Reference

Report
EL PARTNER TECNOLÓGICO
STABLE – Reference Li-air cell
Outline
-Cell configuration (general)
-Li-Anode (WP1)
- Separator (WP1)
-Air-cathode material (WP2)
- Electrolyte
- Characterization
2
Reference conditions
Gas
Type
Cell
Collector
Anode
Collecteur
Cathode
Alluminium (Al) tube
(or stainless steel)
+ SS spring
+ component melt by spot
resistance
SS mesh
+ SS spring
+ component melt by spot
resistance
Anode Membrane
Copper Rod
O2
Lithium Wahtman
Swagelok (or copper
(99,99998%)
chips
GF/A
foam)
Air
Coin Cell
Stainless
Steel (SS)
Lithium Wahtman
chips
GF/A
Cathode
Al tube
(or SS tube)
SS mesh
Electrolyte
Organic
RTIL
Solvent
Salt
Solvent
Salt
EC/DEC
LiPF6
EMITFSI
LiTFSI
NB1: This is not only a blibliographic research. Theses configurations are used at the moment
NB2: Pouch cell is the step farther
3
Cell configuration
Name: PFA Swagelok tube fitting ½ inch
Swagelok cell (O2)
Reference: PFA-820-6
Web link: http://www.swagelok.com/search/find_products_home.aspx?part=PFA-8206&item=2b451130-c169-4f69-bac4-8bfa338a165b#
Active surface area: 10 mm-diameter
Current collector:
Anode: Copper rod
Cathode: Al or Stainless steal tube
Coin cell (Air)
Name: Meshed CR2032 Coin Cells Cases (20d x
3.2mm) for Lithium Air Battery Research (1 pair with
seal O-ring)
Reference: EQ-CR2032-CASE-304-MES
Web link:
http://mtixtl.com/MeshedCR2032CoinCellsCases20dx3.2mmforZinc/LithiumAirBatteryR.
aspx
Active surface area: 14 mm-diameter
4
Air-cathode materials
Current collector:
 Diameter for Swagelok cell: 10 mm
 Diameter for coin cell: 14 mm
304 Stainless Steel Meshed Disc (80 mesh woven
from 0.127 mm dia. Wire, Alfa Aesar)
as Electrode Substrate for CR2032 – EQ-SSMD-304
(MTI.Corp.)
http://mtixtl.com/304StainlessSteelMeshedDiscasElectrodeSubstrateforCR20XXCoinCell.aspx
Composition ref.
Active material: Graphite Super C65
(CAS: 1333-86-4 – TIMCAL)
Binder: PVDF ADX 161
(CAS: 24937-79-9 – Arkema)
Solvent for slurry preparation: N-methyl-2-pyrrolidone (CAS: 872-50-4 – Sigma
Aldrich, anhydrous, 99.5% - 328634)
5
Swagelok cell
Why is it the good choice.
-Everybody is using it, easier to compare to previous results
-Cheap and Versatile cell:
• Possibility to change each component one by one
• Possibility to tune (melting by spot resistance, 2 or 3 electrodes, line of several cells…)
Battery
Vale for
charge /discharge
Gas out
Gas in
Contacts
melt by spot
resitance
6
Anode materials
Active material: Lithium (CAS: 7439-93-2)
 Diameter for Swagelok cell: 12 mm
 Diameter for coin cell: 14 mm
Name: Lithium Chip 15.6 Diax0.25t mm for Li-ion Battery R&D
100g/bottle (4000 pcs)
Reference: EQ-Lib-LiC25
Web link: http://mtixtl.com/LithiumChip15.6Diax0.25tmmforLi-ionBatteryRandD125g/bottle-EQ-Lib.aspx
Name: Lithium ( Li ) Foil: 30000mm Length x 35 mm Width x
0.17mm Thick
Reference: Lib-LiF-30M
Web link: http://mtixtl.com/LithiumLiFoil30000mmLengthx35mmWidthx0.17mmThick.aspx
Copper foam for nanostructuration (lithium eletrodepositon),
disc of 12 mm taken from
Good fellow (LS396347), 6.35 mm, 0.85/cm2, 99.9%,
16 Pores/cm, 150 x 150 mm, 120g.
7
Electrolyte
Carbonate-based electrolyte
Solvent: EC/DEC (2/1 volume).. Working very well, better than DMC or PC mielts.
EC: Ethylene carbonate (CAS: 96-49-1 – Sigma Aldrich 676802)
DEC: Diethyl carbonate (CAS: 105-58-8 – Sigma Aldrich 517135)
Salt: LiPF6 – Lithium hexafluorophosphate (CAS: 21324-40-3 – Sigma Aldrich 450227)
Concentration: 1 mol/L
Ionic liquid electrolyte
EMIM TFSI – 1-Ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (CAS:
174899-82-2 – Sigma Aldrich 11291)
LiTFSI – Bis(trifluoromethane)sulfonimide lithium salt (CAS: 90076-65-6 – Sigma
Aldrich 544094)
Concentration: 1 mol/L
8
Separator
Name: Whatman® glass-fiber filter paper, Grade 25
Reference: Z132101-100EA
Web link: http://www.sigmaaldrich.com/catalog/product/aldrich/z132101?lang=es&region=ES
 Diameter for Swagelok cell: 10 mm
Diameter for coin cell: 16 mm
LISICON commercially available ??
9
Electrochemical characterization
 Method
- Galvanostatic charge /discharge, cycling:
Current: 50 to 1000 µA/cm2
Potential window: [2 V : 4 V]
-Impedance spectroscopy: ± 200 mV to EOC
 Gas
-Condition 1: O2 / Flow rate: 0.1 SCFH
(Premier or Ultrapuro Plus, < 5 or < 2 ppm of inpurities)
-Condition 2: Mediterranean Air atmosphere of Barcelona.
10
Leitat team
Contact
Division
Position
Tasks
David Amantia, PhD.
[email protected]
Nano Material
External coordinator (STABLE)
Team leader
Co-leader STABLE (LEITAT)
Coordination
External/Internal
Materials
Christophe Aucher, PhD.
[email protected]
Researcher
Renewable Energy
Co-leader STABLE (LEITAT)
Co-Coordination
Internal
Electrochemistry
Albert Almarza, engineer
[email protected]
Nano Material
Material
Étienne Knipping, engineer
[email protected]
Renewable Energy Researcher
Electrochemistry
José A. Sáez, PhD.
[email protected]
Smart System
Modeling / Simulation
Researcher
Team leader
11

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