Investigation of the Irreversible Capacity Loss in the Layered LiNi[sub 1∕3]Mn[sub 1∕3]Co[sub 1∕3]O[sub 2] Cathodes

The irreversible capacity (IRC) loss in the first cycle at 3.0-4.6 V of layered cathodes has been investigated as a function of synthesis temperature (600-900°C), and compared with that of . The IRC values in both the systems increase with decreasing synthesis temperature and show a linear relationship with the Brunauer-Emmett-Teller surface area although the increase is faster with . Additionally, the IRC is found to exhibit a relationship to an irreversible anodic peak observed in cyclic voltammograms at around 4.5 V, which becomes prominent with decreasing synthesis temperature and increasing Mn content in .