LARGE-FORMAT BATTERY ANODES COMPRISING SILICON PARTICLES

Abstract: large-scale anodes containing high weight percentages of silicon suitable for use in lithium-ion energy storage devices and batteries, and methods of manufacturing the same, are described. the anode material described herein can include a film cast on a current collector substrate, with the film including a plurality of active material particles and a conductive polymer membrane coated over the active material particles. in some embodiments, the conductive polymer membrane comprises polyacrylonitrile (pan). the method of manufacturing the anode material can include preparation of a slurry including the active material particles and the conductive polymer material, casting the slurry on a current collector substrate, and subjecting the composite material to drying and heat treatments.

Inventor(s): Tyler Evans, Daniela Molina Piper

CPC Classification: H01M4/364 (PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY)

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