Synthesis of High-performance LiNi0.6Co0.2Mn0.2O2 Cathode Material for Lithium-ion Batteries by Using a Four Times Liquid Nitrogen Quenching Method and an Al2O3 Coating Method
Abstract:Based on the normal co-precipitation method to synthesize LiNi0.6Co0.2Mn0.2O2 cathode material, we propose a novel approach using a liquid nitrogen quenching method to synthesize Al2O3 coated LiNi0.6Co0.2Mn0.2O2 cathode material. In the whole process, liquid nitrogen was used four times to quench the materials from high temperatures (50 °C, 750 °C, 90 °C, 500 °C) to −196 °C rapidly in four stages. Various characterizations proved that this method could help to improve the electrochemical performance of lithium… Show more
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