Intense pulsed light-induced Sn@SnO@C core-shell nanocomposite with controlled air oxidation from inkjet-printed Sn nanoparticles for advanced binder-free Li-ion batteries

Reslan J. Kassem O. Barnier V. Sao-Joao S. Yendigoyeva A. Djenizian T. Saadaoui M.
15 June 2025 Elsevier Ltd

Journal of Energy Storage
2025 #121

Tin (Sn) is a prominent anode material for improving the performances of Li-ion batteries (LIBs) thanks to its abundance and high theoretical capacity. However, Sn is hardly applied in industry because it suffers from large volume expansion during cycling, resulting in poor reliability. Although various synthesis methods have been applied to overcome these issues, most strategies focus on combining nano-sized Sn active material with nanoporous carbonaceous binders to buffer volume expansion and improve intrinsic electrical conductivity. However, this implies a reduction in the fraction of active Sn nanomaterial by the binders and contradicts the trend towards increasing the energy density of LIBs. In this paper, we propose a facile and ultrafast method to fabricate binder-free Sn electrodes at ambient conditions using the intense pulsed light (IPL) method. Sn nanoparticles (Sn NPs) inks (10 and 20 nm) were first prepared using chemical methods and inkjet-printed onto copper foil before IPL. We show that meticulous tuning of the IPL parameters to the optimal condition results in heating above the melting temperature of Sn NPs while maintaining the film morphology and nanoparticle size. This pre-melting condition leads to the local transformation of organic ligands into an amorphous carbon shell, reduces the thickness of the native Sn oxide shell and subsequently enhances electron transfer between Sn NPs. Finally, we demonstrate that these electrically conductive Sn anodes exhibit outstanding specific capacities of (over 700 mAh g⁻¹ after 200 cycles at 1C) with good cycling stability and rate capability.

Inkjet printing , Intense pulse light , Light-matter interaction , Lithium-ion battery , Sn anodes , Sn nanoparticles

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Mines Saint-Etienne, Centre CMP, Departement FEL, Gardanne, F - 13541, France
Mines Saint-Etienne, CNRS, UMR 5307 LGF, Centre SPIN, Saint-Etienne, F - 42023, France
Al-Farabi Kazakh National University, Center of Physical-Chemical Methods of Research and Analysis, Tole bi str., 96A, Almaty, Kazakhstan

Mines Saint-Etienne
Mines Saint-Etienne
Al-Farabi Kazakh National University

10 лет помогаем публиковать статьи Международный издатель

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