Electrochemistry Application — Conductive Metal–Organic Frameworks Anchoring on V3O7·H2O Nanobelts Toward High-Capacity and Long-Life Zinc-Ion Batteries

15 measurement groups · 59 results

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

Cyclic voltammetry (CHI660E)

Voltammetry

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Zn coin cells with Zn foil anode, glass fibre separator, 3 M Zn(CF3SO3)2 electrolyte; voltage window 0.2-1.6 V; CV at 0.1 or 0.2 mV s-1 in text/figure caption.

Geometry: CR2032 coin cell
Context: target composite compared with VO and Cu-HHTP electrodes
Measurement source: p003-p004 · 2.2. Electrochemical Performance Evaluation · Figure 3a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Cu-HHTP control redox activity	minimal redox activity	—	—	Qualitative Qualitative	p004 · 2.2 · Figure 3a
Oxidation peak potential	0.61 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Oxidation peak potential	0.94 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Oxidation peak potential	1.41 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Reduction peak potential	0.47 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Reduction peak potential	0.69 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Reduction peak potential	0.92 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a
Reduction peak potential	1.33 V	—	—	Text Exact Reported	p003-p004 · 2.2 · Figure 3a

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

0.2 A g-1 cycling for VO, VO@Cu-HHTP-1, VO@Cu-HHTP-2, and VO@Cu-HHTP-3.

Geometry: CR2032 coin cell
Context: target composite compared with controls
Measurement source: p005 · 2.2. Electrochemical Performance Evaluation · Figure 3e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacity after activation at 0.2 A g-1Marked as a best value within this paper	518 mAh g-1 after 35 cycles	—	—	Text Exact Reported	p005 · 2.2 · Figure 3e
Capacity retention after 100 cycles at 0.2 A g-1	89%	—	—	Text Exact Reported	p005 · 2.2 · Figure 3e
Specific capacity at 0.2 A g-1, VO control	377 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3e
Specific capacity at 0.2 A g-1, VO@Cu-HHTP-1	362 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3e
Specific capacity at 0.2 A g-1, VO@Cu-HHTP-3	388 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3e

Long-term galvanostatic cycling

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

10 A g-1 long-cycle stability for VO, VO@Cu-HHTP-1, VO@Cu-HHTP-2, and VO@Cu-HHTP-3.

Geometry: CR2032 coin cell
Context: target composite compared with controls
Measurement source: p005 · 2.2. Electrochemical Performance Evaluation · Figure 3g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Activated specific capacity at 10 A g-1Marked as a best value within this paper	381 mAh g-1 after 350 cycles	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g
Initial specific capacity at 10 A g-1	293 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g
Capacity retention after 5000 cycles at 10 A g-1Marked as a best value within this paper	81%	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g
Capacity retention after long cycling, VO	61%	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g
Capacity retention after long cycling, VO@Cu-HHTP-1	64%	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g
VO@Cu-HHTP-3 cycle life at 10 A g-1	3000 times	—	—	Text Exact Reported	p005 · 2.2 · Figure 3g

Long-term galvanostatic cycling

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Zn||VO@Cu-HHTP-2 cathode at 1 A g-1 for 2000 cycles; Figure 3h also reports low-temperature context in caption.

Geometry: CR2032 coin cell
Context: target composite
Measurement source: p005 · 2.2. Electrochemical Performance Evaluation · Figure 3h

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacity after 2000 cycles at 1 A g-1	285.5 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3h
Capacity retention over 2000 cycles at 1 A g-1Marked as a best value within this paper	100%	—	—	Text Exact Reported	p005 · 2.2 · Figure 3h

Electrochemical impedance spectroscopy

Impedance spectroscopy

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Nyquist curves at different cycling stages under 1 A g-1 and comparison of all samples in Figure S6.

Geometry: CR2032 coin cell
Context: target composite compared with controls
Measurement source: p007 · 2.2. Electrochemical Performance Evaluation · Figure 4e; Figure S6

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Relative charge-transfer resistanceMarked as a best value within this paper	VO@Cu-HHTP-2 lower Rct than other three electrodes	—	—	Qualitative Qualitative	p007 · 2.2 · Figure S6

Galvanostatic fast-charge/slow-discharge test

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Discharge at 0.2 A g-1 and charge at 5 A g-1 in Zn||VO@Cu-HHTP-2 coin batteries.

Geometry: CR2032 coin cell
Context: target composite
Measurement source: p004 · 2.2. Electrochemical Performance Evaluation · Figure 3b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Charging time at 5 A g-1	6.5 min	—	—	Text Exact Reported	p004 · 2.2 · Figure 3b
Discharging time at 0.2 A g-1	165 min	—	—	Text Exact Reported	p004 · 2.2 · Figure 3b

Galvanostatic intermittent titration technique (GITT)

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Zn2+ diffusion coefficient comparison between VO@Cu-HHTP-2 and VO.

Geometry: CR2032 coin cell
Context: target composite compared with VO control
Measurement source: p006 · 2.2. Electrochemical Performance Evaluation · Figure 4d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Relative Zn2+ diffusion coefficientMarked as a best value within this paper	VO@Cu-HHTP-2 higher DZn than VO	—	—	Qualitative Qualitative	p006 · 2.2 · Figure 4d

Inductively coupled plasma emission spectrometry

Bulk elemental and compositional analysis

VO@Cu-HHTP-2 composite cathode electrode · Electrode

VO and VO@Cu-HHTP-2 electrodes immersed in 3 mL of 3 M Zn(CF3SO3)2 electrolyte for 10 days.

Geometry: Soaking test
Context: target composite compared with pristine VO control
Measurement source: p004 · 2.2. Electrochemical Performance Evaluation · Figure S4

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Vanadium concentration after soaking, VO@Cu-HHTP-2Marked as a best value within this paper	1.34 mg L-1	—	—	Text Exact Reported	p004 · 2.2 · Figure S4
Vanadium concentration after soaking, VO	4.91 mg L-1	—	—	Text Exact Reported	p004 · 2.2 · Figure S4

CV kinetic analysis

Voltammetry

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Scan rates from 0.2 to 1 mV s-1; power-law b-value fitting and capacitive/diffusion contribution analysis.

Geometry: CR2032 coin cell
Context: target composite
Measurement source: p005 · 2.2. Electrochemical Performance Evaluation · Figure 4a-c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Power-law b value, peak 2	b2 = 1.06	—	—	Text Exact Reported	p005 · 2.2 · Figure 4b
Power-law b value, peak 3	b3 = 0.85	—	—	Text Exact Reported	p005 · 2.2 · Figure 4b
Power-law b value, peak 5	b5 = 0.98	—	—	Text Exact Reported	p005 · 2.2 · Figure 4b
Power-law b value, peak 6	b6 = 0.88	—	—	Text Exact Reported	p005 · 2.2 · Figure 4b
Capacitive contribution at 0.2 mV s-1	93.7%	—	—	Figure Axis Rounded Reported	p005 · 2.2 · Figure 4c
Capacitive contribution at 0.4 mV s-1	95.1%	—	—	Figure Axis Rounded Reported	p005 · 2.2 · Figure 4c
Capacitive contribution at 0.6 mV s-1	95.9%	—	—	Figure Axis Rounded Reported	p005 · 2.2 · Figure 4c
Capacitive contribution at 0.8 mV s-1	96.5%	—	—	Figure Axis Rounded Reported	p005 · 2.2 · Figure 4c
Capacitive contribution at 1.0 mV s-1Marked as a best value within this paper	97.1%	—	—	Text Exact Reported	p005 · 2.2 · Figure 4c
Capacitive contribution range	93.7% to 97.1%	—	—	Text Range	p005 · 2.2 · Figure 4c

Low-temperature rate capability

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Zn||VO@Cu-HHTP-2 battery tested at 0 C.

Temperature: 273
Geometry: CR2032 coin cell
Context: target composite
Measurement source: p005 · 2.2. Electrochemical Performance Evaluation · Figure S5

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacity at 0 C and 0.2 A g-1	338 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure S5
Specific capacity at 0 C and 5 A g-1	177 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure S5

Open-circuit voltage shelf stability

VO@Cu-HHTP-2 composite cathode electrode · Electrode

OCV after first full charge at 0.2 A g-1.

Geometry: CR2032 coin cell
Context: target composite
Measurement source: p004 · 2.2. Electrochemical Performance Evaluation · Figure 3c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Open-circuit voltage retained on shelf	>1.0 V for over 150 h	—	>	Text Approximate	p004 · 2.2 · Figure 3c

Pouch-cell EIS and GCD under folding

Impedance spectroscopy Galvanostatic cycling

Zn||VO@Cu-HHTP-2 pouch battery · Electrode

Flexible pouch batteries tested at bending angles 0, 90, 180, 270, 360 degrees and restored state; GCD at 1 A g-1.

Geometry: Flexible pouch cell
Context: target composite pouch device
Measurement source: p008 · 2.4. Soft-Pack Battery · Figure 6b-c

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pouch battery charge/discharge time under violent deformation	3700 s	—	—	Text Rounded Reported	p001 · Abstract
Pouch-cell charge plateau at 1 A g-1	0.7 V	—	—	Text Rounded Reported	p008 · 2.4 · Figure 6c
Pouch-cell discharge plateau at 1 A g-1	0.5 V	—	—	Text Rounded Reported	p008 · 2.4 · Figure 6c
Pouch-cell Rct at 90 degree fold	19 ohm	—	—	Text Exact Reported	p008 · 2.4 · Figure 6b

Pouch-cell rate capability and cycling

Zn||VO@Cu-HHTP-2 pouch battery · Electrode

Flexible Zn||VO@Cu-HHTP-2 pouch batteries at 0.2-10 A g-1 and 1 A g-1 cycling.

Geometry: Flexible pouch cell
Context: target composite pouch device
Measurement source: p008 · 2.4. Soft-Pack Battery · Figure 6d-e

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Pouch-cell capacity after 700 cycles at 1 A g-1	252 mAh g-1 after 700 cycles	—	—	Text Exact Reported	p008 · 2.4 · Figure 6e
Pouch-cell capacity retention after 700 cyclesMarked as a best value within this paper	almost 100%	—	almost	Text Approximate	p008 · 2.4 · Figure 6e
Pouch-cell specific capacity at 0.2 A g-1	316 mAh g-1	—	—	Text Exact Reported	p008 · 2.4 · Figure 6d
Pouch-cell specific capacity at 10 A g-1	150 mAh g-1	—	—	Text Exact Reported	p008 · 2.4 · Figure 6d
Pouch-cell recovered capacity at 0.2 A g-1Marked as a best value within this paper	333 mAh g-1	—	—	Text Exact Reported	p008 · 2.4 · Figure 6d

Galvanostatic rate capability

Galvanostatic cycling

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Zn||VO@Cu-HHTP-2 coin cells at 0.2, 0.5, 1, 3, 5, 7, and 10 A g-1, then returned to 0.2 A g-1.

Geometry: CR2032 coin cell
Context: target composite compared with VO, VO@Cu-HHTP-1, and VO@Cu-HHTP-3
Measurement source: p004-p005 · 2.2. Electrochemical Performance Evaluation · Figure 3d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Specific capacity at 0.2 A g-1	509 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 0.5 A g-1	494 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 10 A g-1	347 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 1 A g-1	478 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 3 A g-1	438 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 5 A g-1	410 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Specific capacity at 7 A g-1	382 mAh g-1	—	—	Text Exact Reported	p004-p005 · 2.2 · Figure 3d
Recovered specific capacity after returning to 0.2 A g-1Marked as a best value within this paper	521 mAh g-1	—	—	Text Exact Reported	p005 · 2.2 · Figure 3d

SI comparison table extraction

VO@Cu-HHTP-2 composite cathode electrode · Electrode

Table S1 row for this work: VO@Cu-HHTP-2 in 3 M Zn(CF3SO3)2, 0.2-1.6 V, capacity and cyclic stability summary.

Geometry: CR2032 coin cell
Context: target composite; first-hand row in authors' comparison table
Measurement source: p012 · S2. Figures · Table S1

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Table S1 electrolyte concentration	3 M Zn(CF3SO3)2	—	—	SI Table Exact Reported	p012 · S2. Figures · Table S1
Table S1 potential window for VO@Cu-HHTP-2	0.2-1.6 V	—	—	SI Table Range	p012 · S2. Figures · Table S1