ELECTRICAL ENERGY STORE, DEVICE AND METHOD FOR OPERATING AN ELECTRICAL ENERGY STORE

Electrical energy store () having at least two electrical energy storage modules (), a control unit (), a voltage connection () and switching elements (). In one example, the electrical energy store () has a first voltage rail () and a second voltage rail () that are each connected to the voltage connection (), and the electrical energy storage modules () are configured to be connected to the first voltage rail () or to the second voltage rail () or to one another by means of the switching elements ().