High rate pulsed battery

摘要

A lithium secondary cell includes a plurality of stacked layers. The stacked layer includes a lithium-containing positive electrode in electronic contact with a positive electrode current collector, the positive current collector in electrical connection with an external circuit, wherein the positive electrode has a total volumetric energy density of greater than of at least about 1460 Wh/L versus lithium at C/5 rate, a total areal capacity of greater than about 7.5 mA-h/cm² and a total thickness of at least about 200 mum, a negative electrode in electronic contact with a negative electrode current collector, the negative current collector in electrical connection with an external circuit, a separator positioned between the cathode and the anode, the separator having a porosity of at least about 45 vol % and a thickness of less than about 50 mum, and an electrolyte in ionic contact with the positive and negative electrodes. The cell may be used to drive an electronic device that is operatable using a pulsed current protocol.