Frontiers in Energy Research | |
Ag-Coated Cu/Polylactic Acid Composite Filament for Lithium and Sodium-Ion Battery Current Collector Three-Dimensional Printing via Thermoplastic Material Extrusion | |
Michel Armand1  Stephane Panier1  Hyeonseok Kim2  Sylvie Grugeon2  Alexis Maurel3  Loic Dupont3  Roberto Russo4  | |
[1] Amiens, France;Amiens, France;Amiens, France;Amiens, France;Amiens, France;Amiens, France;Amiens, France;Amiens, France;Morêt-Sur-Loing, France; | |
关键词: lithium-ion battery; current collector; material extrusion; 3D-printing; composites; | |
DOI : 10.3389/fenrg.2021.651041 | |
来源: Frontiers | |
【 摘 要 】
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 Mn ∼ 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 Li2-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.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO202107132523608ZK.pdf | 2155KB | download |