Electrochemistry Application — Overcoming Diffusion Limitation of Faradaic Processes: Property-Performance Relationships of 2D Conductive Metal-Organic Framework Cu3(HHTP)2 for Reversible Lithium-Ion Storage

9 measurement groups · 28 results

Reported values remain attached to the sample, method, conditions, extraction quality and source location that produced them.

Constant-current rate capability cycling

Galvanostatic cycling

Flake-like Cu3(HHTP)2 composite electrode · Electrode

Three-electrode Cu3(HHTP)2 || Li metal cells; 1 M LiTFSI in EC:EMC 3:7; 1.7-3.5 V; currents 100-2000 mA g-1 with 10 cycles each after 20 initial cycles at 100 mA g-1.

Atmosphere: argon-filled glovebox cell assembly
Geometry: Li metal half-cell, three-electrode configuration
Context: composite electrode comparison
Measurement source: p009 · Results and Discussion · Figure 4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Flake-like rate-test capacity at 100 mA g-1	ca. 100 mAh g-1	—	—	Text Approximate	p009 · Results and Discussion · Figure 4
Flake-like normalised retention advantage at 2000 mA g-1Marked as a best value within this paper	20% more of original capacity than rod-like at 2000 mA g-1	—	—	Text Approximate	p009 · Results and Discussion · Figure 4b
Rod-like rate-test capacity at 100 mA g-1	ca. 60 mAh g-1	—	—	Text Approximate	p009 · Results and Discussion · Figure 4

Scan-rate-dependent cyclic voltammetry and b-value analysis

Voltammetry

Flake-like Cu3(HHTP)2 composite electrode · Electrode

Potential window 1.7-3.5 V vs Li|Li+; scan rates 0.5, 1, 2, 5, 10, 20, 50 and 100 mV s-1 after initial cycles.

Geometry: Li metal half-cell, three-electrode configuration
Context: composite electrode
Measurement source: p010 to p011 · Results and Discussion · Figure 5; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Minimum flake-like b-valueMarked as a best value within this paper	b-values never below 0.75	—	—	Text Approximate	p009 · Results and Discussion · Figure 5a,b
Flake-like low-rate CV discharge capacity reference in Figure S19	90.9 mAh g-1 (100%)	100 %	—	Figure Axis Approximate	S-27 · 2.11 CV studies about kinetics · Figure S19
Flake-like bulk-controlled capacity QB	32.4 mAh g-1; 34.0%	34 %	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Flake-like surface-controlled capacity QSMarked as a best value within this paper	62.8 mAh g-1; 66.0%	66 %	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Flake-like total capacity QTMarked as a best value within this paper	95.2 mAh g-1	—	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Flake-like specific capacity at 100 mV s-1 CV scan rateMarked as a best value within this paper	39.8 mAh g-1 (43.8% of low-rate value)	43.8 %	—	Figure Axis Approximate	S-27 · 2.11 CV studies about kinetics · Figure S19

Scan-rate-dependent cyclic voltammetry and b-value analysis

Voltammetry

Rod-like Cu3(HHTP)2 composite electrode · Electrode

Potential window 1.7-3.5 V vs Li|Li+; scan rates 0.5, 1, 2, 5, 10, 20, 50 and 100 mV s-1 after initial cycles.

Geometry: Li metal half-cell, three-electrode configuration
Context: composite electrode
Measurement source: p009 to p010 · Results and Discussion · Figure 5; Figure S18; Table 1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Rod-like b-values closer to diffusion limit	rod-like MOF shows lower b-values closer to 0.5	—	—	Text Approximate	p009 · Results and Discussion · Figure 5a,b
Rod-like low-rate CV discharge capacity reference in Figure S19	69.5 mAh g-1 (100%)	100 %	—	Figure Axis Approximate	S-27 · 2.11 CV studies about kinetics · Figure S19
Rod-like bulk-controlled capacity QB	55.6 mAh g-1; 61.5%	61.5 %	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Rod-like surface-controlled capacity QS	34.8 mAh g-1; 38.5%	38.5 %	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Rod-like total capacity QT	90.4 mAh g-1	—	—	Table Exact Reported	p011 · Results and Discussion · Table 1
Rod-like specific capacity at 100 mV s-1 CV scan rate	16.1 mAh g-1 (23.2% of low-rate value)	23.2 %	—	Figure Axis Approximate	S-27 · 2.11 CV studies about kinetics · Figure S19

Cyclic voltammetry potential-window optimisation

Voltammetry

Flake-like Cu3(HHTP)2 composite electrode · Electrode

Cu3(HHTP)2 || Li metal cells; 1 M LiTFSI in EC:EMC 3:7; scan rate 0.5 mV s-1; varied upper and lower cut-off potentials.

Atmosphere: argon-filled glovebox cell assembly
Geometry: Li metal half-cell, three-electrode configuration
Context: composite electrode in Li half-cell
Measurement source: S-23 to S-24 · 2.9 Cyclic voltammetry studies · Figure S14; Figure S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Flake-like specific capacity at 0.5 mV s-1	ca. 100 mAh g-1	—	—	Text Approximate	p005 · Results and Discussion · Figure S14; Figure S15
Optimised voltage windowMarked as a best value within this paper	1.7-3.5 V vs Li\|Li+	—	—	Text Exact Reported	p005 · Results and Discussion · Figure S14; Figure S15
Theoretical Li storage capacity for z=1	96.5 mAh g-1	—	—	Text Exact Reported	p005 · Results and Discussion · Equation 1
Theoretical Li storage capacity for z=2	193 mAh g-1	—	—	Text Exact Reported	p005 · Results and Discussion · Equation 1
Theoretical Li storage capacity for z=3	289.5 mAh g-1	—	—	Text Exact Reported	p005 · Results and Discussion · Equation 1

Cyclic voltammetry potential-window optimisation

Voltammetry

Rod-like Cu3(HHTP)2 composite electrode · Electrode

Cu3(HHTP)2 || Li metal cells; 1 M LiTFSI in EC:EMC 3:7; scan rate 0.5 mV s-1; varied upper and lower cut-off potentials.

Atmosphere: argon-filled glovebox cell assembly
Geometry: Li metal half-cell, three-electrode configuration
Context: composite electrode in Li half-cell
Measurement source: p005 · Results and Discussion · Figure S14; Figure S15

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Rod-like specific capacity at 0.5 mV s-1	ca. 90 mAh g-1	—	—	Text Approximate	p005 · Results and Discussion · Figure S14; Figure S15

Long-term constant-current cycling

Galvanostatic cycling

Flake-like Cu3(HHTP)2 composite electrode · Electrode

Cu3(HHTP)2 || Li metal cells with 1 M LiTFSI in EC:EMC 3:7, 1.7-3.5 V vs Li|Li+, 100 mA g-1 for 100 cycles; shaded error from at least three cells.

Atmosphere: argon-filled glovebox cell assembly
Geometry: Li metal half-cell
Context: composite electrode in Li half-cell
Measurement source: S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Flake-like Coulombic efficiency after initial cycles	approximately 98-100%	—	—	Visual Estimate Range	S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20
Flake-like de-lithiation capacity after 100 cycles at 100 mA g-1	ca. 75 mAh g-1	—	—	Visual Estimate Approximate	S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20

Long-term constant-current cycling

Galvanostatic cycling

Rod-like Cu3(HHTP)2 composite electrode · Electrode

Cu3(HHTP)2 || Li metal cells with 1 M LiTFSI in EC:EMC 3:7, 1.7-3.5 V vs Li|Li+, 100 mA g-1 for 100 cycles; shaded error from at least three cells.

Atmosphere: argon-filled glovebox cell assembly
Geometry: Li metal half-cell
Context: composite electrode in Li half-cell
Measurement source: S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Rod-like Coulombic efficiency after initial cycles	approximately 98-100%	—	—	Visual Estimate Range	S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20
Rod-like de-lithiation capacity after 100 cycles at 100 mA g-1	ca. 38 mAh g-1	—	—	Visual Estimate Approximate	S-27 · 2.12 Constant current cycling and post mortem analysis · Figure S20

Stepped-potential electrochemical impedance spectroscopy

Impedance spectroscopy

Flake-like Cu3(HHTP)2 composite electrode · Electrode

EL-cells, three-electrode, Li CE/RE; 25 mV potential intervals after 10 min hold from 1.7 to 3.5 V; 10 mV amplitude from 100 kHz to 5 mHz after 10th, 30th and 50th cycles.

Geometry: Li metal half-cell, three-electrode configuration
Context: cycled composite electrode
Measurement source: S-8 · 1.8 Impedance spectroscopy · Figure 6; Figure S23-S24

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Low-frequency phase angle at 1.7-2.4 V	ca. 80 deg	—	—	Text Approximate	p012 · Results and Discussion · Figure 6
Low-frequency phase angle in redox-active windowMarked as a best value within this paper	ca. 60 deg from 2.5-3.5 V vs Li\|Li+	—	—	Text Approximate	p012 · Results and Discussion · Figure 6

Stepped-potential electrochemical impedance spectroscopy

Impedance spectroscopy

Rod-like Cu3(HHTP)2 composite electrode · Electrode

EL-cells, three-electrode, Li CE/RE; 25 mV potential intervals after 10 min hold from 1.7 to 3.5 V; 10 mV amplitude from 100 kHz to 5 mHz after 10th, 30th and 50th cycles.

Geometry: Li metal half-cell, three-electrode configuration
Context: cycled composite electrode
Measurement source: p011 to p012 · Results and Discussion · Figure 6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
High-frequency phase angle above 1 Hz	<30 deg	—	<	Text Approximate	p012 · Results and Discussion · Figure 6