| abstract |
Embodiments of the disclosure set forth energy storage devices. Some example energy storage devices include a first hybrid capacitor, a first battery and an electric double-layer capacitor. The first hybrid capacitor includes a first positive electrode, a first negative electrode and a first electrolyte. The first battery couples to the first hybrid capacitor and includes a second positive electrode, a second negative electrode and a second electrolyte. The electric double-layer capacitor couples to the first battery and includes a third positive electrode, a third negative electrode and a third electrolyte. The first positive electrode includes the second positive electrode. |