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A Material Perspective of Rechargeable Metallic Lithium Anodes
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2018-02-14 , DOI: 10.1002/aenm.201702296 Bin Li 1 , Ying Wang 1 , Shubin Yang 1
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2018-02-14 , DOI: 10.1002/aenm.201702296 Bin Li 1 , Ying Wang 1 , Shubin Yang 1
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Rechargeable lithium‐based batteries are long considered as the most promising candidates for application in various electronic devices, electric vehicles, and even electrical grids owing to their ultrahigh energy densities. However, to date, metallic lithium‐based batteries are still far from practical applications due to the low Coulombic efficiency and fast capacity decay of lithium anodes. The poor electrochemical performances of metallic lithium anodes are inherently related to random growth of lithium dendrites and infinite volume charge of lithium anodes. In this review, the failure mechanisms of metallic lithium anodes are summarized and ascribed to the unstable and inhomogeneous solid electrolyte interphase, uneven distributions of electric field, and lithium‐ion flux during the lithium plating processes. Correspondingly, efficient strategies for mitigating these problems, including surficial engineering, electric field, and lithium‐ion flux regulation are discussed from the perspective of anode materials. Finally, an outlook is proposed for the design and fabrication of next‐generation rechargeable metallic lithium anodes that aims to address the intrinsic problems of metallic lithium anodes.
中文翻译：
可充电金属锂阳极的材料透视
长期以来，可充电锂电池由于具有超高的能量密度，一直被认为是在各种电子设备，电动汽车甚至电网中应用的最有希望的候选者。但是，迄今为止，由于库伦效率低和锂阳极的容量衰减快，金属锂基电池仍远未达到实际应用。金属锂阳极的不良电化学性能固有地与锂树枝状晶体的随机生长和锂阳极的无限体积电荷有关。本文对金属锂阳极的失效机理进行了总结，归因于固体电解质界面不稳定，不均匀，电场分布不均匀以及锂电镀过程中的锂离子通量。相应地，从阳极材料的角度讨论了缓解这些问题的有效策略，包括表面工程，电场和锂离子通量调节。最后，提出了设计和制造下一代可充电金属锂阳极的展望，旨在解决金属锂阳极的内在问题。
更新日期：2018-02-14
中文翻译：
可充电金属锂阳极的材料透视
长期以来，可充电锂电池由于具有超高的能量密度，一直被认为是在各种电子设备，电动汽车甚至电网中应用的最有希望的候选者。但是，迄今为止，由于库伦效率低和锂阳极的容量衰减快，金属锂基电池仍远未达到实际应用。金属锂阳极的不良电化学性能固有地与锂树枝状晶体的随机生长和锂阳极的无限体积电荷有关。本文对金属锂阳极的失效机理进行了总结，归因于固体电解质界面不稳定，不均匀，电场分布不均匀以及锂电镀过程中的锂离子通量。相应地，从阳极材料的角度讨论了缓解这些问题的有效策略，包括表面工程，电场和锂离子通量调节。最后，提出了设计和制造下一代可充电金属锂阳极的展望，旨在解决金属锂阳极的内在问题。
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