由金属有机骨架模板制备的用于锂离子电池阳极的具有长循环寿命的 CuO/Cu2O 复合中空多面体。

CuO/Cu2O composite hollow polyhedrons fabricated from metal-organic framework templates for lithium-ion battery anodes with a long cycling life.

机构信息

High Magnetic Field Laboratory, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, PR China.

出版信息

Nanoscale. 2013 May 21;5(10):4186-90. doi: 10.1039/c3nr00623a.

DOI:10.1039/c3nr00623a

PMID:23584557

Abstract

Novel CuO/Cu2O hollow polyhedrons with porous shells were fabricated by thermal decomposition of coordination compound [Cu3(btc)2]n (btc = benzene-1,3,5-tricarboxylate) polyhedrons at 350 °C. When tested as anode materials for lithium-ion batteries, these hollow polyhedrons exhibited a reversible lithium storage capacity as high as 740 mA h g(-1) at 100 mA g(-1) after 250 cycles even if the charge-discharge process is stopped for one week during the test time.

摘要

通过在 350°C 下分解配位化合物[Cu3(btc)2]n（btc = 苯-1,3,5-三羧酸酯）多面体，制备了具有多孔壳的新型 CuO/Cu2O 中空多面体。当用作锂离子电池的阳极材料时，这些中空多面体在 250 次循环后，即使在测试期间停止充电-放电过程一周，在 100 mA g(-1)的电流密度下，仍具有高达 740 mA h g(-1)的可逆锂存储容量。