Parameter analysis of a practical lithium- and sodium-air electric vehicle battery

E. Peled*, D. Golodnitsky, H. Mazor, M. Goor, S. Avshalomov

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

145 Scopus citations

Abstract

For electric vehicles (EV) having a 500 km range between charges, there is a need to develop smaller and lower-cost batteries. Lithium-air has the potential to deliver a step change in the specific energy of rechargeable lithium batteries. In order to develop a practical, safe, smaller and lower-cost lithium and sodium-air rechargeable EV battery it is necessary to eliminate the formation of dendritic deposits (on charge), increase the current density up to 100 mA cm-2 (or reducing cell DC resistance to less than 10 Ω cm2) and change the oxygen-discharge product from peroxide to oxide. We suggest here a novel concept, namely to replace the metallic lithium anode by liquid sodium and to operate the sodium-oxygen cell above the sodium melting point (97.8 °C). In this report we studied the deposition-dissolution process of sodium in polymer electrolytes at 105 °C and we present, for the first time, preliminary results that demonstrate the feasibility of running a liquid-sodium-oxygen cell with polymer electrolytes at above 100 °C.

Original languageEnglish
Pages (from-to)6835-6840
Number of pages6
JournalJournal of Power Sources
Volume196
Issue number16
DOIs
StatePublished - 15 Aug 2011

Keywords

  • Air
  • Lithium
  • Rechargeable battery
  • Sodium
  • Temperature

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