Sun, YK Oh, IH Kim, KY 2024-01-21T18:10:24Z 2024-01-21T18:10:24Z 2021-09-04 1997-08 0959-9428 https://pubs.kist.re.kr/handle/201004/143691 Layered HT (high temperature)-LiCo0.5Ni0.5O2 powders, which are of potential interest as cathode materials for lithium secondary batteries, have been synthesized by a sol-gel method using poly(acrylic acid)(PAA) as a chelating agent. This method provided a variety of advantages of the processing conditions over the conventional solid-state reaction method. High-quality polycrystalline HT-LiCo0.5Ni0.5O2 powders of very uniformly sized particulates with an average particle size of 0.4-2 mu m could be conveniently obtained at a comparatively low calcination temperature of 600 degrees C and short calcination time of 1 h in air. An electrochemical study showed that the LiCo0.4Ni0.5O2 powders had high capacity and good cycling behaviour for lithium secondary batteries. English ROYAL SOC CHEMISTRY X-RAY-DIFFRACTION LITHIUM BATTERIES CRYSTAL-STRUCTURE CATHODE MATERIAL LOW-TEMPERATURE LINIO2 LIMN2O4 LICOO2 INTERCALATION PRECURSORS Synthesis of LiCo0.5Ni0.5O2 powders by a sol-gel method Article 10.1039/a607550i 1 JOURNAL OF MATERIALS CHEMISTRY, v.7, no.8, pp.1481 - 1485 JOURNAL OF MATERIALS CHEMISTRY 7 8 1481 1485 scie scopus A1997XQ20900032 2-s2.0-0000061492 Chemistry, Physical Materials Science, Multidisciplinary Chemistry Materials Science Article X-RAY-DIFFRACTION LITHIUM BATTERIES CRYSTAL-STRUCTURE CATHODE MATERIAL LOW-TEMPERATURE LINIO2 LIMN2O4 LICOO2 INTERCALATION PRECURSORS LiCo0.5Ni0.5O2 powders sol-gel