Shlyakhtin, OA Choi, SH Yoon, YS Oh, YJ 2024-01-21T05:33:03Z 2024-01-21T05:33:03Z 2021-09-03 2005-02-16 0378-7753 https://pubs.kist.re.kr/handle/201004/136729 Synthesis of Li1+xNi0.5Mn0.5O2+delta (x = 0, 0.3) cathode materials for secondary lithium batteries was performed by freeze-drying method using various chemical precursors. Electrochemical performance of materials demonstrates considerable dependence on their chemical prehistory and Li stoichiometry. Increase in duration of the final annealing at 900degreesC since 1-12 h results in decreasing capacity values for all x and chemical prehistories. Observed capacity fall is explained by smaller grain size and, therefore, shorter Li diffusion pathways in the samples obtained using short time annealing. (C) 2004 Elsevier B.V. All rights reserved. English ELSEVIER X-RAY BEHAVIOR OXIDES Accelerated synthesis and electrochemical performance of Li1+x(Ni0.5Mn0.5)O2+delta cathode materials Article 10.1016/j.jpowsour.2004.08.052 1 JOURNAL OF POWER SOURCES, v.141, no.1, pp.122 - 128 JOURNAL OF POWER SOURCES 141 1 122 128 scie scopus 000227046400016 2-s2.0-12444314084 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article X-RAY BEHAVIOR OXIDES secondary Li batteries cathode materials Li-Ni-Mn oxides freeze-drying particle size effect