Issue 53, 2020

Porous lithium cobalt oxide fabricated from metal–organic frameworks as a high-rate cathode for lithium-ion batteries

Abstract

Porous materials have many applications, such as energy storage, as catalysts and adsorption etc. Nevertheless, facile synthesis of porous materials remains a challenge. In this work, porous lithium cobalt oxide (LiCoO2) is fabricated directly from Co-based metal–organic frameworks (MOFs, ZIF-67) and lithium salt via a facile solid state annealing approach. The temperature affect on the microstructure of LiCoO2 is also investigated. The as-prepared LiCoO2 shows a uniform porous structure. As a cathode for a lithium-ion battery (LIB), the LiCoO2 delivers excellent stability and superior rate capability. The as-prepared porous LiCoO2 delivers a reversible capacity of 106.5 mA h g−1 at 2C and with stable capacity retention of 96.4% even after 100 cycles. This work may provide an alternative pathway for the preparation of porous materials with broader applications.

Graphical abstract: Porous lithium cobalt oxide fabricated from metal–organic frameworks as a high-rate cathode for lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
27 Jun 2020
Accepted
16 Aug 2020
First published
28 Aug 2020
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2020,10, 31889-31893

Porous lithium cobalt oxide fabricated from metal–organic frameworks as a high-rate cathode for lithium-ion batteries

H. Wei, Y. Tian, Y. An, J. Feng, S. Xiong and Y. Qian, RSC Adv., 2020, 10, 31889 DOI: 10.1039/D0RA05615D

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