University of Oulu

R. Sliz, J. Valikangas, P. Vilmi, T. Hu, U. Lassi and T. Fabritius, "Replacement of NMP solvent for more sustainable, high-capacity, printed Li-ion battery cathodes," 2021 IEEE 16th Nanotechnology Materials and Devices Conference (NMDC), 2021, pp. 1-5, doi: 10.1109/NMDC50713.2021.9677509

Replacement of NMP solvent for more sustainable, high-capacity, printed Li-ion battery cathodes

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Author: Sliz, Rafal1; Välikangas, Juho2; Vilmi, Pauliina1;
Organizations: 1Optoelectronics and Measurement Techniques Unit, University of Oulu, 90570 Oulu, Finland
2Unit of Sustainable Chemistry, University of Oulu, 90570 Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.9 MB)
Persistent link: http://urn.fi/urn:nbn:fi-fe2022022320590
Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2022-02-23
Description:

Abstract

The production methods of Li-ion batteries need to be adapted for the goals of a more sustainable future. This research focuses on replacing toxic NMP with less harmful solvents, without compromising the batteries’ performance. In this research, the novel NCM88 material has been used to fabricate the cathode layers of Li-ion batteries. Two fabrication methods (blade coating and screen printing) and two different slurry/ink formulations (NMP- and DMF-based) have been analysed. Results indicate that screen-printed cathodes fabricated with DMF-based slurries perform similarly to those fabricated through blade-coating NMP slurries.

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ISBN: 978-1-6654-1892-8
ISBN Print: 978-1-6654-4653-2
DOI: 10.1109/NMDC50713.2021.9677509
OADOI: https://oadoi.org/10.1109/NMDC50713.2021.9677509
Host publication: 2021 IEEE 16th Nanotechnology Materials and Devices Conference (NMDC)
Conference: IEEE Nanotechnology Materials and Devices Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Subjects:
DMF
NMC
NMP
Funding: This research was funded by the EU/Interreg Nord - Interregional cooperation project (Project SolBat, grant no. 20202885).
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