Synthesis and electrochemical properties of Li [Ni0. 8Co0. 1Mn0. 1] O2 and Li [Ni0. 8Co0. 2] O2 via co-precipitation
Spherical Li [Ni0. 8Co0. 2− xMnx] O2 (x= 0, 0.1) with phase-pure and well-ordered layered
structure have been synthesized by heat-treatment of spherical [Ni0. 8Co0. 2− xMnx](OH) 2
and LiOH· H2O precursors. The structure, morphology, electrochemical properties, and
thermal stability of Li [Ni0. 8Co0. 2− xMnx] O2 (x= 0, 0.1) were studied. The average particle
size of the powders was about 10–15μm and the size distribution was narrow due to the
homogeneity of the metal hydroxide [Ni0. 8Co0. 2− xMnx](OH) 2 (x= 0, 0.1). The Li [Ni0 …
structure have been synthesized by heat-treatment of spherical [Ni0. 8Co0. 2− xMnx](OH) 2
and LiOH· H2O precursors. The structure, morphology, electrochemical properties, and
thermal stability of Li [Ni0. 8Co0. 2− xMnx] O2 (x= 0, 0.1) were studied. The average particle
size of the powders was about 10–15μm and the size distribution was narrow due to the
homogeneity of the metal hydroxide [Ni0. 8Co0. 2− xMnx](OH) 2 (x= 0, 0.1). The Li [Ni0 …
Spherical Li[Ni0.8Co0.2−xMnx]O2 (x=0, 0.1) with phase-pure and well-ordered layered structure have been synthesized by heat-treatment of spherical [Ni0.8Co0.2−xMnx](OH)2 and LiOH·H2O precursors. The structure, morphology, electrochemical properties, and thermal stability of Li[Ni0.8Co0.2−xMnx]O2 (x=0, 0.1) were studied. The average particle size of the powders was about 10–15μm and the size distribution was narrow due to the homogeneity of the metal hydroxide [Ni0.8Co0.2−xMnx](OH)2 (x=0, 0.1). The Li[Ni0.8Co0.2−xMnx]O2 (x=0, 0.1) delivered a discharge capacity of 197–202mAhg−1 and showed excellent cycling performance. Compared to Li[Ni0.8Co0.2]O2, Li[Ni0.8Co0.1Mn0.1]O2 exhibited greater thermal stability resulting from improved structural stability due to Mn substitution.
Elsevier
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