READ ME File For Dataset for In-operando evaluation of selectivity and transference number of lithium conductive membranes

Dataset DOI:10.5258/SOTON/D0748

ReadMe Author: Nuria Garcia-Araez, University of Southampton

This dataset supports the publication:
AUTHORS: Garcia-Araez, N., Meddings, N., & Owen, J. R. (2018). 
TITLE: In-operando evaluation of selectivity and transference number of lithium conductive membranes. 
JOURNAL:ChemElectroChem. 
DOI: 10.1002/celc.201801372


The figures are as follows:

Fig. 2  Figure 2. (a) Increase over time in the concentration of iodide in the working electrode compartment of a two-compartment cell, as described in Fig. 1, initially containing 0.1 m LiI in the counter electrode compartment only, under open circuit conditions. The compartments are separated by a Celgard membrane coated on both sides by lithiated Nafion. The plot shows results from repeat experiments obtained with two different cells. 
(b) Data shown in (a), replotted using Equation 3.


Fig. 3  Figure 3. (a) Increase over time in the concentration of iodide in the working electrode compartment of a two-compartment cell, under open circuit conditions (squares, data of Figure 2a) and on application of current of 1 mA cm2 (triangles). The plot shows results from repeat experiments obtained with two different cells for each condition. 
(b) Data shown in (a), replotted using equation 3

Supplementary materials

Fig. S4  Figure S4 (a) Cyclic voltammogram (first cycle) recorded at a scan rate of 20 mV s-1 in a cell with glassy carbon working electrode, 0.1 molal LiI + 1 molal LiTFSI in diglyme electrolyte, and lithium counter electrode. Cell set-up is shown in Figure S3b. Forward scan in the positive direction. 
(b) Successive cyclic voltammograms at 30 minute intervals recorded in the same cell as (a). 
(c) Cyclic voltammograms (third cycle) recorded in two different cells using the same cell set-up and conditions as (a).  
(d) Cyclic voltammograms (third cycle) recorded using the cell set-up shown in Figure S3a (blue) and Figure S3b (orange)

Fig. S5 Figure S5. Peak current of the process at ca. 3.9 V vs. Li+/Li, obtained from cyclic voltammograms (third cycle) recorded in cells with electrolytes containing different concentrations of LiI. All other experimental conditions as in Figure S4a.

Fig. S6 Figure S6. Impedance measurements of liquid electrolyte (red), liquid electrolyte plus uncoated membrane (blue) and liquid electrolyte plus coated membrane (black)

Fig. S7  Figure S7. Increase over time in the concentration of iodide in the working electrode compartment of a two-compartment cell, initially containing 0.1 molal LiI in the counter electrode compartment only. The compartments are separated by either an uncoated Celgard membrane (crosses), or a Celgard membrane coated on both sides by LITHion (dots). See cell sketch in Figure 4 in the main text or Figure S3. Other experimental conditions as in Figure S4. Concentrations were calculated from I3-/I2 peak currents using the calibration curve in Figure S5.


Date of data collection: ADD IN COLLECTION DATES

Information about geographic location of data collection: University of Southampton, U.K.

Licence: Creative Commons: Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/

Related projects:
EPSRC Centre for Doctoral Training in Energy Storage and its Applications EP/L016818/1
EPSRC FunRedox EPSRC Fellowship EP/N024303/1

Date that the file was created: December, 2018