Patent ID: 8481203

Claim:
An integrated energy storage unit comprising: a container electrically coupled to an energy storage management system; a rechargeable battery housed within a battery pouch within the container, the battery comprising: one or more positive battery plates coupled to a positive battery terminal; one or more negative battery plates coupled to a negative battery terminal; a battery electrolyte; a capacitor housed within a capacitor pouch within the container, separate from the battery, the capacitor having a higher voltage rating than the voltage rating of the battery and the capacitor having an internal resistance less than one half of the internal resistance of the battery comprising: a positive capacitor terminal; a negative capacitor terminal; a capacitor electrolyte different from said battery electrolyte; a plurality of connectors electrically coupling the battery and the capacitor in parallel; a positive lead electrically coupled to the positive battery terminal and the positive capacitor terminal, the positive lead extending from the container; and a negative lead electrically coupled to the negative battery terminal and the negative capacitor terminal, the negative lead extending from the container.