NOVELTY - The battery cell system comprises a battery cell configured as a pouch cell, which has a flat cell base with two faces (12a), a flexible cell edge surrounding the cell base, two contact sections arranged on an edge side of the battery cell, a frame system (32) having a first frame element (18) and a second frame element (18') and surrounding the cell base on the edges of all sides. A vent opening (31) is provided on a side of the frame system facing away from the front faces of the cell base in order to allow a fluid to escape from the battery cell system in the event of damage.    USE - Battery cell system useful in electric vehicle application.    ADVANTAGE - The battery cell system is compact, requires less space and can be economically manufactured with good reliability.    DETAILED DESCRIPTION - The battery cell system comprises a battery cell configured as a pouch cell, which has a flat cell base with two faces (12a), a flexible cell edge surrounding the cell base, two contact sections arranged on an edge side of the battery cell, a frame system (32) having a first frame element (18) and a second frame element (18') and surrounding the cell base on the edges of all sides. A vent opening (31) is provided on a side of the frame system facing away from the front faces of the cell base in order to allow a fluid to escape from the battery cell system in the event of damage. The vent opening is associated to a side of the battery cell that lies against the edge side of the battery cell having the contact section. The vent opening is arranged in installation condition of the cell system and is formed through a recess at the first frame element and/or a recess at the second frame element. The frame system partially forms a cooling channel that extends itself along a side of the frame system associated to the contact section. The cooling channel passes adjacent to the contact section of the battery cell and passes in a plane that is arranged to a plane defined through the contact section. The vent opening and the discharge opening of the cooling channel are arranged at opposite sides of the frame system. The cooling channel has a linear line. The first frame element forms a first cooling channel half, and the second frame element forms a second cooling channel half, where one of the frame elements forms an identical frame system. The cooling channel half is formed through a channel-shaped recess and a tubular component is inserted into the respective cooling channel. The cooling channel is arranged in a holding portion that extends itself from one of the frame elements in a direction that passes parallel to the plane formed through the lateral sides. A cooling plate is provided that is in direct contact with the cooling channel and covers one of the lateral sides of the cell body. One of the lateral sides of the cell body is covered sectionally with an elastomer layer. One of the frame elements has a recess for the reception of the cooling plate and/or elastomer layer, where the recess is arranged on a side of the frame elements turned away from the cell body. The frame system has a clamping device by which the cell edge is clamped for fixing the battery cell between the frame elements. The clamping device has a groove formed on one of the frame elements, and a projection complementary formed on another frame element in order to create a groove-feather-connection by which the cell edge is partially clamped. The clamping device extends itself on two opposite sections of the frame system along the total height of the cell body. The first and second frame elements are identical in construction.    DESCRIPTION OF DRAWING(S) - The figure shows a schematic representation of a battery cell system.    Front face (12a)    First frame element (18)    Second frame element (18')    Vent opening (31)    Frame system. (32)