EL PARTNER TECNOLÓGICO

STABLE – Reference Li-air cell

2

Outline

- Cell configuration (general)

- Li-Anode (WP1)

- Separator (WP1)

- Air-cathode material (WP2)

- Electrolyte

- Characterization

33

Reference conditions

Gas TypeCell

CollectorAnode Anode Membrane Collecteur

Cathode Cathode

O2(99,99998%) Swagelok

Copper Rod(or copper

foam)Lithium

chipsWahtman

GF/A

Alluminium (Al) tube(or stainless steel)

+ SS spring+ component melt by spot

resistance

Al tube(or SS tube)

Air Coin Cell StainlessSteel (SS)

Lithium

chipsWahtman

GF/A

SS mesh+ SS spring

+ component melt by spot resistance

SS mesh

Electrolyte

Organic RTILSolvent Salt Solvent Salt

EC/DEC LiPF6 EMITFSI LiTFSI

NB1: This is not only a blibliographic research. Theses configurations are used at the momentNB2: Pouch cell is the step farther

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Cell configuration

Swagelok cell (O2)Name: PFA Swagelok tube fitting ½ inch

Reference: PFA-820-6Web link: http://www.swagelok.com/search/find_products_home.aspx?part=PFA-820-6&item=2b451130-c169-4f69-bac4-8bfa338a165b#

Active surface area: 10 mm-diameter

Current collector: Anode: Copper rodCathode: 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-MESWeb link: http://mtixtl.com/MeshedCR2032CoinCellsCases20dx3.2mmforZinc/LithiumAirBatteryR.aspx

Active surface area: 14 mm-diameter

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Air-cathode materials

Current collector:

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

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)

Diameter for Swagelok cell: 10 mm

Diameter for coin cell: 14 mm

Composition ref.

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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…)

Contacts melt by spot resitance

Gas in

Gas out

Vale for charge /discharge

Battery

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Anode materials

Active material: Lithium (CAS: 7439-93-2)

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

Diameter for Swagelok cell: 12 mm

Diameter for coin cell: 14 mm

Copper foam for nanostructuration (lithium eletrodepositon), disc of 12 mm taken fromGood fellow (LS396347), 6.35 mm, 0.85/cm2, 99.9%,16 Pores/cm, 150 x 150 mm, 120g.

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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

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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 ??

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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.

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Leitat team

Contact Division Position Tasks

David Amantia, PhD.damantia@leitat.org Nano Material

External coordinator (STABLE)Team leaderCo-leader STABLE (LEITAT)

Coordination External/InternalMaterials

Christophe Aucher, PhD.caucher@leitat.org Renewable Energy Researcher

Co-leader STABLE (LEITAT)Co-Coordination InternalElectrochemistry

Albert Almarza, engineeraalmarza@leitat.org Nano Material Researcher Material

Étienne Knipping, engineerKetienne@leitat.org Renewable Energy Researcher Electrochemistry

José A. Sáez, PhD.jasaez@leitat.org Smart System Team leader Modeling / Simulation