Anode Materials: Stabilization of Sn Anode through Structural Reconstruction of a Cu–Sn Intermetallic Coating Layer (Adv. Mater. 42/2020)
Guanzhi Wang, Megan Aubin, Abhishek Mehta, Huajun Tian, Jinfa Chang, Akihiro Kushima, Yongho Sohn, Yang Yang
Abstract
The mechanical integrity and electrochemical cyclability of a Sn anode for next-generation lithium-ion batteries are significantly improved by a surface Cu–Sn intermetallic coating layer (ICL) through a structural reconstruction mechanism, which is presented by Yang Yang and co-workers in article number 2003684. The Cu–Sn ICL provides a regulatable and appropriate distribution of Cu to buffer the volume change of the Sn anode, mitigating the internal stress and suppressing mechanical degradation.
Topics & Concepts
AnodeIntermetallicMaterials scienceCoatingLayer (electronics)ElectrochemistryComposite materialInternal stressLithium (medication)MetallurgyElectrodeAlloyMedicinePhysical chemistryChemistryEndocrinologyConducting polymers and applications