HISUPERBAT project (06.08.2020 – 31.12.2022) was successfully completed and the planned outcomes were achieved. The project developed carbon and vanadium oxide materials for the next generation of multivalent-ion batteries and supercapacitors. A new concept for producing safe and sustainable carbon supercapacitor, based on Aluminum-ion chemistry, has been proposed and published in a high-ranking electrochemical journal such as Journal of Power Sources (IF=9.794). A new concept of aqueous battery, based on hybridization of carbon anode and calcium vanadium oxide cathode, combined with Ca-containing aqueous electrolyte, was also propounded. The performance of the constructed hybrid cell and its comparison with the commercial aqueous model will be published.
In summary, the project results, which provided a lot of fundamental and applied knowledge in the energy storage field, are published in 12 international journal papers and 19 conference announcements, with the best impact factor of 20.831. Project coordinator was invited to attend two international conferences in 2023, ”MATSUS23: #SusBat – Enabling Beyond Classical Li-ion Batteries through materials development and sustainability”, Valencia, Spain (invited speaker) https://www.nanoge.org/…/susbat-enabling-beyond… and ‘’ISNRE2023 – International summit on non-renewable and renewable energy’’, London, England (keynote speaker) https://www.spectrumconferences.com/2023/isnre .
To develop new metal-doped vanadium oxide as a cathode for multivalent-ion batteries with an improved performance than that of the lithium and new heteroatom-and/or metal-doped carbon as electrode for multivalent-ion supercapacitors. Key issues of poor capability, of both battery (metal-doped vanadium-oxide) and capacitor (carbon) electrodes, to store calcium, magnesium or aluminum ions, will be addressed.
To understand the chemical mechanism occurring at the electrode/electrolyte interface during charging/discharging of developed materials. By understanding these interfacial processes on a fundamental level, adequate chemical strategies for capacity improvement will be developed.
Developed Li and Co-free materials will be combined with Li-free aqueous electrolyte in a hybrid cell capable of storing more energy than its lithium analogue and commercial aqueous batteries.
Li-ion energy storage technology is experiencing a huge expansion. However, large-scale applications of Li-ion batteries are seriously limited by:
- limited lithium resources
- cost and safety issues of Li-ion battery due to the presence of Li, Co, and organic electrolyte.
These issues have driven current research toward more sustainable energy storage technologies.
Multivalent-ion batteries could be one of the solutions to solve the lithium-related issues, reduce the battery production costs, and simplify production.
Therefore, the research of novel, cost-effective, and safe materials suitable for electrodes for multivalent-ion batteries is of great importance, and the HiSuperBat project will focus on these central research questions.