Impact of Temperature Variations on the Electrochemical Performance of Batteries with Cyrene-Based, Spray-Printed NMC Cathodes
Nguyen, Hai H.; Valikangas, Juho; Hannila, Esa; Molaiyan, Palanivel; Keski-Korsu-Piekkari, Paula; Lassi, Ulla; Fabritius, Tapio; Sliz, Rafal (2024-08-22)
IEEE
22.08.2024
H. H. Nguyen et al., "Impact of Temperature Variations on the Electrochemical Performance of Batteries with Cyrene-Based, Spray-Printed NMC Cathodes," 2024 IEEE 24th International Conference on Nanotechnology (NANO), Gijon, Spain, 2024, pp. 533-538, doi: 10.1109/NANO61778.2024.10628581.
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© 2024 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:oulu-202412047045
https://urn.fi/URN:NBN:fi:oulu-202412047045
Tiivistelmä
Abstract
This study examines the effects of temperature influence, ranging from +20°C to −10°C, on the electrochemical performance of lithium-ion batteries with nickel manganese cobalt (NMC) cathodes that have been spray-printed using a sustainable solvent. In the cathode fabrication process, Cyrene-a sustainable, dipolar aprotic solvent-was used as a replacement for N-methyl-2-pyrrolidone (NMP) to enhance the eco-friendliness and safety of battery manufacturing. Blade-coated Cyrene-based NMC cathodes were used as a reference. The morphological and structural attributes of the spray-printed and blade-coated NMC cathodes were assessed using scanning electron microscopy and optical profilometry. Electrochemical performance was evaluated through cyclic voltammetry, varied C-rate charge-discharge cycling, and electrochemical impedance spectroscopy under different temperature conditions. Our results demonstrate that the Cyrene-based, spray-printed NMC cathodes exhibit electrochemical performance comparable to their blade-coated counterparts. Although performance degradation was observed at sub-zero temperatures-attributed to increased electrolyte viscosity and reduced lithium-ion mobility-the spray-printed cathodes maintained performance parity with those fabricated by blade-coating. This study offers significant insights into how temperature affects the operational efficiency of lithium-ion batteries with NMC cathodes fabricated via different methods, indicating that spray printing is a viable and sustainable alternative for producing NMC cathodes.
This study examines the effects of temperature influence, ranging from +20°C to −10°C, on the electrochemical performance of lithium-ion batteries with nickel manganese cobalt (NMC) cathodes that have been spray-printed using a sustainable solvent. In the cathode fabrication process, Cyrene-a sustainable, dipolar aprotic solvent-was used as a replacement for N-methyl-2-pyrrolidone (NMP) to enhance the eco-friendliness and safety of battery manufacturing. Blade-coated Cyrene-based NMC cathodes were used as a reference. The morphological and structural attributes of the spray-printed and blade-coated NMC cathodes were assessed using scanning electron microscopy and optical profilometry. Electrochemical performance was evaluated through cyclic voltammetry, varied C-rate charge-discharge cycling, and electrochemical impedance spectroscopy under different temperature conditions. Our results demonstrate that the Cyrene-based, spray-printed NMC cathodes exhibit electrochemical performance comparable to their blade-coated counterparts. Although performance degradation was observed at sub-zero temperatures-attributed to increased electrolyte viscosity and reduced lithium-ion mobility-the spray-printed cathodes maintained performance parity with those fabricated by blade-coating. This study offers significant insights into how temperature affects the operational efficiency of lithium-ion batteries with NMC cathodes fabricated via different methods, indicating that spray printing is a viable and sustainable alternative for producing NMC cathodes.
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