The energy density of a storage device refers to the amount of energy that can be stored within a device of a specific size. Power density refers to the manner in which energy can be stored. The greater the power density, the faster the storage device can be charged and discharged. Typically, batteries have high energy density and low power density while capacitors have low energy density and high power density. Ideally, a storage device will have both high energy density and high power density but, generally speaking, most storage devices achieve only one of these parameters.
This technology proposes a solution in the form of a novel nanostructured material coating for electrode surfaces. The material’s morphology can be described as stacked nanowire arrays and graphene nanosheets that produce both high energy density and high power density devices and systems and a method whereby tailoring the number of nanowire arrays can increase the energy density while retaining the power density.
• Electric vehicles
• Power tools
• Unmanned aerial vehicles
Features, Benefits, and Advantages:
• Novel bottom-up nanofabrication process
• High charge/discharge rate
• High energy density and high power density
This system has been produced and tested and the researcher is working on scalable fabrication and device assembly.