Improvement in electrochemical performances of LiNi0.8Co0.1Mn0.1O2 cathodeby CaCO3 surface coating
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In this paper, the structural properties and electrochemical performances of CaCO3 coated LiNi0.8Co0.1Mn0.1O2 cathode isinvestigated for next generation high-energy lithium-ion battery. The crystallinity and microstructure of the samples aremeasured via XRD, SEM and TEM. The thickness of thin and uniform coating layer is approximately 30.1 nm. The initialdischarge capacity and capacity retention of CaCO3 coated LiNi0.8Co0.1Mn0.1O2 cathode are 197.3 mAh g-1 and 83.1 % after70 cycles, respectively, superior performances as compared to pristine LiNi0.8Co0.1Mn0.1O2. The C aCO3 coating layer canreduce the Ni dissolution, lowering resistance between electrolyte and cathode.
Abstract
In this paper, the structural properties and electrochemical performances of CaCO3 coated LiNi0.8Co0.1Mn0.1O2 cathode isinvestigated for next generation high-energy lithium-ion battery. The crystallinity and microstructure of the samples aremeasured via XRD, SEM and TEM. The thickness of thin and uniform coating layer is approximately 30.1 nm. The initialdischarge capacity and capacity retention of CaCO3 coated LiNi0.8Co0.1Mn0.1O2 cathode are 197.3 mAh g-1 and 83.1 % after70 cycles, respectively, superior performances as compared to pristine LiNi0.8Co0.1Mn0.1O2. The C aCO3 coating layer canreduce the Ni dissolution, lowering resistance between electrolyte and cathode.
참고문헌 (12)
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