LiCo1−xAlxO2 (0 ≤ x ≤ 0.05) cathode powders prepared from the nanosized Co1−xAlxOy precursor powders
作者： Seo Hee Ju , Hee Chan Jang , Yun Chan Kang
DOI: 10.1016/J.MATCHEMPHYS.2008.06.011
关键词: Dopant 、 Particle 、 Metallurgy 、 Ceramic 、 Morphology (linguistics) 、 Materials science 、 Aluminium 、 Nanometer size 、 Spray pyrolysis 、 Cathode 、 Chemical engineering
摘要: Abstract Fine LiCo 1– x Al O 2 (0 ≤ ≤ 0.05) cathode powders were prepared by the solid-state reaction method using nanosized Co 1− y precursor with various concentrations of aluminum used as dopant. The spray pyrolysis had nanometer size and a regular morphology after post-treatment at 800 °C. dopant decreased mean particle sizes powders. LiCoO 0.95 0.05 1.1 0.52 μm, respectively. initial discharge capacities 0.99 0.01 151 161 mAh g −1 , capacity 50th cycle was 90% their maximum capacity. However, 0.97 0.03 91, 84, 82%, respectively, respective capacities.
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