{ "summary": { "count": 22, "indexable_count": 22, "suppressed_count": 0, "by_type": { "figure": 20, "table": 2 }, "by_caption_source": { "direct_caption_ref": 10, "sequence_or_inferred_caption": 7, "nearby_text_caption": 4, "missing_caption": 1 }, "by_duplicate_reason": { "": 22 }, "missing_caption_count": 1 }, "visual_assets": [ { "asset_index": 1, "element_id": "6adc4727-f72f-5510-870b-d6d5d474084c", "element_type": "figure", "label": "Fig. 1", "page": 3, "bbox": [ 71.63, 50.19, 401.32, 327.63 ], "caption": "Fig. 1 a Constitutional costs for manufacturing a typical LIB and SIB. Values are from ref. (Kim et al. 2014). b Abundances of metal elementals involved in standard cathode materials. Values are taken from ref. (Nitta et al. 2015). c Sustainable (naturally", "caption_preview": "Fig. 1 a Constitutional costs for manufacturing a typical LIB and SIB. Values are from ref. (Kim et al. 2014). b Abundances of metal elementals involved in standard cathode materials. Values are taken from ref. (Nitta e…", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based oxides as LIB cathodes", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 2, "element_id": "c0393eb2-4033-5bd9-be5d-48048e9da0bc", "element_type": "figure", "label": "Fig. 2", "page": 4, "bbox": [ 46.13, 49.06, 455.09, 126.05 ], "caption": "Fig. 2 a Crystal structure of layered LiMO2. Reproduced from ref. (Chen et al. 2016) with permission. b Cycling profile of layered LiMnO2. Reproduced from ref. (Armstrong and Bruce 1996) with permission. c Structural illustration and voltage profiles of orthorhombic LiMnO2. Reproduced from ref. (Croguennec et al. 1997b) and ref. (He et al. 2010) with permissions", "caption_preview": "Fig. 2 a Crystal structure of layered LiMO2. Reproduced from ref. (Chen et al. 2016) with permission. b Cycling profile of layered LiMnO2. Reproduced from ref. (Armstrong and Bruce 1996) with permission. c Structural il…", "caption_source": "sequence_or_inferred_caption", "section": "LiMnO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 3, "element_id": "5ae712b4-5a55-5b6b-a663-64f5f56f7960", "element_type": "figure", "label": "Fig. 3", "page": 5, "bbox": [ 73.3, 51.24, 400.1, 219.97 ], "caption": "Fig. 3 a , b Charge/discharge curves of LiFeO2 ( a ) and oxygen-deficient LiFeO2-x ( b ). c XRD pattern of cycled O3-type LiFeO2. Reproduced from ref. (Hirayama et al. 2011) with permission", "caption_preview": "Fig. 3 a , b Charge/discharge curves of LiFeO2 ( a ) and oxygen-deficient LiFeO2-x ( b ). c XRD pattern of cycled O3-type LiFeO2. Reproduced from ref. (Hirayama et al. 2011) with permission", "caption_source": "direct_caption_ref", "section": "LiFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 4, "element_id": "2ec904a0-7a39-58f4-a259-726c324c9e05", "element_type": "figure", "label": "Docling Figure 4", "page": 6, "bbox": [ 79.6, 48.36, 382.72, 590.51 ], "caption": "", "caption_preview": "", "caption_source": "missing_caption", "section": "Li2MnO3-based oxides", "confidence": 0.55, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 5, "element_id": "5dab426d-6eec-54c9-83d1-48007dd9221d", "element_type": "figure", "label": "Fig. 5", "page": 8, "bbox": [ 71.07, 49.41, 400.28, 297.97 ], "caption": "Fig. 5 a Crystal structure of spinel LiMn2O4. Reproduced from ref. (Chen et al. 2016) with permission. b -e Schematic diagram of the composites and the corresponding electrochemical performance. Reproduced from ref. (Lee et al. 2017) with permission", "caption_preview": "Fig. 5 a Crystal structure of spinel LiMn2O4. Reproduced from ref. (Chen et al. 2016) with permission. b -e Schematic diagram of the composites and the corresponding electrochemical performance. Reproduced from ref. (Le…", "caption_source": "direct_caption_ref", "section": "LiMn2O4", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 6, "element_id": "85e627eb-b728-5946-875a-bd49acf30818", "element_type": "figure", "label": "Fig. 6", "page": 10, "bbox": [ 48.04, 47.24, 452.62, 326.96 ], "caption": "Fig. 6 a Comparison of the two structural configurations in LNMO. Reproduced from ref. (Liu et al. 2012a) with permission. b Typical charge/discharge curves of LNMO with the two phases. Reproduced from ref. (Wang et al. 2011b) with permission. c , d Structural characteristics and electrochemical properties on the basis of our prepared samples. e , f Outstanding capacity retention achieved by using lithium phosphorus oxynitride solid electrolyte. Reproduced from ref. (Li et al. 2015b) with permission", "caption_preview": "Fig. 6 a Comparison of the two structural configurations in LNMO. Reproduced from ref. (Liu et al. 2012a) with permission. b Typical charge/discharge curves of LNMO with the two phases. Reproduced from ref. (Wang et al.…", "caption_source": "sequence_or_inferred_caption", "section": "Fe- and Mn-based phosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 7, "element_id": "cafad7a7-d8f7-5e38-9d06-d35b1994522b", "element_type": "figure", "label": "Fig. 7", "page": 11, "bbox": [ 253.86, 48.01, 243.63, 593.54 ], "caption": "Fig. 7 a Crystal structure of spinel LiMn2O4. Reproduced from ref. (Chen et al. 2016) with permission. b High-rate discharge capability of LiFe 0.9P0.95O4δ . Reproduced from ref. (Kang and Ceder 2009) with permission. c Structural and electrochemical properties of a core-shell LFP nanocomposites. Reproduced from ref. (Naoi et al. 2016) with permission. d Morphology and discharge curves of LMO nanoparticles. Reproduced with permission (Hong et al. 2015). e Phase transformation diagram of LiMn0.6Fe0.4PO4 over the extraction/insertion of Li ions. Reproduced from ref. (Ravnsbæk et al. 2014) with permission. f Phase transformation strain as a function of the Mn content in LFMP, and a special case of LiMn0.2Fe0.8PO4 with no misfit strain. Reproduced from ref. (Ravnsbæk et al. 2016) with permission. g LiMn0.5Fe0.5PO4 nanocrystals with different Fe-Li antisite defects showing distinct rate performance. Reproduced from ref. (Hu et al. 2017) with permission", "caption_preview": "Fig. 7 a Crystal structure of spinel LiMn2O4. Reproduced from ref. (Chen et al. 2016) with permission. b High-rate discharge capability of LiFe 0.9P0.95O4δ . Reproduced from ref. (Kang and Ceder 2009) with permission. c…", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based phosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 8, "element_id": "f7a86cdb-2a5d-5fbf-becc-ba7a131080f1", "element_type": "figure", "label": "Fig. 8", "page": 14, "bbox": [ 45.97, 48.86, 456.28, 254.24 ], "caption": "Fig. 8 a , b Crystal structures of P 21/ n Li2FeSiO4 ( a ), which transforms into Pmn 21 Li2FeSiO4 ( b ). c Typical charge/discharge curves of Li2FeSiO4. Reproduced from ref. (Armstrong et al. 2011) with permission. d Structural transformation routes of LiFeBO3 during delithiation and degradation. Reproduced from ref. (Bo et al. 2014) with permission. e Charge/discharge profiles of mesoporous LiFeBO3/C hollow spheres. Reproduced from ref. (Chen et al. 2015) with permission", "caption_preview": "Fig. 8 a , b Crystal structures of P 21/ n Li2FeSiO4 ( a ), which transforms into Pmn 21 Li2FeSiO4 ( b ). c Typical charge/discharge curves of Li2FeSiO4. Reproduced from ref. (Armstrong et al. 2011) with permission. d S…", "caption_source": "sequence_or_inferred_caption", "section": "Fe- and Mn-based oxides as SIB cathodes", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 9, "element_id": "a9a0d7f7-325b-56d6-a184-5b9a67d2a222", "element_type": "figure", "label": "Fig. 9", "page": 15, "bbox": [ 216.6, 48.7, 283.67, 313.54 ], "caption": "Fig. 9 a Structural comparison of P2-type and O3-type NaxMO2. Reproduced from ref. (Yabuuchi et al. 2012a) with permission. b Synthesis phase diagram of NaxCoO2 as a function of the Na/ Co ratio from precursors and heating temperature. Reproduced from ref. (Lei et al. 2014) with permission", "caption_preview": "Fig. 9 a Structural comparison of P2-type and O3-type NaxMO2. Reproduced from ref. (Yabuuchi et al. 2012a) with permission. b Synthesis phase diagram of NaxCoO2 as a function of the Na/ Co ratio from precursors and heat…", "caption_source": "direct_caption_ref", "section": "NaFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 10, "element_id": "b44833d7-3f7a-587d-8573-3a4ae9c77870", "element_type": "figure", "label": "Fig. 10", "page": 16, "bbox": [ 46.31, 50.07, 454.85, 145.54 ], "caption": "Fig. 10 a Initial charge/discharge curves of NaFeO2 on the dependence of different cut-off potentials. Reprinted from ref. (Okada et al. 2006) with permission. b Voltage profiles along cycling. c A diagram illustrating the electrochemical active Fe 3+ / Fe 4+ redox couple. Reproduced from ref. (Lee et al. 2015) with permission", "caption_preview": "Fig. 10 a Initial charge/discharge curves of NaFeO2 on the dependence of different cut-off potentials. Reprinted from ref. (Okada et al. 2006) with permission. b Voltage profiles along cycling. c A diagram illustrating …", "caption_source": "sequence_or_inferred_caption", "section": "NaFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 11, "element_id": "ab0f2f5e-1eed-5c9f-9661-c4ec53a82cfe", "element_type": "figure", "label": "Fig. 11", "page": 16, "bbox": [ 216.45, 275.4, 284.78, 387.31 ], "caption": "Fig. 11 a Stability domain of the different structural types observed for as-synthesized NaxMnO2 compounds. Reproduced from ref. (Clément et al. 2015) with permission. b Schematic representations of β -NaMnO2 and an intergrowth model between α - and β -NaMnO2. Reproduced from ref. (Billaud et al. 2014a) with permission. c , d Voltage profiles of α -NaMnO2 and the complex structure. Reproduced from ref. (Ma et al. 2011), (Billaud et al. 2014a) with permissions", "caption_preview": "Fig. 11 a Stability domain of the different structural types observed for as-synthesized NaxMnO2 compounds. Reproduced from ref. (Clément et al. 2015) with permission. b Schematic representations of β -NaMnO2 and an int…", "caption_source": "nearby_text_caption", "section": "NaFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 12, "element_id": "f4cebcef-db26-5a30-8665-471dabb62503", "element_type": "figure", "label": "Fig. 12", "page": 17, "bbox": [ 285.05, 50.31, 216.58, 543.75 ], "caption": "Fig. 12 a , b Charge-discharge curves of o -NMO ( a ) and h -NMO ( b ). c , d Operando XRD patterns of o -NMO ( c ) and h -NMO ( d ) over initial charge/discharge curves. Reproduced from ref. (Kumakura et al. 2016) with permission", "caption_preview": "Fig. 12 a , b Charge-discharge curves of o -NMO ( a ) and h -NMO ( b ). c , d Operando XRD patterns of o -NMO ( c ) and h -NMO ( d ) over initial charge/discharge curves. Reproduced from ref. (Kumakura et al. 2016) with…", "caption_source": "nearby_text_caption", "section": "NaFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 13, "element_id": "38a7a830-0a3d-555e-9e31-1368ce47fd42", "element_type": "figure", "label": "Fig. 13", "page": 18, "bbox": [ 215.94, 49.21, 284.82, 231.46 ], "caption": "Fig. 13 a Schematic representation of the tunnel Na0.44MnO2. b Voltage profiles of the monocrystal Na0.44MnO2 nanoplates. c Cyclic voltammograms (CVs) of the Na0.44MnO2 electrode between 2.0 and 4.0 Vat a scanning rate of 0.1 mV s -1 . d Corresponding insitu XRD patterns over the voltage scanning. Reproduced from ref. (He et al. 2016) with permission", "caption_preview": "Fig. 13 a Schematic representation of the tunnel Na0.44MnO2. b Voltage profiles of the monocrystal Na0.44MnO2 nanoplates. c Cyclic voltammograms (CVs) of the Na0.44MnO2 electrode between 2.0 and 4.0 Vat a scanning rate …", "caption_source": "direct_caption_ref", "section": "NaFeO2", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 14, "element_id": "2d464646-751c-548a-850c-d4301e1b5100", "element_type": "figure", "label": "Fig. 14", "page": 19, "bbox": [ 217.41, 540.48, 283.48, 120.53 ], "caption": "Fig. 14 Phase evolution in Na0.67Mn0.5Fe0.5O2 and Nisubstituted Na0.67Mn0.65Ni0.15Fe0.2O2 over the first cycle, and schematic illustration of Mn/Fe migration into tetrahedral sites in the Na space at high potential. Reproduced from ref. (Talaie et al. 2015) with permission", "caption_preview": "Fig. 14 Phase evolution in Na0.67Mn0.5Fe0.5O2 and Nisubstituted Na0.67Mn0.65Ni0.15Fe0.2O2 over the first cycle, and schematic illustration of Mn/Fe migration into tetrahedral sites in the Na space at high potential. Rep…", "caption_source": "nearby_text_caption", "section": "Fe-and Mn-based phosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 15, "element_id": "2c48feb0-8b29-5200-84a0-3b98f5b8245a", "element_type": "figure", "label": "Fig. 15", "page": 21, "bbox": [ 191.23, 48.89, 308.11, 592.98 ], "caption": "Fig. 15 a -e Crystal structures of olivine NFP, maricite NFP, NASICON-type Na3Fe2(PO4)3, layered Na3Fe3(PO4)4, alluauditetype Na2Fe3(PO4)3. Reproduced from ref. (Naoaki and Shinichi 2014) with permission. Their typical charge/discharge curves are shown on the right side. Reproduced from ref. (Ali et al. 2016), (Kim et al. 2015b), (Trad et al. 2010b), (Huang et al. 2015b), and (Liu et al. 2017b) with permissions", "caption_preview": "Fig. 15 a -e Crystal structures of olivine NFP, maricite NFP, NASICON-type Na3Fe2(PO4)3, layered Na3Fe3(PO4)4, alluauditetype Na2Fe3(PO4)3. Reproduced from ref. (Naoaki and Shinichi 2014) with permission. Their typical …", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based pyrophosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 16, "element_id": "73647065-fb70-55f6-ac1f-179f37c2841a", "element_type": "figure", "label": "Fig. 16", "page": 22, "bbox": [ 46.05, 395.76, 454.95, 224.11 ], "caption": "Fig. 16 a -c Triclinic structure ( P -1) of Na2FeP2O7 and corresponding electrochemical properties. Reproduced from ref. (Barpanda et al. 2012) with permission. d Voltage profiles of P -1 Na2MnP2O7. Reproduced from ref. (Park et al. 2013) with permission. e , f Crystal structure of β -Na2MnP2O7 (triclinic P 1) and its voltage profiles. Reproduced from ref. (Barpanda et al. 2013b) with permission", "caption_preview": "Fig. 16 a -c Triclinic structure ( P -1) of Na2FeP2O7 and corresponding electrochemical properties. Reproduced from ref. (Barpanda et al. 2012) with permission. d Voltage profiles of P -1 Na2MnP2O7. Reproduced from ref.…", "caption_source": "sequence_or_inferred_caption", "section": "Fe- and Mn-based pyrophosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 17, "element_id": "894e5ef1-50b5-5c3c-b29e-e6b06f785dff", "element_type": "figure", "label": "Fig. 17", "page": 23, "bbox": [ 88.4, 48.39, 367.79, 575.2 ], "caption": "Fig. 17 Crystal structures of alluaudite-type Na2Fe2(SO4)3 ( a ), eldfellite NaFe(SO4)2 ( b ), Na2Fe2(C2O4)3·2H2O ( c ), and Na2Fe(C2O4)F2 with their voltage profiles are shown on the right side. Reproduced from ref. (Barpanda et al. 2014b), (Singh et al. 2015), (Yao et al. 2017b), and (Yao et al. 2017a) with permissions", "caption_preview": "Fig. 17 Crystal structures of alluaudite-type Na2Fe2(SO4)3 ( a ), eldfellite NaFe(SO4)2 ( b ), Na2Fe2(C2O4)3·2H2O ( c ), and Na2Fe(C2O4)F2 with their voltage profiles are shown on the right side. Reproduced from ref. (B…", "caption_source": "sequence_or_inferred_caption", "section": "Fe- and Mn-based pyrophosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 18, "element_id": "0eeb3f6a-30b9-5118-a7d0-fff401712355", "element_type": "figure", "label": "Fig. 18", "page": 24, "bbox": [ 240.07, 50.23, 258.44, 590.88 ], "caption": "Fig. 18 a -d Crystal structures of Na2FePO4F ( a ), Na2MnPO4F ( b ), Na4Fe3(PO4)2(P2O7) ( c ), and Na3MnPO4CO3 ( d ). Reproduced from ref. (Naoaki and Shinichi 2014) with permission. Their representative voltage profiles are shown on the right side. Reproduced from ref. (Law et al. 2015), (Lin et al. 2014), (Wu et al. 2016), and (Huang et al. 2014) with permissions. e Highperformance Na4Mn3(PO4)2(P2O7), which was ascribed to the cooperative JahnTeller effect of Mn 3+ . Reproduced from ref. (Kim et al. 2015a) with permission", "caption_preview": "Fig. 18 a -d Crystal structures of Na2FePO4F ( a ), Na2MnPO4F ( b ), Na4Fe3(PO4)2(P2O7) ( c ), and Na3MnPO4CO3 ( d ). Reproduced from ref. (Naoaki and Shinichi 2014) with permission. Their representative voltage profile…", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based pyrophosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 19, "element_id": "d814a034-b6de-5611-a6a3-148dd4e496a1", "element_type": "figure", "label": "Fig. 19", "page": 25, "bbox": [ 46.6, 48.59, 454.1, 330.48 ], "caption": "Fig. 19 a Crystal structure of PBAs with a face-centered cubic phase. b Charge and discharge curves of Na2MnMn(CN)6. c , d The schematic illustrations of the step-wise structural evolution over the extraction/insertion of Na + ions. Reproduced from ref. (Lee et al. 2014) with permission. e , f Voltage profile and cycling performance of a Prussian blue@C composite. Reproduced from ref. (Jiang et al. 2016) with permission", "caption_preview": "Fig. 19 a Crystal structure of PBAs with a face-centered cubic phase. b Charge and discharge curves of Na2MnMn(CN)6. c , d The schematic illustrations of the step-wise structural evolution over the extraction/insertion …", "caption_source": "sequence_or_inferred_caption", "section": "Fe- and Mn-based pyrophosphates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 20, "element_id": "cf660ec1-0d89-55e6-9ac4-ee3f1150edd2", "element_type": "figure", "label": "Fig. 20", "page": 29, "bbox": [ 74.14, 49.44, 399.05, 159.38 ], "caption": "Fig. 20 Illustration of the energy densities of those Fe- and Mn-based cathode materials for LIBs ( a ) and SIBs ( b )", "caption_preview": "Fig. 20 Illustration of the energy densities of those Fe- and Mn-based cathode materials for LIBs ( a ) and SIBs ( b )", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based hexacyanometalates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 21, "element_id": "d66e2185-d127-5328-8826-cdcb947e12b7", "element_type": "table", "label": "Table 1", "page": 27, "bbox": [ 293.62, 47.52, 205.35, 614.55 ], "caption": "Table 1 Electrochemical properties of representative Fe- and Mn-based cathode materials for LIBs", "caption_preview": "Table 1 Electrochemical properties of representative Fe- and Mn-based cathode materials for LIBs", "caption_source": "direct_caption_ref", "section": "Fe- and Mn-based hexacyanometalates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" }, { "asset_index": 22, "element_id": "cdd13dae-e6ad-52f5-bef7-6181ea05d5db", "element_type": "table", "label": "Table 2", "page": 28, "bbox": [ 160.73, 48.41, 234.47, 613.54 ], "caption": "Table 2 Electrochemical properties of representative Fe- and Mn-based cathode materials for SIBs", "caption_preview": "Table 2 Electrochemical properties of representative Fe- and Mn-based cathode materials for SIBs", "caption_source": "nearby_text_caption", "section": "Fe- and Mn-based hexacyanometalates", "confidence": 0.82, "suppress_in_index": false, "duplicate_of": "", "duplicate_reason": "", "visual_group_id": "", "parent_visual_label": "", "parent_visual_type": "", "region_rescue_reason": "" } ] }