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      "caption": "Fig. 1. (a) Structural schematic of the Co-free Li-rich layered oxides generated using VESTA. (b) Thermogravimetric analysis (TGA) and derivative thermogravimetry (DTG) curves of the Li/Ni-incorporated precursors for L-NM 26, LNM 35, and L-NM 44 measured in air. The inset shows an enlarged view of the 330 -700 ◦ C region.",
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      "caption": "Fig. 2. Scanning electron micrograph of active materials (powders) after thermal treatment and before cycling in air atmosphere, along with the corresponding scaled-shaped individual particle size distributions displays on the right side. (a, b) L-NM 26, (c, d) L- NM 35 and (e, f) L-NM 44. The right-side plots are SEM-derived particle-size distributions from image analysis, not EDS depth profiles, etching profiles, or differential total-signal curves.",
      "caption_preview": "Fig. 2. Scanning electron micrograph of active materials (powders) after thermal treatment and before cycling in air atmosphere, along with the corresponding scaled-shaped individual particle size distributions displays…",
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      "caption": "Fig. 3. Results of TEM and HRTEM study of the layer samples of active materials (powders) after thermal treatment and before cycling in air atmosphere, Fourier transform of TEM Images and local d-spacing Vector Variations for each sample at the right side. (a, b) Results of HRTEM and Local d-spacing vector variation of HRTEM for the sample L-NM 26, respectively (c, d) Results of HRTEM and Local d-spacing vector variation of HRTEM for the sample L-NM 44, respectively (e, f) LNM 35. Fast Fourier Transform-FFT images at the ride side of each HRTEM. Enlarge region embedded in each HRTEM image to show Stacking Fauls. Color-full bar dspacing in nm. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)",
      "caption_preview": "Fig. 3. Results of TEM and HRTEM study of the layer samples of active materials (powders) after thermal treatment and before cycling in air atmosphere, Fourier transform of TEM Images and local d-spacing Vector Variatio…",
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      "caption": "Fig. 4. Raman spectra of the L-NM 26, L-NM 35 and L-NM 44 active materials. The classified spectra are marked as S1 and S2 in Figs. S4 and S5.",
      "caption_preview": "Fig. 4. Raman spectra of the L-NM 26, L-NM 35 and L-NM 44 active materials. The classified spectra are marked as S1 and S2 in Figs. S4 and S5.",
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      "caption": "Fig. 6. XPS spectra and high-resolution regions Ni2p, Mn2p, and O1s of the active materials L-NM 26, L-NM 35 and L-NM 44.",
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      "caption": "Fig. 7. (a) Charge -discharge voltage profiles of the L-NM 26, L-NM 35 and L-NM 44 between 2.0 and 4.8 V at a current density of 20 mA g 1 (0.1C) at room temperature and in the ride side the corresponding differential capacity curves for the cycles 1, 2, 30 and 80. (b) Cycling performance at 20 mA g 1 (0.1C) over a 2.0 -4.8 V voltage window is compared for the samples L-NM 26, L-NM 35 and L-NM 44. (c) Cycling stability curves performed at different C-rates over a 2.0 -4.8 V voltage window are compared for the samples L-NM 26, L-NM 35, L-NM 44, and L-NM 35, and L-NM 35 in CCCV mode. (d) Cycling performance of the Li1.2Ni0.3Mn0.5O2/graphite 18650 full cell, reported as full-cell discharge capacity (mAh) with the corresponding Coulombic efficiency over 32 cycles.",
      "caption_preview": "Fig. 7. (a) Charge -discharge voltage profiles of the L-NM 26, L-NM 35 and L-NM 44 between 2.0 and 4.8 V at a current density of 20 mA g 1 (0.1C) at room temperature and in the ride side the corresponding differential c…",
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      "caption": "Fig. 8. The electrochemical impedance of samples L-NM 26 (black color), L-NM 35 (green color) and L-NM 44 (red color) at a charge constant current of 20 mA g 1 (1C = 200 mA g 1 ) for 4h and comparative electrochemical impedance performed of samples after 2nd and 10th cycles. The right side of the Nyquist diagrams for each sample displays experimental values (scatter) alongside fitted values (lines), while the lower section of the Bode diagram presents the corresponding data. In the equivalent circuit, Rs represents the ohmic/electrolyte resistance, RCEI the cathode/electrolyte interphase resistance, Rct1 and Rct2 the charge-transfer resistance contributions, φ CEI, φ dl1, and φ dl2 the corresponding constant-phase elements, W the Warburg diffusion element, and τ CEI, τ dl1, and τ dl2 the characteristic relaxation times associated with the corresponding impedance processes. (For interpretation of the references to color in this figure legend, the reader is referred to the Web version of this article.)",
      "caption_preview": "Fig. 8. The electrochemical impedance of samples L-NM 26 (black color), L-NM 35 (green color) and L-NM 44 (red color) at a charge constant current of 20 mA g 1 (1C = 200 mA g 1 ) for 4h and comparative electrochemical i…",
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      "caption": "Table 1 44 a . Results of chemical composition analysis by ICP of L-NM 26, L-NM 35 and L-NM",
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      "caption": "Table 4 Ni2p3/2, Mn2p3/2 and Mn3s spectral fitting parameters: binding energy (eV) for each active material, percentage of the total area of Ni2p3/2 region for each active material and Δ eV in the Mn3s region for each active material.",
      "caption_preview": "Table 4 Ni2p3/2, Mn2p3/2 and Mn3s spectral fitting parameters: binding energy (eV) for each active material, percentage of the total area of Ni2p3/2 region for each active material and Δ eV in the Mn3s region for each a…",
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