Electrochemistry Application — Nanostructured Conductive Metal Organic Frameworks for Sustainable Low Charge Overpotentials in Li–Air Batteries

8 measurement groups · 34 results

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

Li-O2 galvanostatic battery cycling control electrolyte

Galvanostatic cycling

Cu-THQ nanoflakes coated on GDE · Electrode

1 M LiNO3 + 0.05 M InBr3 in TEGDME using Cu-THQ cathode; fixed capacities 1000 and 2000 mAh/g; current densities 1 and 2 A/g

Atmosphere: dry air
Geometry: battery analyser, Cu-THQ/GDE cathode
Context: application cathode with lower InBr3 concentration
Measurement source: 4 · S5. Li-O2 Battery Performance and Control Experiments · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
0.05 M InBr3 charge cut-off potential	~4.5 V	—	~	Text Approximate	4 · S5. Li-O2 Battery Performance and Control Experiments · Figure S4

Li-O2 galvanostatic battery cycling

Galvanostatic cycling

Cu-THQ nanoflakes coated on GDE · Electrode

Custom Swagelok cell assembled in argon glovebox; Li anode; Cu-THQ/GDE cathode; 40 uL electrolyte; dry air purged ca. 20 min; rest at least 1 h; electrolyte 1 M LiNO3 + 0.1 M InBr3 in TEGDME

Atmosphere: dry air operation; argon-filled assembly
Geometry: Swagelok Li-O2 cell
Context: application cathode with pristine c-MOF component
Measurement source: 2 · 2.2. Battery Performance · Figure 1f-h; Figure S3

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
cycle life at 1 A/g and 1000 mAh/gMarked as a best value within this paper	up to 300 cycles	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure S3
potential gap at 300th cycle	1.09 V at the 300th cycle	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure S3
cycle life at 1 A/g and 2000 mAh/g	150 cycles	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure 1f
potential gap at end of 1 A/g cycling	1.0 V at the end of cycling	—	—	Text Rounded Reported	3 · 2.2. Battery Performance · Figure 1f
potential gap at first cycle, 1 A/g 2000 mAh/gMarked as a best value within this paper	0.92 V	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure 1f
cycle life at 2 A/g and 2000 mAh/g	100 cycles	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure 1g
potential gap at 100th cycle, 2 A/g 2000 mAh/g	1.31 V at the 100th cycle	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure 1g-h
potential gap at first cycle, 2 A/g 2000 mAh/g	from 1 V at the 1st cycle	—	—	Text Rounded Reported	3 · 2.2. Battery Performance · Figure 1g-h
terminal charge potential under high ratesMarked as a best value within this paper	<3.7 V	—	<	Text Approximate	1 · Abstract
maximum tested rate-capability specific capacity	up to 3500 mAh/g	—	—	Text Exact Reported	3 · 2.2. Battery Performance · Figure 1i

Li-O2 galvanostatic battery cycling without Cu-THQ

Galvanostatic cycling

GDE-only cathode control · Electrode

GDE-only cathode; 1 M LiNO3 + 0.1 M InBr3 in TEGDME; 2 A/g; comparison to Cu-THQ

Atmosphere: dry air
Geometry: GDE cathode control cell
Context: non-MOF control
Measurement source: 4 · S5. Li-O2 Battery Performance and Control Experiments · Figure S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
GDE-only charge potential after 10 cycles	rapidly reaches 4.0 V only after 10 cycles	—	—	Text Rounded Reported	4 · S5. Li-O2 Battery Performance and Control Experiments · Figure S5
GDE-only control cycle count before cut-off	29 cycles	—	—	Text Exact Reported	4 · S5. Li-O2 Battery Performance and Control Experiments · Figure S5

electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Cu-THQ nanoflakes coated on GDE · Electrode

Cu-THQ cathode in Li-O2 battery; same cathode and electrolyte blend; two-electrode Swagelok cell in dry air; cycling at 2 A/g and 2000 mAh/g

Atmosphere: dry air
Geometry: two-electrode Swagelok Li-O2 cell
Context: GDE-supported c-MOF cathode
Measurement source: 11 · S10. Electrochemical Impedance Spectroscopy (EIS) · Figure S13

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-THQ cathode charge-transfer resistance at 10th cycle	46.7 ohms	—	—	Text Exact Reported	11 · S10. EIS · Figure S13
Cu-THQ cathode charge-transfer resistance at 15th cycle	46.3 ohms	—	—	Text Exact Reported	11 · S10. EIS · Figure S13
Cu-THQ cathode charge-transfer resistance at 5th cycle	37.5 ohms	—	—	Text Exact Reported	11 · S10. EIS · Figure S13
Cu-THQ cathode charge-transfer resistance before cyclingMarked as a best value within this paper	13 ohms	—	—	Text Exact Reported	11 · S10. EIS · Figure S13
Cu-THQ cathode solution resistance during cycling	18-23 ohms	—	range	Text Range	11 · S10. EIS · Figure S13
Cu-THQ cathode solution resistance before cycling	10 ohms	—	—	Text Exact Reported	11 · S10. EIS · Figure S13

cyclic voltammetry

Voltammetry

Cu-THQ nanoflakes coated on GDE · Electrode

Cu-THQ catalyst coated on GDE working electrode; Li chips counter/reference; 1 M LiNO3 in TEGDME; no InBr3; pure O2 purge 30 min; scan rate 10 mV/s

Atmosphere: O2-saturated electrolyte
Geometry: three-electrode setup
Context: GDE-supported c-MOF cathode
Measurement source: 3 · S4. Cyclic Voltammetry · Figure S2

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
CV scan rate	10 mV/s	—	—	Text Exact Reported	3 · S4. Cyclic Voltammetry · Figure S2

differential electrochemical mass spectroscopy (DEMS)

discharged Cu-THQ/GDE cathode · Electrode

Hiden Analytical HPR-40; O2 calibration with 2%, 5%, 10%, 20% O2 in Ar; after 10 cycles, 5% O2/Ar stream and DEMS outlet; discharge and charge 60 min at 2 A/g

Atmosphere: O2/Ar and Ar purging
Geometry: custom Swagelok cell
Context: discharged/charged Cu-THQ Li-O2 cathode
Measurement source: 5 · S6. Differential Electrochemical Mass Spectroscopy (DEMS) · Figure S6; Equation S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
electrons per O2 during chargeMarked as a best value within this paper	2.03	—	—	Text Exact Reported	5 · S6. DEMS
electrons per O2 during dischargeMarked as a best value within this paper	2.06	—	—	Text Exact Reported	5 · S6. DEMS · Equation S1
CO2 and H2O by-product detectionMarked as a best value within this paper	no CO2 nor H2O detected	—	—	Text Qualitative	5 · S6. DEMS
capacity normalised by catalyst plus Li2O2 massMarked as a best value within this paper	769.23 mAh per total mass of the catalyst and produced Li2O2	—	—	Calculated From Reported Exact Reported	6 · S6. DEMS · Equation S3
produced Li2O2 mass per dischargeMarked as a best value within this paper	0.16 mg	—	—	Calculated From Reported Rounded Reported	6 · S6. DEMS · Equation S2
fraction of theoretical Li-O2 specific capacity	approximately 65%	—	approximately	Calculated From Reported Approximate	6 · S6. DEMS · Equation S3

Li||Li galvanostatic symmetric-cell cycling and rate test

Galvanostatic cycling

Li||Li symmetric cell · Unknown

1 M LiNO3 and 0.1 M InBr3 in TEGDME; fixed stripping/plating capacity 0.5 mAh/cm2 at 0.5 mA/cm2; rate range 0.1-2 mA/cm2

Atmosphere: argon-filled glovebox assembly
Geometry: Li||Li symmetric coin cell
Context: application anode/electrolyte control
Measurement source: 4 · 2.4. Characterization of the Anode · Figure 3e-f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Li\|\|Li symmetric-cell stable cycling time	more than approximately 2000 h	—	>~	Text Approximate	4 · 2.4. Characterization of the Anode · Figure 3e
Li\|\|Li long-term overpotential	approximately 0.2 V	—	approximately	Text Approximate	4 · 2.4. Characterization of the Anode · Figure 3e
Li\|\|Li rate-test overpotential at 2 mA/cm2	as high as approximately 0.5 V	—	approximately	Text Approximate	4 · 2.4. Characterization of the Anode · Figure 3f
time to dendrite-induced short circuit	approximately 2265 h	—	approximately	Text Approximate	4 · 2.4. Characterization of the Anode · Figure 3e

electrochemical impedance spectroscopy (EIS)

Impedance spectroscopy

Li||Li symmetric cell · Unknown

VoltaLab potentiostat; sinusoidal 10 mV amplitude; 10 Hz to 100 kHz; fresh and 5/10/15 cycle Li||Li anodes; operated with 2 A/g current density

Atmosphere: argon-filled glovebox assembly
Geometry: Li||Li symmetrical coin cell
Context: application anode/electrolyte control
Measurement source: 10 · S10. Electrochemical Impedance Spectroscopy (EIS) · Figure S12; Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Li\|\|Li charge-transfer resistance fresh	R2 = 60 ohms	—	—	SI Table Exact Reported	10 · S10. EIS · Table S1
Li\|\|Li charge-transfer resistance after 10 cycles	R2 = 95 ohms	—	—	SI Table Exact Reported	10 · S10. EIS · Table S1
Li\|\|Li charge-transfer resistance after 15 cycles	R2 = 91.4 ohms	—	—	SI Table Exact Reported	11 · S10. EIS · Table S1
Li\|\|Li charge-transfer resistance after 5 cycles	R2 = 63 ohms	—	—	SI Table Exact Reported	10 · S10. EIS · Table S1