For my understanding of electron-phonon interaction is that when electron moves across a lattice, it distorts charges and it leads to a higher density of positive charge at an instance of a second. As the electron leaves the region of high positive charge, another electron will jump in to replace its spot and through this interaction, it creates a bonding of the two electron which then it would become a cooper pair. Is that the correct picture? Can we imagine it to be like how mass distorts space-time, while here, electrons distort lattice structure and creates region of low potential? Actually that doesn't seem right, electron-phonon interaction seems to only work when electrons are moving right? When mass sits still, gravity still plays... I am trying to explain electron-phonon interaction to bio/chem people with little physics background. I personally don't know enough about phonons. So please help me. Thank you.