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Synthesis and optimization of electrolyte of Li-air cells

Synthesis and optimization of electrolyte of Li-air cells. STABLE kick-off meeting Torino - October 25 th - 26 th , 2012. David Amantia Christophe Aucher LEITAT. Summary. Overview Overall goals Workplan Deliverables Milestones.

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Synthesis and optimization of electrolyte of Li-air cells

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  1. Synthesis and optimization of electrolyte of Li-air cells STABLE kick-off meeting Torino - October 25th- 26th, 2012 David Amantia Christophe Aucher LEITAT

  2. Summary • Overview • Overall goals • Workplan • Deliverables • Milestones

  3. Overview Information available from page 6 to 51 of Annex I Start date or starting event: M1 End date: M32

  4. Summary • Overview • Overall goals • Workplan • Deliverables • Milestones

  5. 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.

  6. Summary • Overview • Overall goals • Workplan • Deliverables • Milestones

  7. WorkplanInformation 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 ↑

  8. WorkplanInformation 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)

  9. Summary • Overview • Overall goals • Workplan • Deliverables • Milestones

  10. DeliverablesInformation available from page 6 to 51 of Annex I

  11. Summary • Overview • Overall goals • Workplan • Deliverables • Milestones

  12. MilestonesInformation 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).

  13. MilestonesInformation 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

  14. 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

  15. Thank you for your attention

  16. Synthesis and optimization of electrolyte of Li-air cells • Leitat Toolbox

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