Measurement evidence
Conductive metal-organic frameworks promoting polysulfides transformation in lithium-sulfur batteries · Wang S., Huang F., Zhang Z. et al. · Journal of Energy Chemistry · 2021 · 336-343
Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.
Li-S coin cell with received carbon paper cathode · Electrode
Received carbon paper cathode control; scan rate 0.05 mV s-1; voltage window 1.8-2.8 V from SI Fig. S16.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| carbon paper cathode CV oxidation peak | 2.29 V | 2.29 V | — | Figure Axis Rounded Reported | p017 · SI Fig. S16 · Fig. S16 |
| carbon paper cathode CV reduction peak | 1.96 V | 1.96 V | — | Figure Axis Rounded Reported | p017 · SI Fig. S16 · Fig. S16 |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control CV under same scan-rate and sulfur-loading conditions as Ni-HHTP@CP.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP Li2S reduction peak R2 | 1.99 V | 1.99 V | — | Figure Axis Rounded Reported | p006 / article p341 · Results and discussion · Fig. 4a |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Sulfur loading 1.25 mg cm-2; scan rate 0.05 mV s-1; voltage range 1.8-2.8 V.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP Li2S oxidation peak O1Marked as a best value within this paper | 2.35 V | 2.35 V | — | Figure Axis Rounded Reported | p006 / article p341 · Results and discussion · Fig. 4a |
| Ni-HHTP@CP Li2S reduction peak R2Marked as a best value within this paper | 2.01 V | 2.01 V | — | Figure Axis Rounded Reported | p006 / article p341 · Results and discussion · Fig. 4a |
| Li2S4 oxidation peak O2 | ~2.42 V | 2.42 V | — | Text Approximate | p004 / article p339 · Results and discussion · Fig. 4a |
| CV scan rate | 0.05 mV s-1 | 0.05 mV s-1 | — | Text Exact Reported | p004 / article p339 · Results and discussion · Fig. 4a |
| typical sulfur loading for CV/cell tests | 1.25 mg cm-2 | 1.25 mg cm-2 | — | Text Exact Reported | p003-p004 / article pp338-339 · 2.7 Electrochemical cell assembly; Results and discussion · Fig. 4a |
Li-S coin cell with received carbon paper cathode · Electrode
Received carbon paper cathode control; cycling curve is cited in Fig. S21 caption but not numerically present in supplied SI text.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| carbon paper cathode capacity after 100 cycles | approximately 940 mAh g-1 from Fig. S21 | 940 mAh g-1 | visual estimate, roughly +/- 50 mAh g-1 | Visual Estimate Approximate | p022 · SI Fig. S21 · Fig. S21 |
| carbon paper cathode cycling comparison | inferior to Ni-HHTP@CP after 200 cycles | — | — | Qualitative Qualitative | p005 / article p340 · Results and discussion · Fig. S21 referenced |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control cycling at 0.2 C; specific capacity based on sulfur mass.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP capacity decay per cycle | 0.222% per cycle | 0.222 % per cycle | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5a |
| Ni-BTC@CP capacity after 200 cycles | approximately 710 mAh g-1 from Fig. 5a | 710 mAh g-1 | visual estimate, roughly +/- 40 mAh g-1 | Visual Estimate Approximate | p007 / article p342 · Results and discussion · Fig. 5a |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Coin-type Li-S cell cycling at 0.2 C; specific capacity based on sulfur mass.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP capacity decay per cycleMarked as a best value within this paper | 0.165% per cycle | 0.165 % per cycle | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5a |
| Ni-HHTP@CP capacity after 120 cycles | 1019 mAh g-1 | 1019 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S20 referenced |
| Ni-HHTP@CP capacity after 200 cyclesMarked as a best value within this paper | 910 mAh g-1 | 910 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5a |
| Ni-HHTP@CP capacity after 30 cycles | 1118 mAh g-1 | 1118 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S20 referenced |
| Ni-HHTP@CP capacity after 60 cycles | 1073 mAh g-1 | 1073 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S20 referenced |
| Ni-HHTP@CP capacity after 90 cycles | 1047 mAh g-1 | 1047 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S20 referenced |
| Ni-HHTP@CP initial discharge capacity at 0.2 CMarked as a best value within this paper | 1366 mAh g-1 | 1366 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5a |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control Nyquist plot fitted to obtain solution/series resistance R' and charge-transfer resistance Rct; fitted values are provided in rendered SI Table S1.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP fitted charge-transfer resistance Rct | 47.05 ohm | 47.05 ohm | — | SI Table Exact Reported | p027 · SI Table S1 · Table S1 |
| Ni-BTC@CP fitted R' resistance | 25.48 ohm | 25.48 ohm | — | SI Table Exact Reported | p027 · SI Table S1 · Table S1 |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Nyquist plots fitted to obtain solution/series resistance R' and charge-transfer resistance Rct; fitted values are provided in rendered SI Table S1.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP fitted charge-transfer resistance RctMarked as a best value within this paper | 11.84 ohm | 11.84 ohm | — | SI Table Exact Reported | p027 · SI Table S1 · Table S1 |
| Ni-HHTP@CP fitted R' resistanceMarked as a best value within this paper | 3.8 ohm | 3.8 ohm | — | SI Table Exact Reported | p027 · SI Table S1 · Table S1 |
| Ni-HHTP@CP charge transfer resistance comparisonMarked as a best value within this paper | smaller charge transfer resistance than Ni-BTC@CP | — | — | Qualitative Qualitative | p004 / article p339 · Results and discussion · Fig. 4e; Table S1 referenced |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
High sulfur loading and reduced E/S ratio of 6.5 uL mg-1; cells used 0.8 M Li2S6 without extra blank electrolyte.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP high-loading areal capacityMarked as a best value within this paper | 4.46 mAh cm-2 at sulfur loading 5.38 mg cm-2 | 4.46 mAh cm-2 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S25 referenced |
| Ni-HHTP@CP initial capacity under 6.14 mg sulfur loading | 764 mAh g-1 in the initial cycle with sulfur loading of 6.14 mg at 0.1 C | 764 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S23 referenced |
| Ni-HHTP@CP capacity under 7.68 mg sulfur loading | 648 mAh g-1 with sulfur loading 7.68 mg at 0.2 C | 648 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S24 referenced |
| Ni-HHTP@CP decay under 6.14 mg sulfur loading | 0.27% per cycle | 0.27 % per cycle | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S23 referenced |
| lean electrolyte to sulfur ratio | 6.5 uL mg-1 | 6.5 uL mg-1 | — | Text Exact Reported | p003 / article p338 · 2.7 Electrochemical cell assembly and measurement · Figs. S23-S25 referenced |
| sulfur areal loading for high areal capacity test | 5.38 mg cm-2 | 5.38 mg cm-2 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. S25 referenced |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control potentiostatic discharge at 2.05 V with 0.5 M Li2S6 catholyte in tetraglyme.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP potentiostatic Li2S deposition current peak | 0.155 mA cm-2 | 0.155 mA cm-2 | — | Text Exact Reported | p004-p005 / article pp339-340 · Results and discussion · Fig. 4f |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Potentiostatic discharge experiments at 2.05 V with 0.5 M Li2S6 catholyte in tetraglyme; separate 2.12 V profiles for deposition capacity are shown in rendered SI Figs. S17-S18.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Li2S deposition capacity advantage of Ni-HHTP@CPMarked as a best value within this paper | 105 mAh g-1 higher than Ni-BTC@CP | 105 mAh g-1 | — | Text Rounded Reported | p005 / article p340 · Results and discussion · Figs. S17-S18 referenced |
| Ni-HHTP@CP potentiostatic Li2S deposition current peakMarked as a best value within this paper | 0.207 mA cm-2 | 0.207 mA cm-2 | — | Text Exact Reported | p004-p005 / article pp339-340 · Results and discussion · Fig. 4f |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control rate capability at 0.1, 0.2, 0.5, 1, and 2 C.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP voltage hysteresis at 2 C | 463 mV | 463 mV | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5d-e |
| Ni-BTC@CP rate capacity at 0.1 C | 84 mAh g-1 lower than Ni-HHTP@CP at 0.1 C; calculated as 1371 - 84 = 1287 mAh g-1 | 1287 mAh g-1 | — | Calculated From Reported Exact Reported | p005 / article p340 · Results and discussion · Fig. 5c |
| Ni-BTC@CP rate capacity at 0.2 C | approximately 1160 mAh g-1 from Fig. 5c bar chart | 1160 mAh g-1 | visual estimate, roughly +/- 30 mAh g-1 | Visual Estimate Approximate | p007 / article p342 · Results and discussion · Fig. 5c |
| Ni-BTC@CP rate capacity at 0.5 C | approximately 1000 mAh g-1 from Fig. 5c bar chart | 1000 mAh g-1 | visual estimate, roughly +/- 30 mAh g-1 | Visual Estimate Approximate | p007 / article p342 · Results and discussion · Fig. 5c |
| Ni-BTC@CP rate capacity at 1 C | approximately 875 mAh g-1 from Fig. 5c bar chart | 875 mAh g-1 | visual estimate, roughly +/- 30 mAh g-1 | Visual Estimate Approximate | p007 / article p342 · Results and discussion · Fig. 5c |
| Ni-BTC@CP rate capacity at 2 C | 710 mAh g-1 | 710 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Rate capability at 0.1, 0.2, 0.5, 1, and 2 C; capacities based on sulfur mass.
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP voltage hysteresis at 2 CMarked as a best value within this paper | 317 mV | 317 mV | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5d-e |
| Ni-HHTP@CP rate capacity at 0.1 CMarked as a best value within this paper | 1371 mAh g-1 | 1371 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
| Ni-HHTP@CP rate capacity at 0.2 C | 1173 mAh g-1 | 1173 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
| Ni-HHTP@CP rate capacity at 0.5 C | 1053 mAh g-1 | 1053 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
| Ni-HHTP@CP rate capacity at 1 C | 985 mAh g-1 | 985 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
| Ni-HHTP@CP rate capacity at 2 CMarked as a best value within this paper | 892 mAh g-1 | 892 mAh g-1 | — | Text Exact Reported | p005 / article p340 · Results and discussion · Fig. 5b-c |
Li-S coin cell with Ni-BTC@CP cathode · Electrode
Control Tafel slopes for Li2S deposition (R2) and dissolution/oxidation (O1).
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-BTC@CP Tafel slope for Li2S dissolution/oxidation O1 | 161.37 mV dec-1 | 161.37 mV dec-1 | — | Text Exact Reported | p004 / article p339 · Results and discussion · Fig. 4c |
| Ni-BTC@CP Tafel slope for Li2S deposition R2 | 264.01 mV dec-1 | 264.01 mV dec-1 | — | Text Exact Reported | p004 / article p339 · Results and discussion · Fig. 4b |
Li-S coin cell with Ni-HHTP@CP cathode · Electrode
Tafel plots for Li2S deposition (R2) and dissolution/oxidation (O1).
| Property | Reported value | Normalised value | Uncertainty | Origin and quality | Source |
|---|---|---|---|---|---|
| Ni-HHTP@CP Tafel slope for Li2S dissolution/oxidation O1Marked as a best value within this paper | 120.16 mV dec-1 | 120.16 mV dec-1 | — | Text Exact Reported | p004 / article p339 · Results and discussion · Fig. 4c |
| Ni-HHTP@CP Tafel slope for Li2S deposition R2Marked as a best value within this paper | 167.83 mV dec-1 | 167.83 mV dec-1 | — | Text Exact Reported | p004 / article p339 · Results and discussion · Fig. 4b |