Making Room for Silicon: Including SiOx in a Graphite-Based Anode Formulation and Harmonization in 1 Ah Cells
dc.contributor.author | Landa Medrano, Imanol | |
dc.contributor.author | Urdampilleta, Idoia | |
dc.contributor.author | Castrillo, Iker | |
dc.contributor.author | Grande, Hans-Jürgen | |
dc.contributor.author | De Meatza, Iratxe | |
dc.contributor.author | Eguía Barrio, Aitor | |
dc.date.accessioned | 2024-04-12T14:50:14Z | |
dc.date.available | 2024-04-12T14:50:14Z | |
dc.date.issued | 2024-03-28 | |
dc.identifier.citation | Energies 17(7) : (2024) // Article ID 1616 | es_ES |
dc.identifier.issn | 1996-1073 | |
dc.identifier.uri | http://hdl.handle.net/10810/66638 | |
dc.description.abstract | Transitioning to more ambitious electrode formulations facilitates developing high-energy density cells, potentially fulfilling the demands of electric car manufacturers. In this context, the partial replacement of the prevailing anode active material in lithium-ion cells, graphite, with silicon-based materials enhances its capacity. Nevertheless, this requires adapting the rest of the components and harmonizing the electrode integration in the cell to enhance the performance of the resulting high-capacity anodes. Herein, starting from a replacement in the standard graphite anode recipe with 22% silicon suboxide at laboratory scale, the weight fraction of the electrochemically inactive materials was optimized to 2% carbon black/1% dispersant/3% binder combination before deriving an advantage from including single-wall carbon nanotubes in the formulation. In the second part, the recipe was upscaled to a semi-industrial electrode coating and cell assembly line. Then, 1 Ah lithium-ion pouch cells were filled and tested with different commercial electrolytes, aiming at studying the dependency of the Si-based electrodes on the additives included in the composition. Among all the electrolytes employed, the EL2 excelled in terms of capacity retention, obtaining a 48% increase in the number of cycles compared to the baseline electrolyte formulation above the threshold capacity retention value (80% state of health). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/es/ | |
dc.subject | lithium-ion cells | es_ES |
dc.subject | electrode optimization | es_ES |
dc.subject | silicon-based materials | es_ES |
dc.subject | pouch cells | es_ES |
dc.title | Making Room for Silicon: Including SiOx in a Graphite-Based Anode Formulation and Harmonization in 1 Ah Cells | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.date.updated | 2024-04-12T13:14:42Z | |
dc.rights.holder | © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/). | es_ES |
dc.relation.publisherversion | https://www.mdpi.com/1996-1073/17/7/1616 | es_ES |
dc.identifier.doi | 10.3390/en17071616 | |
dc.departamentoes | Química aplicada | |
dc.departamentoes | Química Orgánica e Inorgánica | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | |
dc.departamentoeu | Kimika aplikatua | |
dc.departamentoeu | Kimika Organikoa eta Ez-Organikoa | |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia |
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Except where otherwise noted, this item's license is described as © 2024 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/ 4.0/).