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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Reversible lithium storage in a porphyrin-based MOF (PCN-600) with exceptionally high capacity and stability
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Reversible lithium storage in a porphyrin-based MOF (PCN-600) with exceptionally high capacity and stability

机译:基于卟啉的MOF(PCN-600)的可逆锂储存,具有极高的容量和稳定性

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摘要

An iron porphyrin-based metal organic framework (namely PCN-600) is firstly used as an anodic electrode for lithium ion batteries (LIBs) with an extraordinary combination of capacity, rate capability, and cycling stability. The PCN-600 electrode delivers a reversible specific capacity as high as similar to 1300 mA h g(-1) at a current density of 0.4 A g(-1), and the capacity is maintained at 610 mA h g(-1) even when cycling at high current densities 760 times, which reaches a record value amongst the presented MOF electrode materials. At the same time, the presence of porphyrin ligands is beneficial for the transport of lithium ions and electrons, which will boost the rate performance of the PCN-600 electrode.
机译:首先用作锂离子电池(LIBS)的铁卟啉基金属有机框架(即PCN-600),具有特殊的容量,速率能力和循环稳定性。 PCN-600电极以0.4Ag(-1)的电流密度高达可逆的特定容量,其电流密度为0.4Ag(-1),并且即使在610 mA Hg(-1)时也会保持容量 在高电流密度下循环760次,该速度达到所呈现的MOF电极材料中的记录值。 同时,卟啉配体的存在有利于锂离子和电子的运输,这将提高PCN-600电极的速率性能。

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