Development of li-ion battery with new generation cathode material on wearable fabrics for defense industry

In this study, military-grade carbon fabric cathode activated with SuperC65 was used as the base material. The electrochemical performance was evaluated by incorporating varying amounts of lithium iron phosphate (LFP) and lithium titanium oxide (LTO). The research focuses on the modification of the cathode material with these additives and investigates the effects of different ratios on electrochemical performance. Surface modifications and additive applications were carried out to enhance the performance of the cathode material. Electrochemical Impedance Spectroscopy (EIS) and Cyclic Voltammetry (CV) techniques were employed to evaluate electrochemical performance. These techniques provided insights into the charge transfer resistance, ion diffusion properties, and redox behavior of the additive-modified cathode material. Furthermore, Scanning Electron Microscopy (SEM) and X-ray Diffraction (XRD) analyses were conducted for surface and structural characterization. As a result, morphological changes, crystal structures, and elemental distributions were examined in detail following the addition of the additives. A full-cell lithium-ion battery was fabricated using the optimal additive ratio, and its electrochemical behavior was thoroughly analyzed. Based on the results, comparative performance evaluations were performed for batteries with different cathode compositions. The electrochemical performance of SuperC65-activated carbon fabric was significantly enhanced through the incorporation of LFP and LTO, resulting in increased cycle life and capacity, along with reduced safety concerns. Consequently, high-performance batteries with minimized safety risks, such as explosions, were developed. The findings aim to contribute to innovative solutions across various sectors, particularly in energy storage applications targeting the defense industry.