Preparation and characterization of macroporous Li1.2Mn0.54Ni0.13Co0.13O2 cathode material for lithium-ion batteries via aerogel template

One-pot facile co-precipitation synthesis of the layered Li1 + x (Mn0.6Ni0.2Co0.2)1 − x O2 as cathode materials with outstanding performance for lithium-ion batteries

“…Figure 1b shows the XRD patterns of the active materials. The diffraction peaks except for the low intensity part within 20°and 25°reflect a hexagonal α-NaFeO 2 layered structure with R-3m space group [13,35,36]. The small superlattice peaks observed between 20°and 25°represent the existence of monoclinic Li 2 MnO 3 phase with C2/m space group [37], conforming to the LiMn 6 cation arrangement in the transition metal layers of the extremely small Li 2 MnO 3 regions [9].…”

“…5a, Figure 5b shows the equivalent circuit of the Nyquist plots. R e , CPE f , and CPE ct stand for the solution impedance, non-ideal capacitance of the surface layer, and non-ideal capacitance of the double layer, respectively [9,13]. The fitting results of R e , R f , and R ct are listed in Table 1 Two main sharp oxidation peaks in the charging state can be discerned in the initial cycle, located at 4.14 and 4.63 V, respectively.…”

“…Nonetheless, much effort has been made to explore an alternative cathode material to substitute for LiCoO 2 on account of its toxicity, high cost, and insecurity [12,13]. In this regard, Li-rich layered cathodes written as Li 1 + x [M] 1 − x O 2 (M = Mn, Ni, Co, etc.…”

Influence of Temperature on the Performance of LiNi1/3Co1/3Mn1/3O2 Prepared by High‐Temperature Ball‐Milling Method

“…e material synthesized by the solid-phase method has low impurity and capacity, while coprecipitation method could solve this problem. Some approaches such as sol-gel method, [15][16][17], microemulsion method [18], microwave method [19], spray pyrolysis [20], and combustion method [21] were studied in lab scale to prepare high-performance materials, but all these approaches are usually of high costs, have complicated processes, and are not environment-friendly.…”

High-Rate Capability of Lithium-Rich Layered Li1.2Ni0.18Mn0.59Co0.03O2 Cathode Material Prepared from Size-Regulated Precursor Fine Particles

“…[16][17][18][19] Of these, the last one is of particular importance in determining the physical limitation of the materials because their electrochemical properties are sensitively determined by several factors, such as the compatibility of the key compounds forming the final structural architecture, and the synthetic conditions of the materials. For example, nano-sized electrochemical active particles could reflect their functional characteristics, such as a higher surface area, in minimizing the path length of the particles and accelerating the power supply.…”