Electrochemistry Application — 2D Tetrathiafulvalene-Based Metal–Organic Framework Linked by Hydrogen Bonding for Boosting Long-Cycle Stability of Lithium-Ion Batteries

6 measurement groups · 26 results

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

Electrochemical impedance spectroscopy

Impedance spectroscopy

m-TTFTB-Co-MOF anode electrode in coin cell · Electrode

EIS after 1, 10 and 20 cycles at 1 A g^-1; fitting parameters reported in SI Table S3. Methods note frequency range 100 kHz-0.1 Hz and amplitude 10 mV.

Geometry: Coin-cell anode electrode.
Context: composite electrode containing target MOF active material
Measurement source: main p.4-5 · 2.4. Electrochemical Properties · Figure 4; Table S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charge-transfer resistance after 10 cycles	140 ohm	—	—	SI Table Exact Reported	SI p.4 · Table S3 · Table S3
Charge-transfer resistance after 1 cycle	150 ohm	—	—	SI Table Exact Reported	SI p.4 · Table S3 · Table S3
Charge-transfer resistance after 20 cyclesMarked as a best value within this paper	120 ohm	—	—	SI Table Exact Reported	SI p.4 · Table S3 · Table S3

LiFePO4 full-cell galvanostatic cycling

Galvanostatic cycling

Prelithiated m-TTFTB-Co-MOF||LiFePO4 full cell · Electrode

Prelithiated m-TTFTB-Co-MOF negative electrode and LiFePO4 positive electrode; full battery cycled at 0.2 A g^-1 for 40 cycles.

Geometry: Coin full cell.
Context: full-cell composite electrode context
Measurement source: main p.5-6 · 2.4. Electrochemical Properties · Figure S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Full-cell capacity after 40 cyclesMarked as a best value within this paper	765.0 mAh g^-1 at 0.2 A g^-1 after 40 cycles	765 mA h g^-1	—	Text Exact Reported	main p.5-6 · 2.4. Electrochemical Properties · Figure S8

Lithium-ion battery cyclic voltammetry

Voltammetry

m-TTFTB-Co-MOF anode electrode in coin cell · Electrode

CR2025 two-electrode coin-cell LIB using m-TTFTB-Co-MOF as active anode; voltage window 0.01-3.0 V; CV scan rate 0.1 mV s^-1.

Geometry: Coin-cell anode electrode.
Context: composite electrode containing target MOF active material
Measurement source: main p.4 · 2.4. Electrochemical Properties · Figure 2a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
First anodic-scan broad peak	1.02 V	—	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 2a
First-cycle cathodic peak	about 0.44 V	—	—	Text Approximate	main p.4 · 2.4. Electrochemical Properties · Figure 2a
Subsequent-cycle cathodic peak after shift	0.87 V	—	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 2a

Galvanostatic charge/discharge cycling

Galvanostatic cycling

m-TTFTB-Co-MOF anode electrode in coin cell · Electrode

CR2025 coin-cell LIB, m-TTFTB-Co-MOF active anode material, voltage window 0.01-3.0 V; initial cycle at 0.1 A g^-1 and cycling reported at 0.2 A g^-1.

Geometry: Coin-cell anode electrode.
Context: composite electrode containing target MOF active material
Measurement source: main p.4 · 2.4. Electrochemical Properties · Figures 2b and 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Reversible specific capacity after 133 cycles at 0.2 A g^-1	944.6 mA h g^-1	944.6 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3a
Reversible specific capacity after 54 cycles at 0.2 A g^-1	869.7 mA h g^-1	869.7 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3a
Coulombic efficiency after 133 cycles at 0.2 A g^-1	99.0%	—	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3a
Discharge capacity, 2nd cycle at 0.2 A g^-1	1302.6 mA h g^-1	1302.6 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3a
Discharge capacity, 6th cycle at 0.2 A g^-1	1007.98 mA h g^-1	1007.98 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3a
Initial Coulombic efficiency	70.3%	—	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 2b
Initial charge capacity at 0.1 A g^-1	1628.02 mA h g^-1	1628.02 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 2b
Initial discharge capacity at 0.1 A g^-1Marked as a best value within this paper	2314.44 mA h g^-1	2314.44 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 2b
Approximate long-cycle capacity at 1 A g^-1	approximately 690 mA h g^-1 after about 1000 cycles	690 mA h g^-1	visual estimate from Figure 3d	Figure Axis Approximate	main p.5 · 2.4. Electrochemical Properties · Figure 3d
Approximate long-cycle capacity at 5 A g^-1	approximately 430 mA h g^-1 after about 1500 cycles	430 mA h g^-1	visual estimate from Figure 3d	Figure Axis Approximate	main p.5 · 2.4. Electrochemical Properties · Figure 3d

Rate capability galvanostatic cycling

Galvanostatic cycling

m-TTFTB-Co-MOF anode electrode in coin cell · Electrode

m-TTFTB-Co-MOF electrode tested at 0.2, 0.5, 1.0, 2.0, 5.0 and 10 A g^-1, then returned to 0.2 A g^-1.

Geometry: Coin-cell anode electrode.
Context: composite electrode containing target MOF active material
Measurement source: main p.4 · 2.4. Electrochemical Properties · Figure 3b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Rate capacity at 0.2 A g^-1	911.1 mA h g^-1	911.1 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Rate capacity at 0.5 A g^-1	808.9 mA h g^-1	808.9 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Rate capacity at 10 A g^-1	311.3 mA h g^-1	311.3 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Rate capacity at 1.0 A g^-1	724.3 mA h g^-1	724.3 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Rate capacity at 2.0 A g^-1	615.8 mA h g^-1	615.8 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Rate capacity at 5.0 A g^-1	441.3 mA h g^-1	441.3 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b
Recovered capacity after returning to 0.2 A g^-1Marked as a best value within this paper	1066 mA h g^-1	1066 mA h g^-1	—	Text Exact Reported	main p.4 · 2.4. Electrochemical Properties · Figure 3b

Three-electrode cyclic voltammetry redox test

Voltammetry

m-TTFTB-Co-MOF DMF/Nafion/TBAPF6 redox-test dispersion · Unknown

Glassy carbon working electrode, platinum wire counter electrode, double-salt-bridge SCE; DMF/TBAPF6 electrolyte; N2 purged 15 min; scan rate 100 mV s^-1; 25 +/- 1 C.

Temperature: 298
Atmosphere: N2-purged
Geometry: Glassy carbon working electrode, 3 mm diameter in main description.
Context: MOF dispersion on electrode with Nafion/electrolyte
Measurement source: main p.3 and p.6 · 2.3. Redox Properties; Redox Test · Figure S3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
TTF/TTF radical cation onset oxidation potential	0.60 V vs. SCE	—	—	Text Exact Reported	main p.4 · 2.3. Redox Properties · Figure S3a
TTF radical cation/TTF dication onset oxidation potential	0.77 V vs. SCE	—	—	Text Exact Reported	main p.4 · 2.3. Redox Properties · Figure S3a