Method for charging an electrical energy store by means of voltage pulses

A device for charging an electrical energy store (1), wherein the electrical energy store comprises at least one electrical energy storage unit (11, 12, 13), and a maximum permissible energy-store voltage limit value is specified for the electrical energy store (1), and wherein the device comprises an electronic circuit (18) for connecting to the electrical energy store (1) and an electronic control unit (16), wherein the electronic control unit (16) is configured to control charging of the electrical energy store (1) with a pulsed electrical charging voltage, wherein for each of a plurality of pulses over a pulse duration a maximum value of the pulsed electrical charging voltage is greater than the maximum permissible energy-store voltage limit value, wherein the pulse duration is shorter than or equal to half a pulse period.

A non-transitory, computer-readable storage medium containing instructions that when executed by a computer cause the computer to

• control charging of an electrical energy store (1) that includes at least one electrical energy storage unit (11, 12, 13), wherein a maximum permissible energy-store voltage limit value is specified for the electrical energy store (11, 12, 13), by charging the electrical energy store (1) with a pulsed electrical charging voltage, wherein for each of a plurality of pulses over a pulse duration a maximum value of the pulsed electrical charging voltage is greater than the maximum permissible energy-store voltage limit value, wherein the pulse duration is shorter than or equal to half a pulse period.

An electrical energy store (1), comprising:

• at least one electrical energy storage unit (11, 12, 13);
• and
• a device having an electronic circuit (18) for connecting to the electrical energy store (1) and an electronic control unit (16), wherein the electronic control unit (16) is configured to control charging of the electrical energy store (1) with a pulsed electrical charging voltage, wherein for each of a plurality of pulses over a pulse duration a maximum value of the pulsed electrical charging voltage is greater than a maximum permissible energy-store voltage limit value specified for the electrical energy store (11, 12, 13), wherein the pulse duration is shorter than or equal to half a pulse period.