Bayerische Motoren Werke Aktiengesellschaft

Benjamin Weber

Sebastian Scharner

Christian Kulp

An energy store has a plurality of electrical energy storage cells, which are connected electrically in series or parallel and are combined to form an energy storage module. Cooling plates are arranged between the energy storage cells and into which coolant or refrigerant can be introduced. A plurality of emergency switching devices are provided, each of which is associated with an energy storage cell and one or two cooling plates. The emergency switching devices allow the coolant or refrigerant to flow into the associated cooling plates only if a temperature of the associated energy storage cell exceeds a defined limit temperature.

Stored electrical energy source having an emergency cooling device

An energy store has a plurality of electrical energy storage cells, which are connected electrically in series or parallel and are combined to form an energy storage module. Cooling plates are arranged between the energy storage cells and into which coolant or refrigerant can be introduced. Each cooling plate has a support frame, which extends around an elastic insert. The elastic insert forms a channel structure, which guides the coolant or refrigerant through the elastic insert. A method for producing the energy store has the following steps: adhesively bonding a first electrically insulating film to a side of a support frame of a cooling plate; arranging an elastic insert within the support frame, whereby the elastic insert is also adhesively bonded to the first electrically insulating film, and alternately stacking energy storage cells and cooling plates to form an energy storage module.

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Munich, Germany

Benjamin Weber