Thin-film rechargeable Li-LiMn2O4 batteries have been fabricated and characterized. Following deposition by electron beam evaporation of LiMn2O4, the amorphous as-deposited cathode films 1 cm2 in area by 0.3to 4-μm thick were annealed at 700/spl deg/C to 800/spl deg/C in oxygen in order to form the crystalline spinet phase. The specific capacity of the cells between 4.5 V to 3.8 V ranged from 50 μAh/mg to 120 μAh/mg. When cycled over this range, the batteries exhibited excellent secondary performance with capacity losses as low as 0.001% per cycle. On charging to 5.3 V, a plateau with a median voltage of 5.1 V was observed. The total charge extracted between 3.8 V to 5.3 V corresponded to about 1 Li/Mn2O4.


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    Titel :

    Thin-film Li-LiMn2O4 batteries


    Beteiligte:
    Bates, J.B. (Autor:in) / Lubben, D. (Autor:in) / Dudney, N.J. (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    1995-04-01


    Format / Umfang :

    252440 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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