’s characteristics is its attraction to electricity. It is a problematical Pokémon that congregates mostly at electrical power plants to feed on electricity that has just been generated. It stores an overflowing amount of electric energy inside its body. Even a small shock makes it explode. It explodes in response to even minor stimuli. It is feared, with the nickname of “The Bomb Ball.”
Pokédex entry #101
electrode in Pokémon GO
It's possible to hatch electrode from an egg?
No, electrode can't be hatched.
Which are electrode’s strengths and weaknesses?
electrode is a electric type Pokémon. electric type pokémons are strong against water, flying pokémons but weak against electric, grass, dragon pokémons. They are not affected by ground type pokémons.