Shares plunged as much as 8% to the lowest level since 2009 after analysts warned its status as a major player in the industry was under threat.
In yet another blow to the industry, Northvolt said it would scale back its commitments and drive down costs in the face of a 'challenging' market.
Aldi's UK and Ireland chief executive, Giles Hurley, said he wants more shops 'across the length and breadth' of Britain amid a battle for market share.
