Lu C.-H.Lin Y.-K.2019-05-132019-05-13200903787753https://scholars.lib.ntu.edu.tw/handle/123456789/407437Layer-structured LiNi1/3Co1/3Mn1/3O2 was successfully synthesized via a reverse microemulsion (R£gE) route. Well-crystallized nanosized (around 45 nm) powders were obtained with calcination at 800 ¢XC. The Rietveld refinement data revealed low degree of cationic displacement in the obtained powders. Within the voltage range of 2.5-4.5 V, the microemulsion-derived LiNi1/3Co1/3Mn1/3O2 delivered 187.2 and 195.5 mAh g-1 at room temperature and 55 ¢XC, respectively. The prepared powders were found to exhibit low irreversible capacity and good capacity retention. Microemulsion-derived LiNi1/3Co1/3Mn1/3O2 demonstrated better rate capability than the solid-state derived samples, owing to the reduced particle size and increased surface area. Once the upper cut-off voltage reached 4.6 V, the capacity faded more rapidly than in other operation potential ranges. In this study, the microemulsion process effectively improved the electrochemical characteristics of LiNi1/3Co1/3Mn1/3O2. This soft chemical route possesses a great potential for synthesizing other types of cathode materials with multiple cations. ? 2009.Cathode materialsLayered structureMicroemulsionNanosized particlesjournal article10.1016/j.jpowsour.2008.12.0362-s2.0-62349103261https://www.scopus.com/inward/record.uri?eid=2-s2.0-62349103261&doi=10.1016%2fj.jpowsour.2008.12.036&partnerID=40&md5=24909900aa28e8329843e01303646186