Saudi Arabian Oil Company

Alfaisal University

Yasmin Mussa

Edreese Alsharaeh

Muhammad Arsalan

Faheem Ahmed

Nishat Arshi

Meshael Alturki

Yazeed Aldawsari

Azmat Khan

Zahra Bayhan

Nada Althubaiti

Presented here are nanocomposites and rechargeable batteries. In certain embodiments, nanocomposites a nanocomposite is resistant to thermal runaway, and useful as an electrode material in rechargeable batteries that are safe, reliable, and stable when operated at high temperature and high pressure. The present disclosure also provides methods of preparing rechargeable batteries. For example, rechargeable batteries that include nanocomposites of the present disclosure as an electrode material have, in some embodiments, an enhanced performance and stability over a broad temperature range from room temperature to high temperatures. These batteries fill an important need by providing a safe and reliable power source for devices operated at high temperatures and pressures such as downhole equipment used in the oil industry.

Methods for the production of nanocomposites for high temperature electrochemical energy storage devices

Presented here are nanocomposites and electrochemical storage systems (e.g., rechargeable batteries and supercapacitors), which are resistant to thermal runaway and are safe, reliable, and stable electrode materials for electrochemical storage systems (e.g., rechargeable batteries and supercapacitors) operated at high temperature and high pressure, and methods of making the same.

Presented in the present disclosure are nanocomposites and rechargeable batteries which are resistant to thermal runaway and are safe, reliable, and stable electrode materials for rechargeable batteries operated at high temperature and high pressure. The nanocomposites include a plurality of transition metal oxide nanoparticles, a plurality of ultrathin sheets of a first two-dimensional (2D) material, and a plurality of ultrathin sheets of a different 2D material, which act in synergy to provide an improved thermal stability, an increased surface area, and enhanced electrochemical properties to the nanocomposites. For example, rechargeable batteries that include the nanocomposites as an electrode material have an enhanced performance and stability over a broad temperature range from room temperature to high temperatures. These batteries fill an important need by providing a safe and reliable power source for devices operated at high temperatures and pressures such as downhole equipment used in the oil industry.

Nanocomposite electrode materials for use in high temperature and high pressure rechargeable batteries

A facile approach is described to prepare monodisperse FeOand CoOnanoparticles on chemically reduced graphene oxide (rGO) to form nanocomposites by low temperature solution route and MWI method, respectively. These processes are environmentally friendly and convenient compared with previously reported methods. The synthesized nanocomposites were characterized using x-ray diffraction spectroscopy (XRD), raman spectroscopy, scanning electron microscopy (SEM) measurements and UV/Vis absorption spectroscopy. XRD patterns revealed the high crystalline quality of the nanocomposites. SEM micrographs showed the morphology of the rGO nanosheets decorated by CoOand FeOnanoparticles. UV/Vis study revealed the formation of FeO/rGO and CoO/rGO nanocomposites with characteristics absorption maxima. Finally, preliminary results of using the FeO/rGO and CoO/rGO composites for efficient killing of Human hepatocytes cancer (HepG) cell are reported. Nanocomposites produced by MWI showed better anticancer activity and higher yield than that of low temperature solution route.

Growing community of inventors

Riyadh, Saudi Arabia

Yasmin Mussa