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Lithium sulfur batteries, a mechanistic review

机译：锂硫电池，机械审查

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摘要

Lithium sulfur (Li-S) batteries are one of the most promising next generation battery chemistries with potential to achieve 500-600 W h kg(-1) in the next few years. Yet understanding the underlying mechanisms of operation remains a major obstacle to their continued improvement. From a review of a range of analytical studies and physical models, it is clear that experimental understanding is well ahead of state-of-the-art models. Yet this understanding is still hindered by the limitations of available techniques and the implications of experiment and cell design on the mechanism. The mechanisms at the core of physical models for Li-S cells are overly simplistic compared to the latest thinking based upon experimental results, but creating more complicated models will be difficult, due to the lack of and inability to easily measure the necessary parameters. Despite this, there are significant opportunities to improve models with the latest experimentally derived mechanisms. Such models can inform materials research and lead to improved high fidelity models for controls and application engineers.
机译：锂硫（Li-S）电池是最有前途的下一代电池化学之一，在未来几年内有望达到500-600 W h kg（-1）。然而，了解基本的运行机制仍然是对其持续改进的主要障碍。通过对一系列分析研究和物理模型的回顾，很明显，对实验的理解远远领先于最新模型。然而，现有技术的局限性以及实验和细胞设计对该机制的影响仍然阻碍着这种理解。与基于实验结果的最新思维相比，Li-S电池物理模型的核心机制过于简单，但是由于缺乏并且无法轻松测量必要的参数，因此创建更复杂的模型将非常困难。尽管如此，使用最新的实验派生机制来改进模型还是有很大的机会。这样的模型可以为材料研究提供参考，并为控件和应用工程师提供改进的高保真模型。

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  • 来源
    《Energy & environmental science》 |2015年第12期|3477-3494|共18页
  • 作者

    Wild M.; ONeill L.; Zhang T.; Purkayastha R.; Minton G.; Marinescu M.; Offer G. J.;

  • 作者单位

    OXIS Energy Ltd, Abingdon OX14 3DB, Oxon, England;

    OXIS Energy Ltd, Abingdon OX14 3DB, Oxon, England;

    Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England;

    OXIS Energy Ltd, Abingdon OX14 3DB, Oxon, England;

    OXIS Energy Ltd, Abingdon OX14 3DB, Oxon, England;

    Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England;

    Univ London Imperial Coll Sci Technol & Med, Dept Mech Engn, London SW7 2AZ, England;

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