Electrochemical energy store, means of transport, cell vent and method for manufacturing a cell vent
AssigneeBayerische Motoren Werke Aktiengesellschaft
InventorsPhilip Kotter, Simon Lux, Matthias Reichert, Alexander Rheinfeld, Sebastian Scharner
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Abstract
The present disclosure is directed to an electrochemical energy store, a means of transport, a manufacturing method and a cell vent for an electrochemical energy store. In one form a cell vent comprises a first layer comprising a metal and a second layer comprising a first plastic, wherein the first layer and the second layer are arranged successively with respect to a pressure differential on the cell vent.
Claims11
A cell vent for an electrochemical energy store, comprising:
- a first layer comprising a metal;
- and
- a second layer comprising a first plastic;
- wherein the first layer and the second layer being arranged lying one behind the other with respect to a pressure differential at the cell vent;
- and
- wherein the first layer has a predetermined breaking point comprising a third plastic.
A method for manufacturing a cell vent for an electrochemical energy store, comprising:
- a first layer comprising a metal;
- and a second layer comprising a first plastic, wherein the first layer and the second layer being arranged lying one behind the other with respect to a pressure differential at the cell vent, and wherein the first layer has a predetermined breaking point comprising a third plastic, the method comprising:
- punching out the first layer from a first sheet;
- punching out the second layer from a second sheet;
- closing an opening in a cell housing for an electrochemical energy store by means of the first layer and the second layer, the second layer being arranged between the first layer and an interior of the cell housing.
An electrochemical energy store, comprising:
- a cell vent, comprising
- a first layer comprising a metal;
- and
- a second layer comprising a first plastic;
- wherein the first layer and the second layer being arranged lying one behind the other with respect to a pressure differential at the cell vent;
- and
- wherein the first layer has a predetermined breaking point comprising a third plastic.
A means for transport comprising a cell vent for an electrochemical energy store, the cell vent comprising:
- a first layer comprising a metal;
- and
- a second layer comprising a first plastic;
- wherein the first layer and the second layer being arranged lying one behind the other with respect to a pressure differential at the cell vent;
- and
- wherein the first layer has a predetermined breaking point comprising a third plastic.
Dependencies are inferred from the claim text.