Thermal stability of ternary compounds in the Cu-Li-Sn system and phase transition of the Cu6Sn5 electrode: First-principles calculations and experiment

In Operando XANES Imaging of High Capacity Intermetallic Anodes for Lithium Ion Batteries

“…12 Sn ternary alloys have also been identified as high capacity anode materials. 13 Lou et al have reported a Cu 9 Sn 2 Se 9 nanoparticle anode with a reversible gravimetric capacity of 979.8 mAh g −1 after 100 cycles, which almost doubles previously reported values for CuSnS and pristine Cu 2 SnS 3 . 14 The main drawback for these advanced alloys could be the difficulty in scaling up the complex fabrication process for a ternary alloy.…”

“…The intermetallic Cu 6 Sn 5 has drawn substantial interest among the Sn-based intermetallic compounds. 15,16 Investigations of Cu 6 Sn 5 include first principle calculations and phase transition analysis on the electrode 13 and an array of fabrication methodologies. [17][18][19][20][21] The application of complex 3D microstructures 19,20 and distinct particle geometries 21,22 in these alloy electrodes are common.…”