Electrochemistry Application — Highly Conductive Two-Dimensional Metal-Organic Frameworks for Resilient Lithium Storage with Superb Rate Capability

7 measurement groups · 32 results

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

cyclic voltammetry

Voltammetry

Cu-BHT/CNT/PVDF cathode, 70:20:10 · Electrode

scan rates 0.1 to 0.8 mV s-1; 1.5-3.0 V vs Li+/Li

Geometry: Li half-cell
Context: Cu-BHT/CNT/PVDF composite cathode
Measurement source: p005 / 12020 · Energy Storage Mechanism · Figure 3a; Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CV b value for oxidation peak	0.72	—	—	Text Exact Reported	p005 / 12020 · Energy Storage Mechanism · Figure 3a
CV b value for reduction peak	0.53	—	—	Text Exact Reported	p005 / 12020 · Energy Storage Mechanism · Figure 3a
CV log-log fit R2	R2 = 0.99	—	—	Caption Exact Reported	p005 / 12020 · Figure caption · Figure 3a

galvanostatic cycling in 2032 Li half-cell

Galvanostatic cycling

Cu-BHT/CNT/PVDF cathode, 70:20:10 · Electrode

1.5-3.0 V vs Li+/Li; 1 M LiTFSI in DOL/DME (1:1); 300 and 1000 mA g-1; 500 cycles

Atmosphere: Ar glovebox assembly; liquid electrolyte cell
Geometry: 2032 coin-type half-cell, Li metal counter electrode, Celgard 2400 separator
Context: Cu-BHT/CNT/PVDF composite cathode
Measurement source: p003-p004 / 12018-12019 · Electrochemical Performance · Figure 2a; Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
specific capacity at 50 mA g-1Marked as a best value within this paper	232 mAh g-1 at 50 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance
capacity retention after first 100 cycles at 300 mA g-1	94%	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2a
capacity decay rate at 1000 mA g-1	0.061% per cycle	—	—	SI Table Exact Reported	p010 / SI page 10 · Table S1 · Table S1
capacity decay rate at 300 mA g-1Marked as a best value within this paper	0.048% per cycle	—	—	SI Table Exact Reported	p010 / SI page 10 · Table S1 · Table S1
Li storage per Cu-BHT unit at 50 mA g-1Marked as a best value within this paper	3.94 Li+ per Cu3(C6S6)	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance
second-cycle charge capacity at 300 mA g-1	174.8 mAh g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2a
second-cycle discharge capacity at 300 mA g-1	175 mAh g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2a
capacity after 500 cycles at 1000 mA g-1	156 mAh g-1 after 500 cycles at 1000 mA g-1	—	—	SI Table Exact Reported	p010 / SI page 10 · Table S1 · Table S1
capacity after 500 cycles at 300 mA g-1	175 mAh g-1 after 500 cycles at 300 mA g-1	—	—	SI Table Exact Reported	p010 / SI page 10 · Table S1 · Table S1
fraction of theoretical capacity at 300 mA g-1	75%	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2a
four-electron theoretical capacity	236 mAh g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Scheme 1c

electrochemical impedance spectroscopy

Impedance spectroscopy

Cu-BHT/CNT/PVDF cathode, 70:20:10 · Electrode

100 kHz to 100 mHz; Nyquist plots for pristine, 1st, 44th and 108th cycle plus potential-dependent EIS

Geometry: Li half-cell; equivalent circuit with Rs, Rct, CPE1, CPE2, Ws and Wo
Context: Cu-BHT/CNT/PVDF composite cathode
Measurement source: p005 / 12020 · Energy Storage Mechanism · Figure 3b-d; Figure S12

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Warburg coefficient after 108th cycleMarked as a best value within this paper	sigma = 12.74 at 108th cycle	—	—	Text Exact Reported	p005 / 12020 · Energy Storage Mechanism · Figure 3d

galvanostatic capacity at high mass loading

Galvanostatic cycling

high-loading Cu-BHT/CNT/PVDF cathode, 90:5:5 · Electrode

50 mA g-1; mass loadings 1.22, 2.52 and 3.06 mg cm-2 discussed

Geometry: 2032 coin-type half-cell
Context: high-loading Cu-BHT/CNT/PVDF composite cathode
Measurement source: p004 / 12019 · Electrochemical Performance · Figure 2e; Figure S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
5 wt% CNT electrode capacity at 300 mA g-1	ca. 105 mAh g-1 at 300 mA g-1	—	—	Text Approximate	p007 / SI page 7 · Figure S10 discussion · Figure S11
high-loading rate capacity at 1000 mA g-1	around 80 mAh g-1 at 1000 mA g-1	—	—	Text Approximate	p004 / 12019 · Electrochemical Performance · Figure S11
specific capacity at 3.06 mg cm-2 loadingMarked as a best value within this paper	189 mAh g-1 at 3.06 mg cm-2 and 50 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2e; Figure S9
energy density at 3.06 mg cm-2 loadingMarked as a best value within this paper	391 Wh kg-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2e; Figure S9
specific capacity at 2.52 mg cm-2 loading	202 mAh g-1 at 2.52 mg cm-2	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2e
Li storage at 2.52 mg cm-2 loading	3.4 Li+ per Cu-BHT unit	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2e

galvanostatic charge-discharge control

Galvanostatic cycling

CNT-free Cu-BHT/PVDF control electrode · Electrode

first cycle at 300 mA g-1; Cu-BHT/PVDF without CNTs

Geometry: Li half-cell
Context: CNT-free control electrode
Measurement source: p007 / SI page 7 · Figure S10 discussion · Figure S10

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CNT-free electrode capacity	ca. 2.1 mAh g-1 at 300 mA g-1	—	—	Text Approximate	p007 / SI page 7 · Figure S10 discussion · Figure S10

galvanostatic rate performance

Galvanostatic cycling

Cu-BHT/CNT/PVDF cathode, 70:20:10 · Electrode

current densities from 100 to 2000 mA g-1 in 1.5-3.0 V vs Li+/Li

Geometry: 2032 coin-type half-cell
Context: Cu-BHT/CNT/PVDF composite cathode
Measurement source: p004 / 12019 · Electrochemical Performance · Figure 2c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
rate capacity at 1000 mA g-1	133 mAh g-1 at 1000 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 100 mA g-1	174 mAh g-1 at 100 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 1500 mA g-1	123 mAh g-1 at 1500 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 2000 mA g-1	100 mAh g-1 at 2000 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 200 mA g-1	167 mAh g-1 at 200 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 400 mA g-1	162 mAh g-1 at 400 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
rate capacity at 800 mA g-1	135 mAh g-1 at 800 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c
capacity recovery after high-rate cycling	166 mAh g-1, 99.4% of initial capacity at 100 mA g-1	—	—	Text Exact Reported	p004 / 12019 · Electrochemical Performance · Figure 2c

open-circuit potential self-discharge test

Cu-BHT/CNT/PVDF cathode, 70:20:10 · Electrode

full-charge state; OCP vs time during 10-day shelving

Geometry: Li half-cell
Context: Cu-BHT/CNT/PVDF composite cathode
Measurement source: p005 / 12020 · Electrochemical Performance · Figure 2f; Table S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
self-discharge rateMarked as a best value within this paper	0.00025 V h-1	—	—	SI Table Exact Reported	p012 / SI page 12 · Table S2 · Table S2
capacity retention after shelvingMarked as a best value within this paper	98.1% after 10 days	—	—	SI Table Exact Reported	p012 / SI page 12 · Table S2 · Table S2