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 [196.92, 321.27, 246.16, 181.79] g r a p h i c a l a b s t r a c t 2 figure Fig. 1 2 direct_caption_ref False 0.82 [131.0, 691.82, 342.01, 35.22] 2.1. Preparation of electrolyte systems Fig. 1. The reaction mechanism of eliminating H2O and HF by nitriles. Fig. 1. The reaction mechanism of eliminating H2O and HF by nitriles. 3 figure Fig. 2 4 direct_caption_ref False 0.82 [74.37, 66.21, 457.39, 410.28] 3. Results and discussions Fig. 2. (a) The conductivity of commercial electrolytes containing different weight ratios of succinonitrile at temperatures range from 30  C to 80  C. (b) LSV of the 1 M LiPF6/EC/ DEC commercial electrolyte with or… Fig. 2. (a) The conductivity of commercial electrolytes containing different weight ratios of succinonitrile at temperatures range from 30  C to 80  C. (b) LSV of the 1 M LiPF6/EC/ DEC commercial electrolyte with or without 1wt% SN. Working electrode: Pt, counter and reference electrodes: Li, scan rate: 1 mV s 1 . (c) Frontier molecular orbitals of EC, DEC and SN and their energies of occupied (HOMO) and unoccupied (LUMO) (in Ha). (d) Discharge capacity after 50 cycles of Li/Li1.2Ni0.2Mn0.6O2 half-cells containing various weight ratios of SN. 4 figure Fig. 3 4 direct_caption_ref False 0.82 [102.73, 543.9, 399.68, 163.5] 3. Results and discussions Fig. 3. Ac impedance spectra of the Li/Li1.2Ni0.2Mn0.6O2 half-cells containing various weight ratios of SN: (a) After 1 cycles, (b) After 5 cycles. Fig. 3. Ac impedance spectra of the Li/Li1.2Ni0.2Mn0.6O2 half-cells containing various weight ratios of SN: (a) After 1 cycles, (b) After 5 cycles. 5 figure Fig. 4 5 direct_caption_ref False 0.82 [107.9, 66.22, 370.32, 148.69] 3. Results and discussions Fig. 4. TGA diagrams and DTG curves of commercial electrolyte (a) and 1wt % SN electrolyte (b). Fig. 4. TGA diagrams and DTG curves of commercial electrolyte (a) and 1wt % SN electrolyte (b). 6 figure Fig. 5 5 direct_caption_ref False 0.82 [35.06, 528.66, 245.99, 181.36] 3. Results and discussions Fig. 5. Discharge capacities and coulombic ef fi ciencies of the Li/Li1.2Ni0.2Mn0.6O2 half-cells at a 0.1 C current density with or without 1wt % SN at 55  C, the inset displays SEM images of the batteries after 50 cyc… Fig. 5. Discharge capacities and coulombic ef fi ciencies of the Li/Li1.2Ni0.2Mn0.6O2 half-cells at a 0.1 C current density with or without 1wt % SN at 55  C, the inset displays SEM images of the batteries after 50 cycles. 7 figure Fig. 6 6 direct_caption_ref False 0.82 [116.85, 66.57, 371.3, 279.88] 3. Results and discussions Fig. 6. Discharge capacities of Li/Li1.2Ni0.2Mn0.6O2 with 1wt% SN-based electrolyte at different cut-off voltages: (a) 2.0 e 4.8 V, (b) 2.0 e 4.9 V, (c) 2.0 e 5.0 V and (d) 2.0 e 5.2 V. Fig. 6. Discharge capacities of Li/Li1.2Ni0.2Mn0.6O2 with 1wt% SN-based electrolyte at different cut-off voltages: (a) 2.0 e 4.8 V, (b) 2.0 e 4.9 V, (c) 2.0 e 5.0 V and (d) 2.0 e 5.2 V. 8 figure Fig. 7 6 direct_caption_ref False 0.82 [131.2, 382.85, 341.58, 172.34] 3. Results and discussions Fig. 7. SEM images of the surface of LNMO cathode after 5 cycles with: (a) commercial electrolyte (b) 1wt% SN. Fig. 7. SEM images of the surface of LNMO cathode after 5 cycles with: (a) commercial electrolyte (b) 1wt% SN. 9 figure Fig. 8 7 direct_caption_ref False 0.82 [52.24, 66.75, 482.78, 295.51] 3. Results and discussions Fig. 8. XPS spectra of the regions of Li1.2Ni0.2Mn0.6O2 after 50 cycles: (a) N1s with commercial electrolyte, (b) N1s with 1wt% SN-based electrolyte, (c) Mn2p with commercial electrolyte, (d) Mn2p with 1wt% SN-based ele… Fig. 8. XPS spectra of the regions of Li1.2Ni0.2Mn0.6O2 after 50 cycles: (a) N1s with commercial electrolyte, (b) N1s with 1wt% SN-based electrolyte, (c) Mn2p with commercial electrolyte, (d) Mn2p with 1wt% SN-based electrolyte, (e) Ni2p with commercial electrolyte, (f) Ni2p with 1wt% SN-based electrolyte.