Lithium iron phosphate (LiFePO4) is a very attractive material because of its features such as high thermal stability and environmentally-friendliness. The large size prototype cells with capacity of 50 Ah were fabricated using LiFePCVgraphite chemistry to evaluate durability performance. From the results of longterm tests over 2 years, it has turned out that the LiFePO4/graphite chemistry meets the requirements of life performance of BEV/PHEV applications. 20 Ah prismatic Al-housing cells with LiFePO4/graphite chemistry have been developed based on these experiences. The developed cells are able to supply the stable output-power more than 1100 W / kg over wide range of 10 to 90% SOC. In addition, the cells exhibit the higher acceptability to be charged over 90% SOC within 30 minutes at 25 °C. Furthermore, it was found that the cells showed the superior safety of EUCAR hazard level 3 on the crush and overcharge tests. From these results, the 20 Ah cells are promising for BEV/PHEV applications.


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    Titel :

    Development of the high performance LiFePO4 cell for BEV/PHEV application


    Beteiligte:
    Nakamoto, Takeshi (Autor:in) / Suzuki, Isao (Autor:in) / Mochizuki, Tomotada (Autor:in) / Funabiki, Atsushi (Autor:in) / Suzuki, Takashi (Autor:in) / Uebo, Yasushi (Autor:in)

    Erschienen in:

    Erscheinungsdatum :

    2012


    Format / Umfang :

    6 Seiten, 12 Bilder, 2 Tabellen, 3 Quellen



    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




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