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      "text": "Abstract: Integrated Li- and Mn-rich layered cathodes y Li2MnO3 · (1y )Li M O2 ( M = Mn, Co, and Ni) have shown their ability to deliver specific capacities close to 300 mAh g -1 , but their significant drawbacks are capacity fading and voltage decay during cycling. In this study, new stoichiometric high-voltage Li-rich oxides with y = 0.0, 0.3, and 0.5 are synthesized in identical conditions using a sol-gel method. These compositions were analyzed to determine their optimal configuration and to understand their extraordinary behavior. Their nanostructural properties were investigated using XRD and Raman spectroscopy, while the morphology and grain-size distribution of the samples were characterized by BET, SEM and HRTEM analyses. The electrochemical performances of the integrated Liand Mn-rich compounds were evaluated through galvanostatic cycling and electrochemical impedance spectroscopy. The best cathode material 0.5Li2MnO3 · 0.5LiNi1/3 Co1/3 Mn1/3 O2 had a capacity retention of 83.6% after 100 cycles in the potential range 2.0-4.8 V vs. Li + /Li.",
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      "text": "Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2MnO3∙(1y ) LiNi1/3Co1/3Mn1/3O2 electrodes. Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2 MnO3 · (1y ) LiNi1/3 Co 1/3 Mn 1/3 O2 electrodes.",
      "text_preview": "Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2MnO3∙(1y ) LiNi1/3Co1/3Mn1/3O2 electrodes. Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2 MnO…",
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      "cleaned_text": "Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2MnO3∙(1y ) LiNi1/3Co1/3Mn1/3O2 electrodes. Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2 MnO3 · (1y ) LiNi1/3 Co 1/3 Mn 1/3 O2 electrodes.",
      "cleaned_text_preview": "Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2MnO3∙(1y ) LiNi1/3Co1/3Mn1/3O2 electrodes. Figure 12. ( a ) Cycling performance at C /10 rate and ( b ) rate capability for y Li2 MnO…",
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      "text": "Figure 12b illustrates the rate capability of the y Li₂MnO₃∙(1y )LiNi1/3Co1/3Mn1/3O₂ electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electrode compositions, the discharge capacity is normalized relative to their first discharge capacity at a 0.1C rate, allowing direct comparison. As a general trend, discharge capacity decreases moderately with increasing C rates for all electrodes, demonstrating the impact of higher C rates on the utilization of active materials and lithium-ion diffusion kinetics. Regarding LiNi1/3Co1/3Mn1/3O₂, this electrode exhibits typical behavior for a pristine R3 m layered structure. There is a continuous decrease in the discharge capacity as the current rate increases, retaining ~32 mAh g -1 when cycled at a high rate of 3C. In contrast to the pristine LiNi1/3Co1/3Mn1/3O₂, the Li-rich electrodes ( y = 0.3 and 0.5) demonstrate a significantly better retention of discharge capacity across current rates from 0.1C to 3C. This suggests an activation process that enhances their performance under high-rate conditions. At the 3C rate, the Li1.134Ni0.2Co0.2Mn0.467O2 and Li1.2Ni0.13Co0.13Mn0.54O2 electrodes deliver 90 and 123 mAhg -1 , respectively. The results align well with those reported in the literature [29,34,54-57]. This excellent rate capability can be attributed to several factors: (i) A well-formed layered structure, as the integrated Li2MnO3 regions enhance structural stability and facilitate lithium-ion transport during high-rate cycling. (ii) A small particle size: this reduces lithium-ion diffusion paths, promoting faster intercalation/deintercalation reactions [54]. (iii) A high specific surface area: this enhances contact between the active material and the electrolyte, improving reaction kinetics and capacity utilization. Kaewmala et al. [57] highlighted that the increased discharge capacity in the Li1.2Ni0.13Co0.13Mn0.54O2 electrode is closely associated with its higher c/a ratio. The elevated c/a ratio correlates with an increased interslab thickness ( I (LiO2)) as noted in Table 2, facilitating enhanced lithium diffusion. This structural advantage supports larger capacities even at a high current density. Upon reducing the current density back to 0.1C (Figure 12b), the electrode materials retained high discharge capacities: 250.6 mAh g -1 (a 95.68% retention of initial capacity) for y = 0.5, ~220 mAh g -1 (93.34% retention) for y = 0.3. For comparison, it is reduced to 168.1mAh g -1 (an 89.45% retention) for the pristine material ( y = 0). These results suggest that the electrode materials, particularly the Li1.2Ni0.13Co0.13Mn0.54O2 composition, maintain structural integrity and functionality even after extended cycling at high current densities. This resilience is likely due to the robust Figure 12b illustrates the rate capability of the y Li2MnO3 · (1y )LiNi1/3 Co1/3 Mn1/3 O2 electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electrode compositions, the discharge capacity is normalized relative to their first discharge capacity at a 0.1C rate, allowing direct comparison. As a general trend, discharge capacity decreases moderately with increasing C rates for all electrodes, demonstrating the impact of higher C rates on the utilization of active materials and lithium-ion diffusion kinetics. Regarding LiNi1/3 Co1/3 Mn1/3 O2, this electrode exhibits typical behavior for a pristine R -3 m layered structure. There is a continuous decrease in the discharge capacity as the current rate increases, retaining ~32 mAh g -1 when cycled at a high rate of 3C. In contrast to the pristine LiNi 1/3 Co 1/3 Mn 1/3 O2, the Li-rich electrodes ( y = 0.3 and 0.5) demonstrate a significantly better retention of discharge capacity across current rates from 0.1C to 3C. This suggests an activation process that enhances their performance under high-rate conditions. At the 3C rate, the Li1.134Ni0.2Co0.2Mn0.467O2 and Li1.2Ni0.13Co0.13Mn0.54O2 electrodes deliver 90 and 123 mAhg -1 , respectively. The results align well with those reported in the literature [29,34,54-57]. This excellent rate capability can be attributed to several factors: (i) A well-formed layered structure, as the integrated Li2MnO3 regions enhance structural stability and facilitate lithium-ion transport during high-rate cycling. (ii) A small particle size: this reduces lithium-ion diffusion paths, promoting faster intercalation/deintercalation reactions [54]. (iii) A high specific surface area: this enhances contact between the active material and the electrolyte, improving reaction kinetics and capacity utilization. Kaewmala et al. [57] highlighted that the increased discharge capacity in the Li1.2Ni0.13Co0.13Mn0.54O2 electrode is closely associated with its higher c / a ratio. The elevated c / a ratio correlates with an increased interslab thickness ( I (LiO2) ) as noted in Table 2, facilitating enhanced lithium diffusion. This structural advantage supports larger capacities even at a high current density. Upon reducing the current density back to 0.1C (Figure 12b), the electrode materials retained high discharge capacities: 250.6 mAh g -1 (a 95.68% retention of initial capacity) for y = 0.5, ~220 mAh g -1 (93.34% retention) for y = 0.3. For comparison, it is reduced to 168.1mAh g -1 (an 89.45% retention) for the pristine material ( y = 0). These results suggest that the electrode materials, particularly the Li1.2Ni0.13Co0.13Mn0.54O2 composition, maintain structural integrity and functionality even after extended cycling at high current densities. This resilience is likely due to the robust layered structure and structural benefits provided by the Li2MnO3 component, ensuring excellent cyclability and capacity retention.",
      "text_preview": "Figure 12b illustrates the rate capability of the y Li₂MnO₃∙(1y )LiNi1/3Co1/3Mn1/3O₂ electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electr…",
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      "cleaned_text": "Figure 12b illustrates the rate capability of the y Li₂MnO₃∙(1y )LiNi1/3Co1/3Mn1/3O₂ electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electrode compositions, the discharge capacity is normalized relative to their first discharge capacity at a 0.1C rate, allowing direct comparison. As a general trend, discharge capacity decreases moderately with increasing C rates for all electrodes, demonstrating the impact of higher C rates on the utilization of active materials and lithium-ion diffusion kinetics. Regarding LiNi1/3Co1/3Mn1/3O₂, this electrode exhibits typical behavior for a pristine R3 m layered structure. There is a continuous decrease in the discharge capacity as the current rate increases, retaining ~32 mAh g -1 when cycled at a high rate of 3C. In contrast to the pristine LiNi1/3Co1/3Mn1/3O₂, the Li-rich electrodes ( y = 0.3 and 0.5) demonstrate a significantly better retention of discharge capacity across current rates from 0.1C to 3C. This suggests an activation process that enhances their performance under high-rate conditions. At the 3C rate, the Li1.134Ni0.2Co0.2Mn0.467O2 and Li1.2Ni0.13Co0.13Mn0.54O2 electrodes deliver 90 and 123 mAhg -1 , respectively. The results align well with those reported in the literature [29,34,54-57]. This excellent rate capability can be attributed to several factors: (i) A well-formed layered structure, as the integrated Li2MnO3 regions enhance structural stability and facilitate lithium-ion transport during high-rate cycling. (ii) A small particle size: this reduces lithium-ion diffusion paths, promoting faster intercalation/deintercalation reactions [54]. (iii) A high specific surface area: this enhances contact between the active material and the electrolyte, improving reaction kinetics and capacity utilization. Kaewmala et al. [57] highlighted that the increased discharge capacity in the Li1.2Ni0.13Co0.13Mn0.54O2 electrode is closely associated with its higher c/a ratio. The elevated c/a ratio correlates with an increased interslab thickness ( I (LiO2)) as noted in Table 2, facilitating enhanced lithium diffusion. This structural advantage supports larger capacities even at a high current density. Upon reducing the current density back to 0.1C (Figure 12b), the electrode materials retained high discharge capacities: 250.6 mAh g -1 (a 95.68% retention of initial capacity) for y = 0.5, ~220 mAh g -1 (93.34% retention) for y = 0.3. For comparison, it is reduced to 168.1mAh g -1 (an 89.45% retention) for the pristine material ( y = 0). These results suggest that the electrode materials, particularly the Li1.2Ni0.13Co0.13Mn0.54O2 composition, maintain structural integrity and functionality even after extended cycling at high current densities. This resilience is likely due to the robust Figure 12b illustrates the rate capability of the y Li2MnO3 · (1y )LiNi1/3 Co1/3 Mn1/3 O2 electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electrode compositions, the discharge capacity is normalized relative to their first discharge capacity at a 0.1C rate, allowing direct comparison. As a general trend, discharge capacity decreases moderately with increasing C rates for all electrodes, demonstrating the impact of higher C rates on the utilization of active materials and lithium-ion diffusion kinetics. Regarding LiNi1/3 Co1/3 Mn1/3 O2, this electrode exhibits typical behavior for a pristine R -3 m layered structure. There is a continuous decrease in the discharge capacity as the current rate increases, retaining ~32 mAh g -1 when cycled at a high rate of 3C. In contrast to the pristine LiNi 1/3 Co 1/3 Mn 1/3 O2, the Li-rich electrodes ( y = 0.3 and 0.5) demonstrate a significantly better retention of discharge capacity across current rates from 0.1C to 3C. This suggests an activation process that enhances their performance under high-rate conditions. At the 3C rate, the Li1.134Ni0.2Co0.2Mn0.467O2 and Li1.2Ni0.13Co0.13Mn0.54O2 electrodes deliver 90 and 123 mAhg -1 , respectively. The results align well with those reported in the literature [29,34,54-57]. This excellent rate capability can be attributed to several factors: (i) A well-formed layered structure, as the integrated Li2MnO3 regions enhance structural stability and facilitate lithium-ion transport during high-rate cycling. (ii) A small particle size: this reduces lithium-ion diffusion paths, promoting faster intercalation/deintercalation reactions [54]. (iii) A high specific surface area: this enhances contact between the active material and the electrolyte, improving reaction kinetics and capacity utilization. Kaewmala et al. [57] highlighted that the increased discharge capacity in the Li1.2Ni0.13Co0.13Mn0.54O2 electrode is closely associated with its higher c / a ratio. The elevated c / a ratio correlates with an increased interslab thickness ( I (LiO2) ) as noted in Table 2, facilitating enhanced lithium diffusion. This structural advantage supports larger capacities even at a high current density. Upon reducing the current density back to 0.1C (Figure 12b), the electrode materials retained high discharge capacities: 250.6 mAh g -1 (a 95.68% retention of initial capacity) for y = 0.5, ~220 mAh g -1 (93.34% retention) for y = 0.3. For comparison, it is reduced to 168.1mAh g -1 (an 89.45% retention) for the pristine material ( y = 0). These results suggest that the electrode materials, particularly the Li1.2Ni0.13Co0.13Mn0.54O2 composition, maintain structural integrity and functionality even after extended cycling at high current densities. This resilience is likely due to the robust layered structure and structural benefits provided by the Li2MnO3 component, ensuring excellent cyclability and capacity retention.",
      "cleaned_text_preview": "Figure 12b illustrates the rate capability of the y Li₂MnO₃∙(1y )LiNi1/3Co1/3Mn1/3O₂ electrodes under various current densities ranging from 0.1C to 3C, in the voltage window 2.0-4.8 V vs. Li + /Li. For all three electr…",
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