Alina Toktamyssova

• Toktamyssova, Alina; Wragg, David Stephen; Kathribail, Anish Raj & Koposov, Alexey (2026). Battery-Grade Hard Carbon for Na-ion Batteries. Full text in Research Archive Show summary

  Compared to its well spread Li-ion batteries (LIBs) predecessor, Na-ion batteries (NIBs) technology offers a potentially more environmentally friendly alternative with some performance advantages. Cost-effectiveness, safety, balance of power and energy density make NIBs as a preferable option for use in large-scale energy storage systems. Currently, the research in the field of NIBs is mainly focused on active materials with the aim of improving performance characteristics. Among many materials used for NIBs anodes, hard carbon (HC) materials are the most popular choice for commercial batteries or prototypes. However, the choice of precursors severely affects the electrochemical performance of these materials, making direct preparation of HC with programmed properties almost impossible. In this study, a comprehensive evaluation of potential precursors for HC anodes that are accessible in Norway will be beneficial to the greater scientific community. The application of a wide variety of characterization techniques for the different HC materials will help reinforce the basic understanding by deepening the comprehension of the basic relationships between the precursor, processing into HC, and final cell characterizations. It will be possible to fully correlate structural features with electrochemistry through operando characterization. The selection of the precursors for the project was driven by their scalability and local availability: they come from domestic sources, including industrial carbon provided by the industry partners and forestry waste. The main outcome of the proposed research is the development of low-cost battery-grade HCs with low environmental impact, stable and predictable electrochemical performance.

• Wragg, David Stephen; Kathribail, Anish Raj; Berdiell, Izar Capel; Koposov, Alexey & Toktamyssova, Alina (2026). In situ and Operando studies of Hard Carbon. Full text in Research Archive

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