Battery cell i.e. lithium ion battery cell, has closure assembly utilized for closing filling aperture and provided with sealing element that is provided with two apertures and stopper, where stopper is arranged in apertures of element

摘要

The cell (1) has a closure assembly (4) utilized for closing a filling aperture (3) and provided with a sealing element (5) that is provided with two apertures and a stopper (6), where the stopper is arranged in the apertures of the sealing element. An inner space receives an electrolyte housing (2) with the filling aperture. The sealing element comprises a main body and an annular flange, where the annular flange is attached at an outer side of the housing and the main body is arranged in the filling aperture.