Wei H, Tian Y, An Y, Feng J, Xiong S, Qian Y. Porous lithium cobalt oxide fabricated from metal-organic frameworks as a high-rate cathode for lithium-ion batteries.
RSC Adv 2020;
10:31889-31893. [PMID:
35518155 PMCID:
PMC9056570 DOI:
10.1039/d0ra05615d]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Accepted: 08/16/2020] [Indexed: 01/07/2023] Open
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.
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