The present invention is drawn to a high power electrochemical energy storage
device, comprising at least one stackable, monolithic battery unit. The monolithic
battery unit includes at least two electrochemical energy storage cells. The cells
have a lithium ion insertion anode and a lithium ion insertion cathode, a bipolar
current collector between cells and end plate current collectors at the opposing
ends of each battery unit. A frame may be associated with the perimeter of the
current collector. The current collector comprises a high-conductivity metal. The
device also has the at least two storage cells substantially aligned adjacent one
another, a separator material associated between the anode and the cathode within
each cell; and an electrolyte within each cell.
Additionally, the present invention is drawn to a device combining
two or more of the monolithic units, either in series or in parallel or any combination
thereof, so as to create a high power, high voltage energy storage device.
