Lithium metal storage in zeolitic imidazolate framework derived nanoarchitectures
Lithium metal storage in zeolitic imidazolate framework derived nanoarchitectures
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DOI：
10.1016/j.ensm.2020.07.015
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发表时间：
2020-12-01
影响因子：
20.4
通讯作者：
Kim, Jung Ho
中科院分区：
文献类型：
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作者：
Hyeon, Yuhwan;Lee, Jaewoo;Kim, Jung Ho
由于对具有更高能量密度的能量存储装置的需求不断增加，锂（Li）金属被认为是作为阳极材料的最终选择，因为它在所有碱金属中具有高的理论容量（3860 mAh g（-1））和最低的还原电位（相对于标准氢电极为-3.04V）。尽管有这些优点，但在电池操作期间重复的Li镀覆/剥离导致树枝状Li和不可逆Li（死Li）的形成，从而导致内部短路和容量衰减。这些基本问题导致安全问题和电池故障，因此必须解决这些问题以使锂金属阳极商业化。许多深入的研究正在进行中，以通过各种方法解决这些缺点，例如形成人工固体电解质界面（SEI），在电解质和电极之间插入界面层，展示三维结构化电极，以及使用稳定的主体结构来存储Li-金属。在这篇综述中，我们重点介绍了在各种策略中使用基质材料来存储锂金属，这可能被视为一种替代方法，但非常可行。此外，我们建议多孔碳材料衍生自沸石咪唑骨架（ZIF）作为主体材料，由于其合适的性能锂金属存储。为了推进实际应用的进展，多孔材料的锂金属存储容量的数学推导，并讨论了进一步的策略，以提高这方面的存储容量。最后，我们提出了一个前景，铺平了道路，主体材料的实际锂金属电池的阳极。
Due to the increasing demands for energy storage devices with higher energy density, lithium (Li) metal is considered to be the ultimate choice as an anode material because it has a high theoretical capacity (3860 mAh g(-1)) and the lowest reduction potential (-3.04 V versus standard hydrogen electrode) among all the alkali metals. Despite these advantages, repeated Li plating/stripping during cell operation leads to dendritic Li and the formation of irreversible Li (dead Li), leading to internal short-circuits and capacity fading. These fundamental problems cause safety issues and cell failure, so they must be resolved to commercialize Li-metal anode. Many indepth studies are ongoing to solve these drawbacks through a variety of approaches, such as the formation of artificial solid-electrolyte interphase (SEI), inserting an interfacial layer between the electrolyte and electrode, demonstrating three-dimensional structured electrodes, and using stable host structures to store Li-metal. In this Review, we focus on using host materials to store Li-metal among various strategies, which may be regarded as an alternative method but is very feasible. Also, we propose porous carbon materials derived from zeolitic imidazolate frameworks (ZIFs) as the host materials due to their suitable properties for Li-metal storage. To advance progress towards practical application, the Li-metal storage capacity of porous materials is mathematically inferred, and further strategies are discussed for improving the storage capacity in this regard. Finally, we presented a perspective that paves the way for applying host materials to anodes of practical Li-metal battery.