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Ag-Coated Cu/Polylactic Acid Composite Filament for Lithium and Sodium-Ion Battery Current Collector Three-Dimensional Printing via Thermoplastic Material Extrusion

Abstract : This article focuses on the development of polylactic acid- (PLA-) based thermoplastic composite filament for its use, once 3D printed via thermoplastic material extrusion (TME), as current collector at the negative electrode side of a lithium-ion battery or sodium-ion battery. High electronic conductivity is achieved through the introduction of Ag-coated Cu charges, while appropriate mechanical performance to allow printability was maintained through the incorporation of poly(ethylene glycol) dimethyl ether average M-n similar to 500 (PEGDME500) as a plasticizer into the PLA polymer matrix. Herein, thermal, electrical, morphological, electrochemical, and printability characteristics are discussed thoroughly. While Ag-Li alloy formation is reported at 0.1V upon cycling, its use with active materials such as Li4Ti5O12 (LTO) or Li-2-terephthalate (Li2TP) operating at a plateau at higher potential is demonstrated. Furthermore, its ability to be used with negative electrode active material of sodium-ion battery technology in a wide potential window is demonstrated.
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https://hal-u-picardie.archives-ouvertes.fr/hal-03608664
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Soumis le : mardi 15 mars 2022 - 09:00:16
Dernière modification le : vendredi 1 avril 2022 - 03:55:22

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Alexis Maurel, Hyeonseok Kim, Roberto Russo, Sylvie Grugeon, Michel Armand, et al.. Ag-Coated Cu/Polylactic Acid Composite Filament for Lithium and Sodium-Ion Battery Current Collector Three-Dimensional Printing via Thermoplastic Material Extrusion. FRONTIERS IN ENERGY RESEARCH, 2021, 9, ⟨10.3389/fenrg.2021.651041⟩. ⟨hal-03608664⟩

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