PUECH, Laurent; CANTAU, Christophe; VINATIER, Philippe; TOUSSAINT, Gwenaëlle; STEVENS, Philippe

doi:10.1016/j.jpowsour.2012.04.064

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PUECH, Laurent
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

CANTAU, Christophe
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

VINATIER, Philippe
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]

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Ce document a été publié dans

Journal of Power Sources. 2012, vol. 214, p. 330-336

Elsevier

Résumé en anglais

In order to develop a LISICON separator for an aqueouslithium-airbattery, a thin membrane was prepared by a tape-casting of a Li1.3Al0.3Ti1.7 (PO4)3-AlPO4 based slip followed by a sintering step. By optimizing the grain sizes, the slip composition and the sintering treatment, the mechanical properties were improved and the membrane was reduced to a thickness of down to 40 μm. As a result, the ionic resistance is relatively low, around 38 Ω for a 55 μm membrane of 1 cm2. One side of the membrane was coated with alithium oxynitrured phosphorous (LiPON) thin film to prevent lithium metal attack. Lithium metal was electrochemically deposited on the LiPON surface from a saturated aqueous solution of LiOH. However, the ionic resistance of the LiPON film, around 67 Ω for a 1.2 μm film of 1 cm2, still causes an important ohmic loss contribution which limits the power performance of a lithium-air battery.< Réduire

Mots clés en anglais

Metal-airbattery

Lithium anode

Li2O-Al2O3-TiO2-P2O5 system

LiPON

Solid electrolyte

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Elaboration and characterization of a free standing LiSICON membrane for aqueous lithium-air battery

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