Objective 1.

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.

Objective 2.

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.

Objective 3.

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.

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