Electrochemistry Application — Multifunctional covalent organic framework with extended π-d conjugated structure for lithium-sulfur batteries

21 measurement groups · 50 results

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

electrolyte contact angle

Contact angle and wettability

Ni-COF@PP composite separator · Thin Film

Contact angle between separator and electrolyte

Geometry: separator film
Context: composite separator
Measurement source: p005-p006 / 3130-3131 · Results and discussion · Fig. 4a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
electrolyte contact angleMarked as a best value within this paper	13.3 deg	—	—	Text Exact Reported	p005-p006 / 3130-3131 · Results and discussion · Fig. 4b

electrolyte contact angle

Contact angle and wettability

commercial PP separator control · Thin Film

Contact angle between separator and electrolyte

Geometry: separator film
Context: PP control
Measurement source: p005-p006 / 3130-3131 · Results and discussion · Fig. 4a,b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
electrolyte contact angle	32.0 deg	—	—	Text Exact Reported	p005-p006 / 3130-3131 · Results and discussion · Fig. 4a

CV scan-rate b-value analysis

Voltammetry

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

CV curves at 0.1-0.5 mV s-1; log peak current versus log sweep rate

Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p009 · Supporting Figures · Fig. S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
b-value R1Marked as a best value within this paper	b(R1) = 0.72	—	—	Figure Axis Rounded Reported	p009 · Supporting Figures · Fig. S8
b-value R2Marked as a best value within this paper	b(R2) = 0.86	—	—	Figure Axis Rounded Reported	p009 · Supporting Figures · Fig. S8

CV scan-rate b-value analysis

Voltammetry

CR2032 Li-S cell with PP separator control · Electrode

CV curves at 0.1-0.5 mV s-1; log peak current versus log sweep rate

Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p009 · Supporting Figures · Fig. S8

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
b-value R1	b(R1) = 0.64	—	—	Figure Axis Rounded Reported	p009 · Supporting Figures · Fig. S8
b-value R2	b(R2) = 0.56	—	—	Figure Axis Rounded Reported	p009 · Supporting Figures · Fig. S8

galvanostatic cycling at 0.5 C

Galvanostatic cycling

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

200 cycles at 0.5 C

Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p008 / 3133 · Results and discussion · Fig. S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
capacity after 200 cycles at 0.5 CMarked as a best value within this paper	688 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. S11
initial capacity at 0.5 C	880 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. S11

galvanostatic cycling at 0.5 C

Galvanostatic cycling

CR2032 Li-S cell with PP separator control · Electrode

200 cycles at 0.5 C

Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p008 / 3133 · Results and discussion · Fig. S11

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
capacity after 200 cycles at 0.5 C	506 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. S11
initial capacity at 0.5 C	679 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. S11

galvanostatic cycling at 1 C

Galvanostatic cycling

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

300 cycles at 1 C

Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p008 / 3133 · Results and discussion · Fig. 5j

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
capacity after 300 cycles at 1 CMarked as a best value within this paper	609 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j
initial capacity at 1 C	827 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j
capacity attenuation rateMarked as a best value within this paper	0.087% per cycle over 300 cycles at 1 C	—	—	Text Exact Reported	p001 / 3126 · Abstract
capacity retention after 300 cycles at 1 CMarked as a best value within this paper	74%	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j

galvanostatic cycling at 1 C

Galvanostatic cycling

CR2032 Li-S cell with PP separator control · Electrode

300 cycles at 1 C

Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p008 / 3133 · Results and discussion · Fig. 5j

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
capacity after 300 cycles at 1 C	374 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j
initial capacity at 1 C	598 mA h g-1	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j
capacity retention after 300 cycles at 1 C	63%	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5j

separator ionic conductivity by EIS

Electrical conductivity Impedance spectroscopy

Ni-COF@PP composite separator · Thin Film

electrolyte-soaked SS | separator | SS cells, EIS 10^6 to 0.01 Hz

Geometry: SS | separator | SS
Context: composite separator
Measurement source: p004 · Ion conductivity measurement · Fig. 4e,f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
separator ionic conductivityMarked as a best value within this paper	1.70 mS cm-1	—	—	Text Exact Reported	p006 / 3131 · Results and discussion · Fig. 4e,f

separator ionic conductivity by EIS

Electrical conductivity Impedance spectroscopy

commercial PP separator control · Thin Film

electrolyte-soaked SS | separator | SS cells, EIS 10^6 to 0.01 Hz

Geometry: SS | separator | SS
Context: PP control
Measurement source: p004 · Ion conductivity measurement · Fig. 4e,f

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
separator ionic conductivity	0.49 mS cm-1	—	—	Text Exact Reported	p006 / 3131 · Results and discussion · Fig. 4e,f

visible Li2S6 adsorption and UV-vis

UV-visible and optical absorption spectroscopy

as-synthesised Ni-COF powder/precipitate · Powder

10 mM Li2S6 in DME prepared from Li2S:S = 1:5; 100 mg Ni-COF added to 10 mL solution

Atmosphere: glovebox during Li2S6 preparation
Geometry: solution adsorption
Context: pristine Ni-COF
Measurement source: p005 · Li2S6 adsorption test · Fig. 5a

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Li2S6 UV-vis absorbance band weakened	Li2S6 absorbance at ~280 nm weakens considerably after Ni-COF addition	—	—	Text Approximate	p006 / 3131 · Results and discussion · Fig. 5a
visible Li2S6 adsorption	clear fading of Li2S6 solution colour	—	—	Text Qualitative	p006 / 3131 · Results and discussion · Fig. 5a

CV of Li2S6 symmetric cell

Voltammetry

Ni-COF Li2S6 symmetric cell electrode · Electrode

20 uL Li2S6 catholyte (0.2 M Li2S6 in DOL/DME), mass loading ~1 mg cm-2, -1.0 to 1.0 V, 5 mV s-1

Geometry: symmetric Li2S6 cell
Context: Ni-COF electrode with PP comparison in figure
Measurement source: p005 · Li2S6 symmetric cells test · Fig. 5b

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Li2S6 symmetric-cell CV response	distinct redox peaks with higher redox current and lower voltage polarisation than bare PP	—	—	Text Qualitative	p007 / 3132 · Results and discussion · Fig. 5b

potentiostatic Li2S nucleation

Ni-COF-based carbon-cloth electrode for Li2S nucleation · Electrode

0.2 M Li2S8 and 1 M LiTFSI in tetraglyme; discharge to 2.06 V at 0.112 mA then hold at 2.05 V until current <10^-5 A

Geometry: carbon cloth cathode | Li anode
Context: Ni-COF-based electrode
Measurement source: p005-p006 · Li2S nucleation measurements · Fig. 5c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
Li2S deposition capacity, Ni-COF-based electrodeMarked as a best value within this paper	191.0 mA h g-1	—	—	Text Exact Reported	p007 / 3132 · Results and discussion · Fig. 5c
Li2S deposition capacity, PP-based control	110.3 mA h g-1	—	—	Text Exact Reported	p007 / 3132 · Results and discussion · Fig. 5d

Li+ diffusion coefficient from CV

Voltammetry

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

Randles-Sevcik analysis of CV curves at varied scan rates

Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p010 · Supporting Figures · Fig. S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
D_Li+ oxidative peak O1Marked as a best value within this paper	6.62 x 10^-13 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ oxidative peak O2Marked as a best value within this paper	6.01 x 10^-13 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ reductive peak R1Marked as a best value within this paper	4.04 x 10^-8 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ reductive peak R2Marked as a best value within this paper	1.19 x 10^-7 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9

Li+ diffusion coefficient from CV

Voltammetry

CR2032 Li-S cell with PP separator control · Electrode

Randles-Sevcik analysis of CV curves at varied scan rates

Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p010 · Supporting Figures · Fig. S9

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
D_Li+ oxidative peak O1	3.22 x 10^-14 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ oxidative peak O2	3.59 x 10^-14 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ reductive peak R1	2.10 x 10^-9 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9
D_Li+ reductive peak R2	3.60 x 10^-9 cm2 s-1	—	—	Figure Axis Rounded Reported	p010 · Supporting Figures · Fig. S9

chronoamperometry Li+ transference

Chronoamperometry

Ni-COF@PP composite separator · Thin Film

Li/Li symmetric cell, 10 mV constant step potential; EIS before/after

Atmosphere: Ar glovebox for symmetric-cell assembly
Geometry: Li | separator | Li
Context: composite separator
Measurement source: p004-p005 · Lithium ion transference number · Fig. 4c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
initial current I0	I0 = 0.71 mA	—	—	Figure Axis Rounded Reported	p006 / 3131 · Fig. 4d · Fig. 4d
steady-state current Is	Is = 0.65 mA	—	—	Figure Axis Rounded Reported	p006 / 3131 · Fig. 4d · Fig. 4d
Li+ transference numberMarked as a best value within this paper	0.76	—	—	Text Exact Reported	p006 / 3131 · Results and discussion · Fig. 4f

chronoamperometry Li+ transference

Chronoamperometry

commercial PP separator control · Thin Film

Li/Li symmetric cell, 10 mV constant step potential; EIS before/after

Atmosphere: Ar glovebox for symmetric-cell assembly
Geometry: Li | separator | Li
Context: PP control
Measurement source: p004-p005 · Lithium ion transference number · Fig. 4c,d

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
initial current I0	I0 = 0.23 mA	—	—	Figure Axis Rounded Reported	p006 / 3131 · Fig. 4c · Fig. 4c
steady-state current Is	Is = 0.17 mA	—	—	Figure Axis Rounded Reported	p006 / 3131 · Fig. 4c · Fig. 4c
Li+ transference number	0.32	—	—	Text Exact Reported	p006 / 3131 · Results and discussion · Fig. 4f

Li-S battery CV and Tafel

Voltammetry Tafel and polarisation analysis

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

CV at 0.1 mV s-1; Tafel slopes from reductive and oxidative CV peaks

Atmosphere: Ar-filled glovebox for cell assembly
Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p007 / 3132 · Results and discussion · Fig. 5e,f; Fig. S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
oxidative peak Tafel slopeMarked as a best value within this paper	~43.8 mV dec-1	—	—	Figure Axis Approximate	p009 · Supporting Figures · Fig. S7
reductive peak Tafel slopeMarked as a best value within this paper	72.1 mV dec-1	—	—	Text Exact Reported	p007 / 3132 · Results and discussion · Fig. 5f

Li-S battery CV and Tafel

Voltammetry Tafel and polarisation analysis

CR2032 Li-S cell with PP separator control · Electrode

CV at 0.1 mV s-1; Tafel slopes from reductive and oxidative CV peaks

Atmosphere: Ar-filled glovebox for cell assembly
Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p007 / 3132 · Results and discussion · Fig. 5e,f; Fig. S7

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
oxidative peak Tafel slope	~60.7 mV dec-1	—	—	Figure Axis Approximate	p009 · Supporting Figures · Fig. S7
reductive peak Tafel slope	80.7 mV dec-1	—	—	Text Exact Reported	p007 / 3132 · Results and discussion · Fig. 5f

galvanostatic rate performance

Galvanostatic cycling

CR2032 Li-S cell with Ni-COF@PP separator · Electrode

LAND CT2001A, 1.7-2.8 V, 1 C = 1672 mAh g-1; 0.5, 1.0, 2.0 and 4.0 C

Atmosphere: Ar-filled glovebox for assembly
Geometry: CR2032 Li-S cell
Context: Ni-COF@PP separator
Measurement source: p008 / 3133 · Results and discussion · Fig. 5g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
specific capacity at 0.5 C	964 mA h g-1 at 0.5 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 1.0 C	852 mA h g-1 at 1.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 2.0 C	778 mA h g-1 at 2.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 4.0 CMarked as a best value within this paper	719 mA h g-1 at 4.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g

galvanostatic rate performance

Galvanostatic cycling

CR2032 Li-S cell with PP separator control · Electrode

LAND CT2001A, 1.7-2.8 V, 1 C = 1672 mAh g-1; 0.5, 1.0, 2.0 and 4.0 C

Atmosphere: Ar-filled glovebox for assembly
Geometry: CR2032 Li-S cell
Context: PP separator control
Measurement source: p008 / 3133 · Results and discussion · Fig. 5g

Property	Reported value	Normalised value	Uncertainty	Origin and quality	Source
specific capacity at 0.5 C	681 mA h g-1 at 0.5 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 1.0 C	553 mA h g-1 at 1.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 2.0 C	482 mA h g-1 at 2.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g
specific capacity at 4.0 C	458 mA h g-1 at 4.0 C	—	—	Text Exact Reported	p008 / 3133 · Results and discussion · Fig. 5g