Electrochemical and multinuclear solid-state NMR studies of tin composite oxide glasses as anodes for Li ion batteries

Electrochemical and multi-nuclear solid-state NMR studies of various tin oxide and two tin composite oxide (TCO Sn1.0Al0.42B0.56P0.40O3.6 and Sn-rich TCO Sn1.5Al0.42B0.56P0.40O4.2) samples are described, which give a coherent picture of the different processes occurring within these systems. 6,7Li NMR results demonstrate that the agglomeration of Li–Sn domains is inhibited in TCO; in contrast, in SnO, the aggregation of particles is observed. …