Advances in Manufacturing ›› 2025, Vol. 13 ›› Issue (2): 462-475.doi: 10.1007/s40436-024-00514-z

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Combining 3D printing of copper current collectors and electrophoretic deposition of electrode materials for structural lithium-ion batteries

Ana C. Martinez1,2, Alexis Maurel1,2, Bharat Yelamanchi3, A. Alec Talin4, Sylvie Grugeon5,6, Stéphane Panier5,7, Loic Dupont5,6, Ana Aranzola1, Eva Schiaffino1, Sreeprasad T. Sreenivasan2, Pedro Cortes3, Eric MacDonald1,8   

  1. 1. Department of Aerospace and Mechanical Engineering, The University of Texas at El Paso, El Paso, TX 79968, USA;
    2. Department of Chemistry and Biochemistry, The University of Texas at El Paso, El Paso, TX 79968, USA;
    3. Department of Civil, Environmental, and Chemical Engineering, Youngstown State University, Youngstown, OH 44555, USA;
    4. Sandia National Laboratories, Livermore, CA 94550, USA;
    5. Laboratoire de Réactivité et de Chimie des Solides, UMR CNRS 7314, Hub de l'Énergie, Université de Picardie Jules Verne, 80039 Amiens Cedex, France;
    6. RS2E, Réseau Français sur le Stockage Électrochimique de l'Énergie, FR CNRS 3459, 80039 Amiens Cedex, France;
    7. Laboratoire des Technologies Innovantes, LTI-EA 3899, Université de Picardie Jules Verne, 80025 Amiens, France;
    8. Manufacturing Demonstration Facility, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
  • Received:2023-08-31 Revised:2023-10-19 Published:2025-05-16
  • Contact: Ana C. Martinez,E-mail:acmartinezm@utep.edu;Alexis Maurel,E-mail:amaurel@utep.edu E-mail:acmartinezm@utep.edu;amaurel@utep.edu;emac@utep.edu

Abstract: Serving as a proof of concept, additive manufacturing and electrophoretic deposition are leveraged in this work to enable structural lithium-ion batteries with load-bearing and energy storage dual functionality. The preparation steps of a complex 3D printed copper current collector, involving the formulation of a photocurable resin formulation, as well as the vat photopolymerization process followed by a precursors-based solution soaking step and thermal post-processing are presented. Compression and microhardness testing onto the resulting 3D printed copper current collector are shown to demonstrate adequate mechanical performance. Electrophoretic deposition of graphite as a negative electrode active material and other additives was then performed onto the 3D printed copper collector, with the intention to demonstrate energy storage functionality. Half-cell electrochemical cycling of the 3D multi-material current collector/negative electrode versus lithium metal finally demonstrates that structural battery components can be successfully obtained through this approach.

The full text can be downloaded at https://link.springer.com/article/10.1007/s40436-024-00514-z

Key words: Copper manufacturing, 3D printing, Structural batteries, Vat photopolymerization, Electrophoretic deposition