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Best Practices for Mitigating Irreversible Capacity Loss of Negative Electrodes in Li-Ion Batteries

机译：减轻锂离子电池中负极不可逆容量损失的最佳实践

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Development of high performance lithium-ion (Li-ion) power packs is a topic receiving significant attention in research today. Future development of the Li-ion power packs relies on the development of high capacity and high rate anodes. More specifically, materials undergo either conversion or an alloying mechanism with Li. However, irreversible capacity loss (ICL) is one of the prime issues for this type of negative electrode. Traditional insertion-type materials also experience ICL, but it is considered negligible. Therefore, eliminating ICL is crucial before the fabrication of practical Li-ion cells with conventional cathodes such as LiFePO4, LiMn2O4, etc. There are numerous methods for eliminating ICL such as pre-treating the electrode, usage of stabilized Li metal powder, chemical and electrochemical lithiation, sacrificial salts for both anode and cathode, etc. The research strategies that have been explored are reviewed here in regards to the elimination of ICL from the high capacity anodes as described. Additionally, mitigating ICL observed from the carbonaceous anodes is discussed and compared.
机译：高性能锂离子（Li-ion）电源组的开发是当今研究中非常关注的一个话题。锂离子电池组的未来发展取决于高容量和高倍率阳极的发展。更具体地，材料经历转化或与Li的合金化机理。但是，不可逆容量损失（ICL）是此类负极的主要问题之一。传统的插入式材料也经历了ICL，但被认为可以忽略不计。因此，在制造带有常规阴极（如LiFePO4，LiMn2O4等）的实际锂离子电池之前，消除ICL是至关重要的。有许多消除ICL的方法，例如对电极进行预处理，使用稳定的锂金属粉末，化学药品和电化学锂化，阳极和阴极的牺牲盐等。在此，对从如上所述的高容量阳极中消除ICL的研究策略进行了综述。另外，讨论并比较了从碳质阳极观察到的缓解ICL。

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