The need for energy storage capacity is drastically increasing because of the decarbonization of energy supply, i.e. replacement of the fossil energy supply by green intermittent renewable energy. In the B2B project, we propose organic radical polymer battery as an alternative technology to lithium batteries with the general aim of minimizing usage of any critical raw material in the designed devices. Overall, the strategy is to synthesize polyradicals as positive electrodes and optimize biocarbons for negative electrodes, as well as to combine these to one energy storage solution with nanocellulose-based gel electrolytes.
Main results
We have accomplished to narrow down the optimal processing parameters for biocarbons and elaborate the structure-performance relationships.
Implementation of the most promising materials into batteries is ongoing.
We have found a promising route to synthesize polymer-supported radical material for organic radical ion batteries, and optimization is ongoing, along with electrode preparation and electrochemical studies.
Publications (see also the list at the bottom of the page)
A. Iurchenkova, A. Kobets, Z. Ahaliabadeh, J. Kosir, E. Laakso, T. Virtanen, V. Siipola, J. Lahtinen, T. Kallio, The effect of the pyrolysis temperature and biomass type on the biocarbons characteristics, ChemSusChem 2024, 17, e202301005. https://doi.org/10.1002/cssc.202301005
L. Hakola, M. Smolander, T. Rauhala and M. Vilkman, Eco-Design and Circularity Guidelines for Printed Flexible Electronic Devices Based on a Holistic and Streamlined Sustainability Assessment, Electronics Goes Green 2024+ (EGG), Berlin, Germany, 2024, pp. 1-7, https://doi.org/10.23919/EGG62010.2024.10631176 (Conference proceedings)
Theses
Y. Al Haj, Nanocellulose-Derived Hydrogels and Aerogels: Advanced Applications in Sustainable Technologies, Doctoral thesis, Aalto University, 2024. https://urn.fi/URN:ISBN:978-952-64-2075-2
B. Wang, Synthesis of O3-type NaNi0.8Mn0.1Co0.1O2 cathode material for sodium-ion batteries, Master’s thesis, Aalto University, 2024. https://urn.fi/URN:NBN:fi:aalto-202411207197
Research Project Managers
Jaana Vapaavuori, Aalto
Taina Rauhala, VTT