Improving the performance of a SnS2 cathode with interspace layer engineering using a Na+ insertion/extraction method for aqueous zinc ion batteries

Na ion insertion/extraction in a layered structure of SnS 2 leads to considerably high interspace layers SnS 2 (SnS 2 -HIL) from 0.86 to 1.10 nm. It enables higher Zn 2+ storage capacity in SnS 2 -HIL cathodes.