Abstract
Covalent organic frameworks (COFs) have attracted considerable attention as a facile and versatile design platform for advanced energy storage materials owing to their structural diversity, ordered porous structures, and chemical stability. In this study, a redox-active COF (TP–OH–COF) that can accommodate 30 Li+ ions is synthesized for potential use as an ultralong cyclable high-capacity lithium-ion battery electrode material. The TP–OH–COF is synthesized using triformylpholoroglucinol and 2,5-diaminohydroquinone dihydrochloride under solvothermal conditions. The accommodation of such exceptional Li+ ion content in the TP–OH–COF is achieved by alternately tethering redox-active hydroxyl and carbonyl sites on the pore walls. Owing to this unique chemical/structural feature, the TP–OH–COF delivers a high specific capacity of 764.1 mAh g–1, and capacity retention of 63% after 8000 cycles at a fast current density of 5.0 A g–1.
| Original language | English |
|---|---|
| Article number | 2108798 |
| Journal | Advanced Functional Materials |
| Volume | 32 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2022 Feb 23 |
Bibliographical note
Funding Information:L.Z. and G.L. contributed equally to this work. This work was supported by the National Natural Science Foundation of China (Grant No. 21671205, U1804126, 21771164, 52103277, and U1804129), Key Projects of Science and Technology of Henan Province (212102210208 and 212102210182), the Basic Science Research Program (2016R1A5A1009926, 2018M3D1A1058744 and 2021R1A2B5B03001615) through the National Research Foundation of Korea (NRF) grant by the Korean Government (MSIT) and Development of ICT Materials, Components and Equipment Technologies),Technology Innovation Program (20012216) funded by the Ministry of Trade, Industry & Energy (MOTIE, Korea).
Publisher Copyright:
© 2021 Wiley-VCH GmbH
All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics
