Electrochemical properties of graphite/nylon electrodes additively manufactured by laser powder bed fusion
Pastushok, O., Kivijärvi, L., Laakso, E., Haukka, M., Piili, H., & Repo, E. (2023). Electrochemical properties of graphite/nylon electrodes additively manufactured by laser powder bed fusion. Electrochimica Acta, 440, Article 141732. https://doi.org/10.1016/j.electacta.2022.141732
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Electrochimica ActaAuthors
Date
2023Discipline
Epäorgaaninen ja analyyttinen kemiaEpäorgaaninen kemiaInorganic and Analytical ChemistryInorganic ChemistryCopyright
© 2022 The Author(s). Published by Elsevier Ltd.
Nowadays, additive manufacturing, known as 3D printing, is vigorously employed at various enterprises due to the ability of industrial series production and customization in conjunction with geometry freedom. While, material design and fabrication of composite materials, meeting the desired architecture and properties, is another promising application of additive manufacturing. For instance, additive manufacturing of the material exhibiting electrochemical properties is beneficial for the development of freestanding electrodes that might be used in electrochemical energy storage systems. Herein, the graphite/nylon composite with a high carbon ratio of 30 wt% was produced by laser powder bed fusion to promote the development of the additive manufacturing of electrochemical energy storage devices. The material characterization of the additively manufactured graphite/nylon electrode demonstrates the porous structure with uniform distribution of the compounds, and the absence of chemical interactions between them during laser powder bed fusion. The electrochemical properties of the composite were investigated in acidic, neutral, and alkaline electrolytes. The tested additively manufactured electrodes demonstrate a capacitive behaviour and a stable electrochemical performance with average capacitance retention of 95%. The findings open new frontiers for the development and improvement of the production of electrochemically active materials by additive manufacturing with consideration to design freedom and customization.
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https://converis.jyu.fi/converis/portal/detail/Publication/176511992
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The authors acknowledge European Regional Development Fund, REACT-EU, South-Savo Regional Council (Project no. A78710), Academy of Finland (Grant no. 330076 and 325002) and Maa- ja vesitekniikan tuki ry (Grant no. 13-8210-7). The research was also supported by the encouragement grant from Finnish Foundation for Technology Promotion (Grant no. 8168). The authors are grateful to Dr. Liisa Puro and Dr. Timo Laakso for carrying out XRD, FTIR, SEM, and Raman analyses. ...License
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