To identify the crystal structure and phase properties of bare and NC-NCM811 materials, XRD measurements were carried out as depicted in Fig. . XRD pattern of bare NCM811 matched well with the hexagonal α-NaFeO2 space group of R-3m (PDF# 09-0063) layered structure. The layered structure of NCM811 material was confirmed by observing the XRD peaks splitting at 38.56° and 65.44° in 2θ attributing to the planes of (006)/(012) and (108)/(110), respectively. For the surface-modified NC-NCM811 materials, the diffraction planes are matched exactly with bare NCM811 confirming the formation of a single pure phase without the presence of any additional peaks. Also, the coating agent N and C involvement does not alter the structure of the NCM811 material. However, a little peak shift at the (003) plane was observed in modified NCM materials with an increase in the presence of N and C due to slight enlargement in interlayer spacing in layered NCM811 crystal raised from the defects created by a nitrogen-doped carbon coating effect as shown in Fig. . To determine the surface morphology of these bare and modified NCM materials, FE-SEM was performed as shown in Fig. . The morphology of the bare NCM811 sample shows spherical shape with about 5 μm in diameter and the average size of microparticles that constitute the formation of such spherical bulk particles is found to be in the range of 200 and 400 nm. For the NC-coated materials, a similar spherical morphology was observed. By increasing the N and C coating amount, the surface of the particle appears to be rougher. In Fig. , it is observed that the overall spherical shape of all the materials remains the same, which resembles the bare material and surface roughness differs with the coating effect of N and C, over the NCM811. The presence of respective elemental composition in 0.1NC-NCM811 was included in Table . The core spectra of Li 1s were deconvoluted into two peaks at the binding energies of 52 and 53.5 respectively as depicted in Fig. . In Fig. , the deconvoluted spectra of Ni, Co, and Mn are in close match with the previously reported works and confirms that the chemical and valence states of 0.1-NCM material were not disturbed in the valence structure by coating effect. The core spectra of C 1s were deconvoluted into three peaks at the binding energies of 283 eV, 285.2 eV, and 288.3 eV representing the different chemical states of carbon such as C-C, C-N, and O-C=O respectively shown in Fig. . The N1s core spectra depicted in Fig. were deconvoluted into two peaks in the binding energies of 396 eV and 398.5 eV, showing the presence of pyridinic-N and graphitic-N respectively. The presence of the amino group (-NH) in the uric acid and further its decomposition leads to the occurrence of pyridinic-N and graphitic-N. It is noted that the presence of pyridinic-N and graphitic-N enhances the ionic and electronic conductivity performance of NCM811 respectively. Overall, the presence of N and C coating on the NCM811 surface was confirmed by XPS without affecting its chemical nature. To study the effect of N and C-coated NCM811 materials in LIBs, the electrochemical analysis was carried out using bare NCM811 and different ratios of NC-NCM811 as cathode and metallic lithium foil as the counter and reference electrode, respectively. Fig. shows the galvanostatic charge-discharge (GCD) plots of the 1 st , 25 th, and 50 th cycle at a current rate 0.1C performed in the voltage window between 3.0 and 4.3V. In Fig. , the initial charge and discharge capacity of bare NCM811 is observed as 209 and 207 mAh/g which is consistent with the previously reported NCM811 materials. A rapid decrease in discharge capacity was observed at the 25 Further, to analyze the enhancement of specific capacity due to the coating effect, the GCD studies were carried out at a higher 1 C rate shown in Fig. . The initial discharge capacity of bare NCM811 at a 1 C rate shows only 94.8 mAh/g. Whereas for NC-NCM811 materials, the initial discharge capacity is observed to be 147.2, 158.6, and 125.8 mAh/g for 0.05, 0.1, and 0.15NC-NCM811 materials respectively. From these results, it is observed that the 0.1NC-NCM811 delivers higher discharge capacity and stable performance among the other NCM811 materials due to the optimum coating layer of nitrogen and carbon over the surface of the material which enhances Li + and electronic conductivity. The possible reason for a decrease in discharge capacity in 0.15NC-NCM811 is due to the formation of thicker N and C coating which can impede the effective diffusion of Li + ions into the layered crystal structure. So, the 0.1NC-NCM811 is preferred to be in the optimum amount of N and C coating to enhance the conductivity and improve the capacity. Fig. shows dQ dV -1 initial cycle plots of bare and modified NCM materials recorded in the voltage between 3 and 4.3 V. The phase transitions from hexagonal to monoclinic (H1 to M) and then to other hexagonal phases (H2 and H3) are visible in all of the dQ dV -1 curves. The characteristics of redox peaks are observed similar in all plots confirming no deviation in electrochemical mechanisms in bare NMC811 and NC-NCM811 materials due to the coating effect. However, the potential difference between the oxidation and reduction peaks at around 3.75 V in 0.1NC-NCM811 is 0.043 V, which is smaller than the 0.12 V of the bare NCM811, indicating that the 0.1NC-NCM811 material has less electrochemical polarization and more electrode reversibility than other materials. The cycling performance of bare and modified NCM materials was studied at 0.1C rate for 100 cycles shown in Fig. . The initial and final discharge capacity of bare NCM811 is 207.4 and 145.1 mAh/g respectively and retain its capacity of 70% only. Whereas for 0.1NC-NCM811 material the initial and final discharge capacity is stated to be 211.6 and 196.3 mAh/g respectively and achieves capacity retention of 92.7%. The capacity retention of 0.05 and 0.15NC-NCM811 materials are 77.8 and 67.8% respectively. The average columbic efficiency of 0.1NC-NCM811 is 99.7% proving excellent reversibility of Li + during intercalation/de-intercalation. It is evident that among all the materials, 0.1-NCM exhibits better capacity retention due to the effective coating of N and C. To further confirm the stability of electrodes in high current density, the cyclic performance was carried out at 1C rate for 300 cycles depicted in Fig. . The initial and final specific discharge capacity of bare NCM811 is 95.7 and 37.3 mAh/g with capacity retention of 38.9% only. For 0.1NC-NCM811, the initial and final specific discharge capacity was 158.8 and 136.3 mAh/g with a capacity retention of 85.8%. The capacity retention of 0.05 and 0.15NC-NCM811 is found to be 63.2% and 42.4% respectively. The possible decrease in cycling performance of 0.l5NC-NCM811 might be due to the formation of a thick coating layer and excess of N and C coating content which can impede the Li + diffusion. Thus, 0.1NC-NCM811 material delivers high-capacity retention in both 0.1 C and 1 C rates and proves to be an effective coating of N and C that can enhance the cycling performance by improving electronic and ionic conductivity and limits the side reactions by preventing direct contact between the electrodeelectrolyte. The rate capability performance of bare and different ratios of NC-NCM811 materials was studied at various current rates of 0.1, 0.2, 0.5, 1, 2, and 5C as depicted in Fig. . The discharge capacities of bare NCM811 were found to be 207. 3, 195.7, 154.2, 95.7, 43.2, and 17.2 mAh/g at 0.1, 0.2, 0.5, 1, 2, and 5 C respectively. Whereas 0.1NC-NCM811 electrode delivers 211.5, 200.8, 183.5, 158.8, 134.2, and 105.6 mAh/g of discharge capacities at the current rates of 0.1, 0.2, 0.5, 1, 2, and 5 C respectively. Compared to other coated materials, 0.1NC-NCM811 material performs stable in high current rates and delivers a high specific discharge capacity of 105.6 mAh/g at 5 C which is greater than the bare NCM811, 0.05NC-NCM811, and 0.15NC-NCM811, respectively. These phenomena due to the effective 0.01 N and C coating provide favorable fast Li + diffusion and enhanced structural stability of NCM811 cathode than the other N and C coating materials. In contrast to previous observations, the present 0.1NC-NCM811 cathode demonstrates improved cycling stability and sustained capacity retention for LIBs, as detailed in Table .