Hybrid Carbon Materials—Synthesis and Potential Application in Lithium-Ion Batteries as Cathode

Nowadays, the development and advancement of several devices reliant on battery autonomy are accelerating. Consequently, some new objectives are to develop lightweight batteries with superior efficiency and longevity.
Knowing the potential of carbon materials as electrodes in lithium-ion batteries, we synthesized these materials using chemical vapor deposition (CVD) as a synthesis method. Zeolites FAU-NaY and MCM41 served as the structural framework, acetone was utilized as the carbon source, and the process was conducted under low pressure and temperature conditions using hydrogen-argon as carrier gas. The zeolites were removed from carbon materials. The resulting carbon materials were characterized through Raman spectroscopy, XRD analysis, and SEM/EDS microscopy.
The material produced exhibits a hybrid structure composed of graphene, graphene oxide and carbon nanotubes. Then, this carbon materials were used to prepare a cathode. The cathode for lithium-ion batteries was mounted with the hybrid carbon materials and the respective coin cell CR2032-type was assembled to evaluate its electrochemical performance. The lithium-ion batteries were subjected to various galvanostatic charge and discharge cycles to assess their performance in time function and durability.