BIPOLAR ELECTRODE WITH ALIGNED ACTIVE LAYERS, LITHIUM ION BATTERIES HAVING SUCH ELECTRODES, AND A METHOD OF MAKING SUCH ELECTRODES

Abstract: a bipolar electrode for use in a lithium-ion battery includes a current collector, an anode having high aspect ratio conductive carbon particles and an anode binder, and a cathode having cathode active particles in a cathode binder. the high aspect ratio conductive carbon particles in the anode are aligned so that a long axis of the high aspect ratio conductive carbon particles is substantially perpendicular to the current collector. the cathode active particles are paramagnetic, diamagnetic, or magnetic and have been magnetically aligned, the cathode further comprises high aspect ratio conductive particles aligned so that a long axis of the high aspect ratio conductive particles is substantially perpendicular to the current collector, or both. the bipolar electrode can be made by subjecting the current collector coated with slurries including the components for the anode and the cathode to a magnetic field while drying.

Inventor(s): Seung-Woo Chu, Mark Daniel Gottlieb

CPC Classification: H01M4/625 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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