Ronan Njøs Dunne

Mr. Ronan Njøs Dunne


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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15 October 2024 in Batteries
Verified
Journal Article
Open access
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RDRonan Njøs Dunne
Ronan Njøs Dunne
SSSimon Birger Byremo Solberg
Simon Birger Byremo Solberg
MAMahshid Nejati Amiri
Mahshid Nejati Amiri
EEEzeigwe Ezeigwe
Ezeigwe Ezeigwe
Jacob Joseph LambJacob Joseph Lamb
Jacob Joseph Lamb
Odne Stokke BurheimOdne Stokke Burheim
Odne Stokke Burheim
The specific energy of lithium-ion batteries (LIBs) can be enhanced through various approaches, one of which is increasing the proportion of active materials by thickening the electrodes. However, this typically leads to the battery having lower performance at a high cycling rate, a phenomenon commonly known as rate capacity retention. One solution to this is perforating the electrode, by creating channels or corrugations in the active electrode material, either as holes or as channels. This is known to reduce the rate capacity retention effect, but in order to engineer this better, a simplified transport process analysis needs to be established. In this paper, we propose a classic electrochemical analysis based on voltage–charge cycling measurements in order to obtain a classical mass transport coefficient, hm, that is further used as a main indicator for electrode design quality assessment. We also demonstrate theoretically and experimentally how the mass transfer coefficient, hm, can be determined and how it changes as the electrode layer thickness increases, with and without electrode corrugations.