1. Model Predicts Carbon Components’ Performance as Electrodes

    Model Predicts Carbon Components’ Performance as Electrodes

    Researchers at the Lawrence Livermore National Laboratory and Rice University have created a theoretical model that predicts how carbon components will perform as anodes in lithium-ion batteries. The model is based on intrinsic electronic characteristics of materials used as battery anodes. These include the material’s quantum capacitance (the ability of the material to absorb charge) and the material’s absolute Fermi level, which determines how many lithium ions may bond to the electrodes.

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  1. Quotes

    1. The Fermi level of the electrode material is also important, The lower it is, the stronger lithium will bind.
    2. Generally speaking, a descriptor is an intermediate property or parameter that doesn't give you what you really want to know, but correlates well with the material's final performance.
    3. These allow us to quickly evaluate material performance without doing electrochemical tests or expensive computations.
    4. The fact that our descriptor predicts the performance of such a wide variety of materials is surprising.
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