Fast synthesis of LIG–PEEU supercapacitors using femtosecond laser-assisted liquid-phase environmental simulation
Source abstract
Abstract
This work presents an innovative method of synthesizing laser-induced graphene–polyether ether urea (LIG–PEEU) composites using femtosecond laser-assisted liquid-phase processing. By the creation of a high-temperature, high-pressure, oxygen-free environment in ethanol, the laser enabled rapid PEEU polymerization on PI films and simultaneous graphene formation. This approach circumvents the challenges of long time, harsh conditions, difficult application associated with conventional PEEU synthesis and enhances the electrical properties of the material by the integration of LIG. The unique porous structure of the LIG and the polar groups of the PEEU optimized the electrochemical performance of the composite. Optimal conditions (which included a laser of 200 kHz, an energy of 0.9 µJ, a speed of 2 mm/s, a line spacing of 0.05 mm, and a 2:1 precursor mass ratio) produced an LIG–PEEU composite with excellent capacitance (84 mF/cm 2 ). Micro-supercapacitors fabricated from this composite exhibited excellent stability, flexibility, and performance, thereby opening new avenues for high-performance micro-supercapacitors and flexible energy storage technologies.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Supercapacitor Materials and Fabrication · Laser-Ablation Synthesis of Nanoparticles · Electrohydrodynamics and Fluid Dynamics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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