Structure and electrochemical behaviors of spherical Li1+xNi0.5Mn0.5O2+δ synthesized by rheological phase reaction method

Synthesis and Manipulation of Single-Crystalline Lithium Nickel Manganese Cobalt Oxide Cathodes: A Review of Growth Mechanism

“…Maintaining the rheological body during calcination is critical to obtain the single-crystalline NMC particles. Unfortunately, most liquid substances used in rheological reactions cannot exist at temperatures higher than 300 • C; the rhetorical body in the mixing or preheating process can only improve the element distribution, but the final product still inherits the polycrystalline and the agglomeration nature of the solid precursors (Xiao et al, 2004;Li et al, 2008Li et al, , 2014Li et al, , 2016Shi et al, 2009Shi et al, , 2014. Han et al used the conventional rheological reaction to uniformly insert the very fine nanoscale NiO and Co 3 O 4 into spherical amorphous MnO 2 at the first step; interestingly, during 950 • C calcination, the assembled nanostructured precursor easily melted and formed a glass-like rheological body, as displayed in Figures 1E,F. Eventually, well-dispersed singlecrystalline NMC111 particles of about 2-4 um were successfully obtained (Han et al, 2010).…”

Reduction of the lithium and nickel site substitution in Li1+xNi0.5Co0.2Mn0.3O2 with Li excess as a cathode electrode material for Li-ion batteries

“…The Li 1+x Ni 0.5 Mn 0.5 O 2+d material, they found that with lithium content increasing from 1.0 to 1.2, the initial discharge capacity and Coulombic efficiency are decreased [10]. Li 1.083 [Ni 1/3 Co 1/3 Mn 1/3 ]O 2 had a concentration of Ni 2+ -3b ions only 1.43%, and showed a better cycle property [11].…”