Preparation and electrochemical characteristics of LiNi1/3Mn1/3Co1/3O2 coated with metal oxides coating

Modification of LiCo1/3Ni1/3Mn1/3O2 cathode material by CeO2-coating

“…For the bared material, the first discharge capacity is 165.8 mAh·g −1 , the coulombic efficiency is 85.5%; however, for the coated one, its first discharge capacity and coulombic efficiency reach 171.2 mAh·g −1 and 85.7%, both larger than those of the bared LiCo 1/3 Ni 1/3 Mn 1/3 O 2 . The result is similar to Ha et al [9] . When the coating amount increases to 3.0 wt%, the discharge capacity and coulombic efficiency decreases, researching to 159.0 mAh·g −1 and 82.6%, respectively.…”

“…The mechanism of the capacity fading of LiCo 1/3 Ni 1/3 Mn 1/3 O 2 is related to the abnormal increase in the total resistance. This abnormal increase in the total resistance was attributed to the change in the particle surface and the morphologies of the particles [9] . Ha et al [10][11][12] suggested that the presence of CeO 2 on the cathode particles could limit the direct contact of the active material with the electrolyte, improve interface stability and prevent dissolution of Mn and Ni ions in the electrolyte.…”

“…Some studies showed that C, ZrO 2 , TiO 2 , Al 2 O 3 , Al(OH) 3 coating on LiCo 1/3 Ni 1/3 Mn 1/3 O 2 could improve the electrochemical properties [7][8][9] . Recently, reports pointed out that the CeO 2 coating on LiCoO 2 , LiMn 2 O 4 and LiNi 0.8 Co 0.2 O 2 had a benefit to its electrochemical performance [10][11][12] .…”

High-energy cathode materials for Li-ion batteries: A review of recent developments

“…The origins of these problems are mainly related to its low electronic conductivity, the dissolution of transition metal ions into the electrolyte, phase transitions, surface reactivity between the cathode and the electrolyte [52][53][54]. To improve the electrochemical performances of NCM, surface modification, elemental doping and fabricating nanostructured materials are commonly used.…”

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

“…In efforts to enhance and/or improve the cell performances for a variety of general cathode materials, there have been major approaches categorized as follows: one modifying the materials with a stable outer layer to protect from any undesirable sidereactions, [9][10][11] another reforming those based on suitable treatments to maximize their potential properties, [12][13][14][15] and lastly, arranging the crystal structures and morphologies of the materials. [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.…”