Keywords: layered graphene, high capacity, high voltage, Li-ion battery
Summary:The Li-ion battery (LIB) market grows exponentially every year. The factors driving the growth of the LIB market include increasing demand for – electric vehicles, industrial applications, connected and IoT-based devices, and many other mobile electronic devices. However, the present LIB technology, based on graphite anode chemistry, is still lacking in terms of high-energy density and high-power for a long lifetime of safe cycling. The lack of high energy density is triggered by the low capacity of the graphite (theoretically, 372 mAh/g) to store high-density charges transferred by Lithium between two electrodes. HeXalayer develops and scales up a novel class of layered rotated graphene technology that sufficiently increases LiBs capacity up to seven-fold (~1960 mA.h/g) compared to current graphite batteries by replacing the anode with graphene. The uniquely constructed structure of graphene layers provides a large amount of reversible Lithium diffusion, generates higher nominal Voltage, and stable kinetics for long-term charge/discharge cycling. HeXalayer’s technology aims to bring to market a new class of rechargeable batteries that would deliver more than twice as much energy compared to current LIBs. It would significantly decrease the weight of the batteries for the requested power and charging rate.