a, XRD patterns of the discharge products of batteries with C-LiXZM and the organic electrolyte after the first discharge. b, Li 1s XPS spectra of LiXZM before and after cycling. The surface of the LiXZM adjacent to the cathode side was characterized by XPS after cycling, and no discharge products of Li2O2 were detected. c, EIS spectrum of LiXZM after discharge. The ionic conductivity after discharge is 2.71 × 10−4 S cm−1, showing no notable difference from that before discharge (2.65 × 10−4 S cm−1). d, Terminal discharge voltage of the SSLABs with C-LiXZM compared with those of the Li–air batteries with organic electrolyte at 500 mA g−1, 500 mAh g−1 in ambient air (309 versus 162 cycles), and 500 mA g−1, 1,000 mAh g−1 in dry oxygen (276 versus 169 cycles). e, FTIR spectra of the discharge products in the SSLAB with C-LiXZM after 150 cycles.