Synthesis and optimization of
electrolyte of Li-air cells
STABLE kick-off meeting
Torino - October 25th- 26th, 2012
David Amantia
Christophe Aucher
LEITAT
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Summary
 Overview
o Overall goals
o Workplan
o Deliverables
o Milestones
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Overview Information available from
page 6 to 51 of
Annex I
Work package number
WP 3
Start date or starting
event:
M32
Work package title
Synthesis and optimization of electrolyte of Li-air cells
Activity Type
RTD
LEITAT
LUREDERRA
IVF
UCC
SAU
CEGASA
ELAPHE
Person-months per
beneficiary:
POLITO
Participant id
14
20
6
0
0
8
6
2
Start date or starting event:
End date:
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
M1
M32
Summary
o Overview
 Overall goals
o Workplan
o Deliverables
o Milestones
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Overall goals Information available
from page 6 to 51 of Annex I
Objectives
 - Synthesis and characterization of stable electrolyte with low
viscosity and high oxygen solubility to increase the discharge
current density.
 Synthesis, characterization and evaluation of the
performance of the electrolyte with different additives in
terms of their effect to volatility, viscosity and conductivity of
electrolyte.
 - Determination of the most suitable lithium air battery
materials and technology for the use in EVs.
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Summary
o Overview
o Overall goals
 Workplan
o Deliverables
o Milestones
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Workplan Information available from
page 6 to 51
of Annex I
Work will be focused on:
-the
preparation/characterization of IL/solvent/additives/salt melts
-studies on SEI
-Optimization
of PC/EC/DEC/DMC melts
-Build new ILs by ions exchange from conventional RTILs or other precursors.
-Additives for by-products and oxygen solubility
Challenge = reach the best ratio between:
Conductivity
(& viscosity, temperature) ↑
Solvent evaporation
Electrolyte quantity
Oxygen & by-product solubility ↑
Water content ↓, Hydrophobicity ↑
Electrochemical windows ↑
Stability (cycling) ↑
Safety ↑
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Workplan Information available from
page 6 to 51
of Annex I



Task 3.1: Synthesis and optimization of room temperature ionic
liquids (RTILs) or combinations solvents properties for the aim of
obtaining good performance electrolyte solvents (Month 1- Month
32, POLITO (14 MM), LEITAT (12 MM) and CEG (6 MM)).
Task 3.2: Investigation on influence of aprotic additives to RTILs on
properties and oxygen solubility etc. (Month1- Month 32, 8MM,
SAU).
Task 3.3: Investigation and evaluation of physical properties of
RTILs and the optimum filling amount of electrolyte (Month 1- Month
32, LEITAT (8MM), LUREDERRA (6MM), Elaphe (2MM))
Milestones (M7, M8, M9)
Deliverables (D3.1, D3.2, D3.3)
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Summary
o Overview
o Overall goals
o Workplan
 Deliverables
o Milestones
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Deliverables Information available from
page 6 to 51
of Annex I
D1.1
Title
Description
Date
Electrolyte solvent
synthesis and
optimization (I):
Report on
description of
preparation and
characterization
of lithium air
battery
electrolytes:
1) Preparation and characterization of
salt and different compositions of ionic
liquids with physical and chemical
specifications
M12
2) Preparation and characterization of
suitable additives or fillers to RTILs
3) Investigation of suitable conditions
for electrolyte such as filling amount
and environment impact specifications
such as temperature and pressure etc.
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Summary
o Overview
o Overall goals
o Workplan
o Deliverables
 Milestones
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Milestones Information available from
page 6 to 51 of Annex I
Milestone number: 3
Milestone name: MS7, MS8, MS9
Lead beneficiary: LEITAT
Delivery date: M12, M24, M32
STABLE Annex1: Description of work – 2012-03-26



Realization of electrolyte with: (1)water content < 2% (Karl Fisher,
TG), (2) electrochemical windows between 2 to 4.3V versus Li.
(1) Realization of suitable additives of RTILs; (2) Electrolyte has
viscosity of (1- 6 mPas), and O2 solubility of (2-12mg/L).
Realization of optimum electrolytes with thermal stability of -40°110°and ion conductivities (2-11mS/cm).
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Milestones Information available from
page 6 to 51 of Annex I
Milestone number: 3
Milestone name: MS7, MS8, MS9
Lead beneficiary: LEITAT
Delivery date: M12, M24, M32
Organization proposed



MS7 - Realization of electrolyte with: (1)water content < 2% (Karl
Fisher, TG), (2) electrochemical windows between 2 to 4.3V versus
Li. (3) Physical characteristic: viscosity of (1- 6 mPas), ion
conductivities (2-11mS/cm), purity (IC )
MS8 - (1) Realization of suitable additives of RTILs; (2) Electrolyte
has viscosity of (1- 6 mPas), and O2 solubility of (2-12mg/L). (3) Up
scaling mL  100 mL
MS9 (1) Realization of optimum electrolytes with thermal stability of
-40°-110°and ion conductivities (2-11mS/cm).
(2) Up scaling 100mL  ½ L
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Proposed deadlines
M6/7 – March / April:
Exchange of samples
Poltio (solvent melts) <-> SAU (Additives)<-> Leitat (RTILs)
M9 - June:
Transfert of samples
Poltio, SAU, Leitat  CEG, LUREDERRA
M9 - June:
Input Elaphe, Material and production techniques analysis (up
scaling ?)  All
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Thank you for your attention
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Synthesis and optimization of electrolyte of Li-air cells
Designation
Glove box
IC
Potentiostat /
Galvanostat
TGA
DSC
FTIR
Conductimeter

Leitat Toolbox
Karl Fisher
Viscosimeter
Utility
Rate of O2 and H2O > 0.1 ppm
1) Preparation of the electrolyte (i.e. salt of lithium+ solvent.)
2) Assembly of the electrochemical cell
3) Electrochemical test inside the glove box (Electrolyte electrochemical
Windows)
Ionic Chromatography
Cl-, BF4-, TFSI-, TFO-, PF6-, NO3-, CH3COO-, NH3-…
(detection limit = 0,1 ppm – 10 ppm)
Equipment
Glove Box UNILAB (4 gloves)
High precision for the determination of the water content.
10 – 1000 µg, ± 3 µg
2 potentiostat / galvanostat are available for testing, (1) electrolyte
(conductivity, O2 reduction, potentials windows) and (2) complete cell in a
Swagelok system where the purity and gas pressure could be controlled.
Coulometer KF 831
Dionnex ics 300
Sample charger As-DV
VMP3
Autolab
Thermal Gravimetric Analyze
TGA Q500
Conventional method for determining the temperature of the degradation
of the solvent and the water content.
Differential Scanning Calorimeter
DSC Q20
Conventional method for determining the physical properties of the solvent
(melting, freezing points…)
Fourier Transform InfraRed spectrophotometer
IRAffinity-1
Conventional method for determining the nature of the different bonds.
Conventional method for determining the conductivity of the solvent and
electrolyte. Possibility for checking the conductivity at different
temperature.
Conventional method for determining the viscosity of the solvent and
electrolyte. Possibility for checking the viscosity at different temperature.
STABLE Kick-off meeting
Torino – October 25th- 26th ,2012
Ec-Meter Basic 30+
Titanium cell for viscous liquid and Platinum cell
for conventional liquid.
Brookfield LV
DV-E Vicometer
LV spindle set (from 61 to 64)