Enhancing high-voltage electrochemical performance of LiNi0.7Mn0.15Co0.15O2 cathode materials with SiO2 coatings via electrostatic attraction forces method

Effect of Ni2+ on Lithium-Ion Diffusion in Layered LiNi1−x−yMnxCoyO2 Materials

“…Among the various cathode materials, layered transition metal oxides LiNi 1−x−y Mn x Co y O 2 (NMC) have attracted wide attention. Compared with LiCoO 2 , LiMn 2 O 4 , and LiNiO 2 , NMC materials have excellent electrochemical properties, such as high energy density, high reversibility, good environmental compatibility, and an excellent charge-discharge rate [5][6][7][8][9][10][11][12][13]. In previous studies, these electrochemical properties of NMC materials have been investigated for different transition metal (TM) ratios, including LiNi 1/3 Mn 1/3 Co 1/3 O 2 (333) [8], LiNi 0.4 Mn 0.4 Co 0.2 O 2 (442) [9], LiNi 0.5 Mn 0.3 Co 0.2 O 2 (532) [10], LiNi 0.6 Mn 0.2 Co 0.2 O 2 (622) [11], LiNi 0.7 Mn 0.15 Co 0.15 O 2 (71515), [12] and LiNi 0.8 Mn 0.1 Co 0.1 O 2 (811) [13].…”

“…Compared with LiCoO 2 , LiMn 2 O 4 , and LiNiO 2 , NMC materials have excellent electrochemical properties, such as high energy density, high reversibility, good environmental compatibility, and an excellent charge-discharge rate [5][6][7][8][9][10][11][12][13]. In previous studies, these electrochemical properties of NMC materials have been investigated for different transition metal (TM) ratios, including LiNi 1/3 Mn 1/3 Co 1/3 O 2 (333) [8], LiNi 0.4 Mn 0.4 Co 0.2 O 2 (442) [9], LiNi 0.5 Mn 0.3 Co 0.2 O 2 (532) [10], LiNi 0.6 Mn 0.2 Co 0.2 O 2 (622) [11], LiNi 0.7 Mn 0.15 Co 0.15 O 2 (71515), [12] and LiNi 0.8 Mn 0.1 Co 0.1 O 2 (811) [13]. Among these electrochemical properties, the Li-ion diffusion coefficient, which is an important parameter for LIB cathode materials, directly determines the charge and discharge rate capability [14].…”

Characterization of Femnpo4 Precursors as a Cathode Material for Lithium Ion Lifemnpo4 Batteries With Variation of Ph Coprecipitation

“…are generally used as a source as well as storage of electrical energy in various devices such as electronic devices, motorized vehicles, and other devices that require secondary energy storage [1].…”