A battery cell having first cell connectors, a galvanic cell and a first switching unit electrically coupled to the first cell connectors and the galvanic cell for electrically coupling the galvanic cell to the first cell connectors depending on a switching state of the first switching unit. The battery cell has second cell connectors electrically separated from the first cell connectors and a second switching unit electrically coupled to the second cell connectors and the galvanic cell for electrically coupling the galvanic cell to the second cell connectors depending on a switching state of the second switching unit.

A battery cell having first cell connectors, a galvanic cell and a first switching unit electrically coupled to the first cell connectors and the galvanic cell for electrically coupling the galvanic cell to the first cell connectors depending on a switching state of the first switching unit. The battery cell has second cell connectors electrically separated from the first cell connectors and a second switching unit electrically coupled to the second cell connectors and the galvanic cell for electrically coupling the galvanic cell to the second cell connectors depending on a switching state of the second switching unit.

Described embodiments include a system and a method. A system includes a controllable electrochemical cell configured to output electric power. The controllable cell includes an electrolyte and a first working electrode configured to transfer electrons to or from the electrolyte. The controllable cell includes a second working electrode configured to transfer electrons to or from the electrolyte. The controllable cell includes a gating electrode spaced-apart from the second working electrode. The gating electrode is configured, if biased relative to the second working electrode, to modify an electric charge, field, or potential in the space between the electrolyte and the second working electrode. The controllable cell includes a control circuit coupled to the gating electrode of the controllable cell and configured to apply a biasing signal responsive to an electrical property of an external electrical load coupled to the controllable cell.

Described embodiments include a system and a method. A system includes a controllable electrochemical cell configured to output pulsed electric power. The controllable cell includes an electrolyte, and a first working electrode configured to transfer electrons to or from the electrolyte. The system includes a second working electrode configured to transfer electrons to or from the electrolyte. The system includes a gating electrode spaced-apart from the second working electrode and configured if biased relative to the second working electrode to modify an electric charge, field, or potential in the space between the electrolyte and the second working electrode. The system includes a control circuit configured to establish a nonlinear voltage-current property of the controllable cell in response to an externally originated trigger signal.

Described embodiments include a system and a method. A system includes a controllable electrochemical cell configured to output electric power. The controllable cell includes an electrolyte and a first working electrode configured to transfer electrons to or from the electrolyte. The controllable cell includes a second working electrode configured to transfer electrons to or from the electrolyte. The controllable cell includes a gating electrode spaced-apart from the second working electrode. The gating electrode is configured, if biased relative to the second working electrode, to modify an electric charge, field, or potential in the space between the electrolyte and the second working electrode. The controllable cell includes a control circuit coupled to the gating electrode of the controllable cell and configured to apply a biasing signal responsive to an electrical property of an external electrical load coupled to the controllable cell.