Lithium-alloy/metal sulfide batteries have been under development at Argonne National Laboratory since 1972. ANL's technology employs a two-phase Li alloy negative electrode, low-melting point LiCl-rich LiCl-LiBr-KBr molten salt electrolyte, and either an FeS or an upper-plateau (UP) FeS2 positive electrode. These components are assembled in an 'electrolyte-starved' bipolar cell configuration. Use of the multi-phase Li alloy (( alpha + beta )Li-Al and Li5AlFe2) negative electrode provides in situ overcharge tolerance that renders the bipolar design viable. Employing LiCl-rich LiCl-LiBr-KBr electrolyte in 'electrolyte-starved' cells achieves low-burdened cells that possess low area-specific impedance, comparable with that of flooded cells using LiCl-LiBr-KBr eutectic electrolyte. The combination of dense UP FeS2 electrodes and low-melting electrolyte produces a stable and reversible couple, achieving over 1000 cycles in flooded cells, with high power capabilities. In addition, a new class of stable chalcogenide ceramic/sealant materials was developed. These materials produce high-strength bonds between a variety of metals and ceramics, which make fabrication of lithium/iron sulfide bipolar stacks practical. Bipolar Li-Al/FeS and Li-Al/FeS2 cells and four-cell stacks using these seals have been built and tested for electric vehicle (EV) applications. They are projected to meet or exceed the performance requirements for a large variety of EV and HV applications.


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    Title :

    Lithium-aluminum/iron sulfide batteries


    Additional title:

    Li-Al/Fe-Sulfid-Batterie


    Contributors:

    Published in:

    Journal of Power Sources ; 51 , 1-2 ; 115-128


    Publication date :

    1994


    Size :

    14 Seiten, 23 Quellen




    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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    Lithium-aluminum/metal sulfide batteries

    STEUNENBERG, R. | AIAA | 1977


    Lithium-Iron Sulfide Batteries for Electric Vehicles

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