NOVELTY - Battery cell comprises: a wrapping element (3) made of a wound stack of a first foil coated with anode material, a second foil coated with cathode material and two plastic foils serving as diaphragms; an electrolyte; two current collectors (7, 9); a metallic housing surrounding the wrapping element and the two current collectors; and an integrally embodied insulating frame (23) intermittently stored between the wrapping element including the current collectors mounted on it and, on the other hand, the housing.    USE - The battery cell is useful as a lithium ion battery cell in a motor vehicle (all claimed).    ADVANTAGE - The battery cell has an insulating frame that: can be easily prepared and mounted easily; closely encloses the winding element and the current collector so that it is possibly in a slight spacing loss within the housing through the insulating frame; provides improved stability of the battery cell and mechanically protects the internal components; exhibits increased safety and electrical insulation characteristics; and can be obtained with high accuracy in large quantities at relatively low cost.    DETAILED DESCRIPTION - Battery cell comprises: a wrapping element (3) made of a wound stack of a first foil coated with anode material, a second foil coated with cathode material and two plastic foils serving as diaphragms; an electrolyte; two current collectors (7, 9); a metallic housing surrounding the wrapping element and the two current collectors; and an integrally embodied insulating frame (23) intermittently stored between the wrapping element including the current collectors mounted on it and, on the other hand, the housing. The insulating frame has a bottom (25) and two side walls (27), which are opposite each other and are connected in each case at one end to the bottom. The insulating frame surrounds the wrapping element including the current collectors mounted on it on at least three sides. One current collector is arranged on a first side of the wrapping element and is electroconductively connected to the first foil and the other current collector is arranged on a second side of the wrapping element and is electroconductively connected to the second foil.    DESCRIPTION OF DRAWING(S) - The figure shows internal components of a battery cell with a surrounding insulation frame.    Wrapping element (3)    Two current collectors (7, 9)    Insulating frame (23)    Bottom (25)    Two side walls (27)