asset_index	element_type	label	page	caption_source	suppress_in_index	duplicate_of	duplicate_reason	region_rescue_reason	visual_group_id	parent_visual_label	parent_visual_type	confidence	bbox	section	caption_preview	caption
1	figure	Docling Figure 1	1	missing_caption	False							0.55	[201.74, 410.5, 334.56, 168.78]	H I G H L I G H T S		
2	figure	Fig. 1	4	direct_caption_ref	False							0.82	[39.05, 271.2, 518.3, 436.69]	3.1. Synthesis and characterization of LFP-coated LMR (LMR@Fx)	Fig. 1. (a) Schematic illustrating the suppression of surface degradation (Mn dissolution, O2 evolution, and rock-salt phase transformation) by the carbon-coated LiFePO4 (C-LFP) layer. (b) X-ray diffraction (XRD) patter…	Fig. 1. (a) Schematic illustrating the suppression of surface degradation (Mn dissolution, O2 evolution, and rock-salt phase transformation) by the carbon-coated LiFePO4 (C-LFP) layer. (b) X-ray diffraction (XRD) pattern of pristine Li-rich Mn-based layered oxide (LMR); the inset highlights superlattice reflections (20 -23 ◦ ). (c) XRD patterns of samples with various C-LFP loadings. (d) Comparison of LMR@F2.0 with the corresponding physical mixture (LMR + 2.0 wt% C-LFP).
3	figure	Fig. 2	5	direct_caption_ref	False							0.82	[39.28, 391.82, 515.49, 296.03]	3.2. Enhanced electrochemical performance	Fig. 2. Field-emission scanning electron microscopy (FE-SEM) images of the (a) hydroxide precursor and (b) pristine LMR revealing a hierarchical structure composed of spherical secondary and granular primary particles. …	Fig. 2. Field-emission scanning electron microscopy (FE-SEM) images of the (a) hydroxide precursor and (b) pristine LMR revealing a hierarchical structure composed of spherical secondary and granular primary particles. (c -f) Surface FE-SEM images of LMR@F0.5 -;2.0 demonstrating the formation of a discrete islandlike coating morphology progressively densifying with increasing C-LFP loading. (g) Cross-sectional FE-SEM image and (h) corresponding energy-dispersive X-ray spectroscopy (EDS) line profile of LMR@F0.75. (i -l) EDS elemental mappings of Fe (red) obtained for LMR@F0.5 -;2.0. (For interpretation of the references to colour in this figure legend, the reader is referred to the Web version of this article.)
4	figure	Fig. 3	6	direct_caption_ref	False							0.82	[38.6, 56.38, 517.79, 317.71]	3.2. Enhanced electrochemical performance	Fig. 3. (a) Initial charge -discharge voltage profiles recorded at 0.1C. (b) Results of rate capability tests. (c) Capacity retention and coulombic efficiency evolution during 200 cycles at 0.5C. Charge -discharge volta…	Fig. 3. (a) Initial charge -discharge voltage profiles recorded at 0.1C. (b) Results of rate capability tests. (c) Capacity retention and coulombic efficiency evolution during 200 cycles at 0.5C. Charge -discharge voltage profiles of (d) pristine LMR and (e) LMR@F0.75 at selected cycles (initial, 1st, 50th, 100th, 150th, and 200th). (f) Evolution of average discharge voltage over 200 cycles.
5	figure	Fig. 4	7	direct_caption_ref	False							0.82	[39.4, 55.85, 518.05, 311.52]	3.3. Synergistic promotional effects of C-LFP islands on electrochemical reaction kinetics	Fig. 4. (a) Volume resistivities of different electrode. (b -d) Li-ion diffusion coefficients ( D Li + ) as functions of voltage determined during discharge: (b) full voltage range, (c) magnified view of the 3.2 -3.5 V …	Fig. 4. (a) Volume resistivities of different electrode. (b -d) Li-ion diffusion coefficients ( D Li + ) as functions of voltage determined during discharge: (b) full voltage range, (c) magnified view of the 3.2 -3.5 V region showing enhanced kinetics near the LFP activation potential, and (d) the 3.6 -4.0 V region. Nyquist plots of LMR half-cells recorded (e) in the fresh state (at open-circuit voltage) and (f) after the third initial cycle.
6	figure	Fig. 5	9	direct_caption_ref	False							0.82	[39.74, 54.63, 515.75, 435.71]	3.4. Elucidating the multifunctional stabilization mechanism	Fig. 5. (a -l) High-resolution transmission electron microscopy (HRTEM) analysis of electrodes after three initial cycles. Low-magnification images of a single particle of (a) pristine LMR and (g) LMR@F0.75. (b, h) HRTE…	Fig. 5. (a -l) High-resolution transmission electron microscopy (HRTEM) analysis of electrodes after three initial cycles. Low-magnification images of a single particle of (a) pristine LMR and (g) LMR@F0.75. (b, h) HRTEM images focusing on the near-surface region. (c, d) Magnified lattice image and corresponding fast Fourier transform (FFT) pattern of the pristine LMR surface revealing the formation of a degraded rock-salt phase ( Fm 3 m ). (e, f) Magnified lattice image and FFT pattern of pristine LMR bulk showing the original layered structure ( R 3 m ). (i, j) Magnified lattice image and FFT pattern of the LMR@F0.75 surface confirming the preservation of the Li2MnO3-like superlattice structure ( C 2/ m ). (k, l) Magnified lattice image and FFT pattern of the LMR@F0.75 bulk ( R 3 m ). (m, n) In situ differential electrochemical mass spectrometry profiles showing O2 and CO2 evolution during the first charge. (o) Differential scanning calorimetry curves of charged cathodes.