A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries

Gu, Shuai1,2; Hao, Rui1; Chen, Jingjing1; Chen, Xi2; Liu, Kun1; Hussain, Iftikhar2; Liu, Guiyu1; Wang, Zhiqiang1; Gan, Qingmeng1; Guo, Hao1; Li, Muqing1; Zhang, Kaili2; Lu, Zhouguang1

2022-07-01

10.1039/d2qm00578f

MATERIALS CHEMISTRY FRONTIERS   影响因子和分区

2052-1537

Covalent organic frameworks are promising electrode materials for energy storage due to their uniform active sites, abundant pores, and high stability. However, the reported COF electrodes often display low discharge voltage, which limits their further applications. In this work, N,N,N,N-tetraphenylphenylenediamine (TPPDA) units were used to construct a novel polyimide COF, which exhibited a unique star-shaped structure. The COF material was used as the positive electrode for lithium-ion batteries and displayed a high discharge voltage up to 3.6 V, higher than those of almost all the COF electrode materials. The TPPDA units were demonstrated as redox active sites and exhibited two-electron redox processes, which exhibited the redox of TPPDA radical cations and the insertion/extraction of PF6- anions. This work offers a new strategy to design novel COF materials and develop high-voltage organic electrodes for energy storage.

SCI ; EI

英语

第一 ; 通讯

Basic Research Project of the Science and Technology Innovation Commission of Shenzhen[JCYJ20200109141640095] ; Shenzhen Key Laboratory of Interfacial Science and Engineering of Materials[ZDSYS20200421111401738] ; Leading Talents of Guangdong Province Program[2016LJ06C536] ; Guangdong-Hong Kong-Macao Joint Laboratory[2019B121205001] ; National Natural Science Foundation of China[21875097] ; Hong Kong Research Grants Council[CityU 11218420]

Chemistry ; Materials Science

Chemistry, Multidisciplinary ; Materials Science, Multidisciplinary

WOS:000834512200001

ROYAL SOC CHEMISTRY

20223212550311

Electric discharges ; Electrodes ; Energy storage ; Ions ; Polyimides ; Redox reactions ; Stars

Energy Storage:525.7 ; Extraterrestrial Physics and Stellar Phenomena:657.2 ; Electricity: Basic Concepts and Phenomena:701.1 ; Chemical Reactions:802.2 ; Organic Polymers:815.1.1

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen Key Lab Interfacial Sci & Engn Mat, Guangdong Hong Kong Macao Joint Lab Photon Therma, Shenzhen 518055, Guangdong, Peoples R China
2.City Univ Hong Kong, Dept Mech Engn, Kowloon, Hong Kong 999077, Peoples R China

Gu, Shuai,Hao, Rui,Chen, Jingjing,et al. A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries[J]. MATERIALS CHEMISTRY FRONTIERS,2022,6:2545-2550.

Gu, Shuai.,Hao, Rui.,Chen, Jingjing.,Chen, Xi.,Liu, Kun.,...&Lu, Zhouguang.(2022).A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries.MATERIALS CHEMISTRY FRONTIERS,6,2545-2550.

Gu, Shuai,et al."A star-shaped polyimide covalent organic framework for high-voltage lithium-ion batteries".MATERIALS CHEMISTRY FRONTIERS 6(2022):2545-2550.