High performance battery-supercapacitor hybrid using organic redox species
A patented symmetric battery-supercapacitor hybrid using graphene electrodes and TEMPO in ionic liquid, offering improved performance and regeneration capabilities. Research aims to enhance cost-effectiveness and efficiency using functionalized activated carbon materials.
Overview
This innovative solution is a patented symmetric organic battery-supercapacitor hybrid, leveraging high surface area graphene electrodes and the organic redox species TEMPO in an ionic liquid. It is designed to outperform existing non-aqueous hybrid systems with enhanced performance and partial regenerative capabilities over its operational life. The hybrid aims to improve cost-effectiveness and efficiency by exploring alternative electrode materials, specifically functionalized activated carbon, to enhance electrochemical reactions.
Technical specifications
Key features:
- Utilizes high surface area graphene electrodes for superior performance
- Incorporates TEMPO in an ionic liquid for enhanced redox processes
- Symmetric hybrid design allows partial regeneration of performance losses
- Focus on alternative, cost-effective electrode materials like activated carbon
- Activated carbon offers simple fabrication, higher surface area (>2000 m²/g), and potential for improved power and energy density
- Material functionalization through heteroatom (nitrogen, sulfur, boron, phosphor) protocols
Technology readiness level
Currently at Technology Readiness Level 3, this technology is in the validation phase, focusing on improving hybrid performance through functionalized activated carbon materials. The ongoing research includes material functionalization, electrode development, and hybrid testing to enhance power and energy density while maintaining cycle stability.
About Queen's University
Queen’s University is a comprehensive public research institution with a large student body and global alumni network based in Kingston, Ontario. For industry, it offers a research and technology park with wet/dry labs, shared core facilities, and collaboration models from sponsored research to contract testing. Clinical translation is enabled by integration with Kingston’s major hospital system, providing governed access to patients, clinicians, and health data. Talent pipelines are built through structured internship programs and project-based engagements. Research is backed by Canada’s Tri‑Council agencies and the Canada Foundation for Innovation, plus provincial and industry support, and a dedicated tech transfer office advances IP, licensing, and startups.
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