High rate capability pure Sn-based nano-architectured electrode assembly for rechargeable lithium batteries

Laurent Bazin (1) , Sagar N. Mitra (1) , Pierre-Louis Taberna (1) , Philippe Poizot (2) , Marie Gressier (1) , Marie-Joëlle Menu (1) , Antoine Barnabé (1) , Patrice Simon (1) , Jean‐marie Tarascon (2)

1 CIRIMAT - Centre interuniversitaire de recherche et d'ingenierie des matériaux
2 LRCS - Laboratoire réactivité et chimie des solides - UMR CNRS 7314

Newhigh surface area nano-architectured copper current collectors have been designed based on simple electrodeposition method. The nano-architectured electrode design not only increases the effective surface area of the electrode but it is also very suitable for sustaining the mechanical and structural strain during electrochemical reaction. In this work, a nano-architectured Sn anode for Li-ion battery, based on Li–Sn alloying reaction, delivers very high cycle life and good power performance compared to planar tin films. This electrode could be successfully used in the field of 3D microbatteries.

Mots clés: Lithium-ion; Tin; Nanostructure; High rate; Electrolytic deposition; 3D microbatteries

Domaines: Matériaux

Laurent Bazin, Sagar N. Mitra, Pierre-Louis Taberna, Philippe Poizot, Marie Gressier, et al.. High rate capability pure Sn-based nano-architectured electrode assembly for rechargeable lithium batteries. Journal of Solid State Chemistry, 2009, 188 (2), pp.578-582. ⟨10.1016/j.jpowsour.2008.12.025⟩. ⟨hal-02003900⟩