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    Stress-strain relationships of LixSn alloys for lithium ion batteries

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    Fulltext not available
    Authors
    Gao, X.
    Ma, Z.
    Jiang, W.
    Zhang, P.
    Wang, Y.
    Pan, Y.
    Lu, Chunsheng
    Date
    2016
    Type
    Journal Article
    
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    Citation
    Gao, X. and Ma, Z. and Jiang, W. and Zhang, P. and Wang, Y. and Pan, Y. and Lu, C. 2016. Stress-strain relationships of LixSn alloys for lithium ion batteries. Journal of Power Sources. 311: pp. 21-28.
    Source Title
    Journal of Power Sources
    DOI
    10.1016/j.jpowsour.2016.02.024
    ISSN
    0378-7753
    School
    Department of Mechanical Engineering
    URI
    http://hdl.handle.net/20.500.11937/7446
    Collection
    • Curtin Research Publications
    Abstract

    Tin with a theoretical capacity of 993 mAh g−1 is considered as a promising anode material for lithium ion batteries (LIBs). However, under the intercalated-Li+ state, large volume deformation in tin active materials may result in cracks and flakes that seriously affect the cycle stability of LIBs. In this paper, the indentation load-displacement behaviors of LixSn (0 ≤ x ≤ 4.4) alloys with various charge states are tested to determine their hardness, elastic modulus, yield strength and hardening exponent. In conjunction with finite element modeling and dimensional analysis, the stress–strain relationships of LixSn alloys are obtained by using a power-law hardening model. Furthermore, the evolution of stress–strain relationships is investigated as the change of charge states.

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