University of Oulu

R. Sliz et al., "Fabrication of high-capacity NMC cathodes using spray printing technique," 2023 IEEE 23rd International Conference on Nanotechnology (NANO), Jeju City, Korea, Republic of, 2023, pp. 363-366, doi: 10.1109/NANO58406.2023.10231244.

Fabrication of high-capacity NMC cathodes using spray printing technique

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Author: Sliz, Rafal1; Hannila, Esa1; Roy, Ivy Saha1;
Organizations: 1Optoelectronics and Measurement Techniques Unit, University of Oulu, Oulu, Finland
2Sustainable Chemistry Research Unit, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.5 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2023
Publish Date: 2023-10-02


While current Li-ion liquid electrolyte batteries provide satisfactory performance, there is a growing need for more adaptable and sustainable fabrication methods. Among the available printing methods, spray coating stands out as exceptionally adjustable, enabling easy up- and down-scaling, high-resolution features (down to tens of μm ), 3D compatibility, and the use of a wide range of ink formulations, including those containing large particles (>5 μm). Moreover, spray coating generates little waste, making it a fully sustainable fabrication process that is also suitable for solid-electrolyte deposition. In this study, spray coating was used to fabricate LiNi0.88Mn0.03C00.09O₂ (NMC88) cathodes using dimethylformamide (DMF) ink instead of the toxic N-methyl-2-pyrrolidone (NMP). The printed cathodes had a relatively low roughness (Rq 3.4 μm and Ra 2.7 μm) prior to calendering, as revealed by morphological analysis. Coin cells and pouch cells were then prepared using the fabricated cathodes for electrochemical characterization. The pouch cells demonstrated very repeatable behavior and 15 % capacity fade after 1000 cycles.

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Series: Proceedings of the IEEE Conference on Nanotechnology
ISSN: 1944-9399
ISSN-E: 1944-9380
ISSN-L: 1944-9399
ISBN: 979-8-3503-3346-6
ISBN Print: 979-8-3503-3347-3
Pages: 363 - 366
DOI: 10.1109/nano58406.2023.10231244
Host publication: 2023 IEEE 23rd International Conference on Nanotechnology (NANO)
Conference: IEEE International Conference on Nanotechnology
Type of Publication: A4 Article in conference proceedings
Field of Science: 221 Nanotechnology
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