Graphene/Carbon nanotube (CNT) Reinforced Nanocomposites for Energy Storage Sustainable Buildings

R. Singh, N. Badi, M. Hobosyan, K. Martirosyan
University of Houston, US

Keywords: energy storage, structural battery, sustainable buildings, graphene, carbon nanotubes

Summary:

Summary Advances in multifunctional materials for energy conservation, harvesting, and storage are critically needed to improve building energy efficiency for both new construction and retrofitting of older buildings. Structural polymer composite batteries with high energy storage functionality that can carry structural loads in their individual components while simultaneously storing electrochemical energy for sustainable buildings is the aim of this presentation. In this paper, we address the design, fabrication and test parameters of innovative carbon nanofiber reinforced composites for battery components. In the present structural battery design, we utilized a novel carbon-matrix composite based platform in which each structural part is designed to function as an electrochemical battery component. The design concept includes a metal mesh/foam coated with a cathode material comprised of LiFePO4 and V2O5, a carbon nanotube-graphene (CNT-Graphene) composite film acting as anode, a polypropylene (PP) or fiberglass separator layer, and a structural solid polymer electrolyte binding the components. The current collectors that carry load are part of the anode and cathode and separator layers provide additional structural support and ensure electrical isolation of the electrodes layers. The solid state polymer electrolyte conducts ions between electrodes and provides a channel to transfer load to other components. We will present the fabrication approach along with some test results.