Surface of LiCo1/3Ni1/3Mn1/3O2 modified by CeO2-coating

Enhanced cycling stability and rate performance of Li[Ni 0.5 Co 0.2 Mn 0.3 ]O 2 by CeO 2 coating at high cut-off voltage

“…The capacity retention of sample-2 is about four times higher than that of sample-0. So the cycling stability of Li[Ni 0.5 Co 0.2 Mn 0.3 ]O 2 is obviously improved by CeO 2 coating layer which can act as a HF scavenger to offer good corrosion protection on the material surface during the chargeedischarge process [22,23].…”

Electrochemical effects of ALD surface modification on combustion synthesized LiNi1/3Mn1/3Co1/3O2 as a layered-cathode material

“…One quick solution is to prevent electrolyte/electrode interfacial reactions through the application of passive surface coatings. A variety of coatings, such as ZrO 2 , Al(OH) 3 , CeO 2 , and SnPO 4 have recently been shown to improve both the thermal stability and the rate capability of Li(Ni 1/3 Mn 1/3 Co 1/3 )O 2 [4][5][6][7][8]. However, Al 2 O 3 continues to be the most popular protective surface coating due to the high abundance of aluminum, the low cost of materials, and ease of film deposition.…”

Multifunctional Li2O-2B2O3 coating for enhancing high voltage electrochemical performances and thermal stability of layered structured LiNi0.5Co0.2Mn0.3O2 cathode materials for lithium ion batteries

“…[9,10] Surface modification with various coating materials including metal oxides, fluorides, and phosphates have been shown to be an effective strategy to alleviate both the mechanical and chemical degradation, thus improving the electrochemical performance of electrode materials including cycling behavior and rate capability. [11][12][13][14][15][16][17][18][19][20][21][22][23] However, aforementioned coating has significant influence on the penetration of lithium ion or/and electron through the coated layer, which will result in an increased polarization or decreased capacity. To solve these defects, some conductive polymers and fast ionic conductor materials were widely used as surface coating layer on the cathode active materials.…”