Zwitterionic covalent organic framework as a multifunctional sulfur host toward durable lithium-sulfur batteries

Lu Han; Yixuan Li; Yanqin Yang; Shuzheng Sun; Mingkai Li; Junbo Yue; Chong Yang Chuah; Jingde Li

doi:10.1016/j.jcis.2022.07.123

Zwitterionic covalent organic framework as a multifunctional sulfur host toward durable lithium-sulfur batteries

J Colloid Interface Sci. 2022 Dec 15;628(Pt A):144-153. doi: 10.1016/j.jcis.2022.07.123. Epub 2022 Jul 22.

Authors

Lu Han¹, Yixuan Li¹, Yanqin Yang², Shuzheng Sun¹, Mingkai Li¹, Junbo Yue¹, Chong Yang Chuah³, Jingde Li⁴

Affiliations

¹ National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, No. 8, Guangrong Road, Tianjin 300130, China.
² National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, No. 8, Guangrong Road, Tianjin 300130, China. Electronic address: yangyanqin@hebut.edu.cn.
³ Department of Chemical Engineering, Universiti Teknologi Petronas, Bandar Seri Iskandar, 32610 Perak, Malaysia; CO(2) Research Centre (CO2RES), Institute of Contaminant Management, Universiti Teknologi Petronas, Bandar Seri Iskandar, 32610 Perak, Malaysia.
⁴ National-Local Joint Engineering Laboratory for Energy Conservation in Chemical Process Integration and Resources Utilization, School of Chemical Engineering and Technology, Hebei University of Technology, No. 8, Guangrong Road, Tianjin 300130, China. Electronic address: jingdeli@hebut.edu.cn.

PMID: 35914425
DOI: 10.1016/j.jcis.2022.07.123

Abstract

The shuttle effect and slow redox kinetics of sulfur cathode are the most significant technical challenges to the practical application of lithium-sulfur (Li-S) battery. Herein, a novel zwitterionic covalent organic framework (ZW-COF) wrapped onto carbon nanotubes (CNTs), labeled as ZW-COF@CNT, is developed by a reversible condensation reaction of 1,3,5-benzenetricarboxaldehyde (BTA) and 3,8-diamino-6-phenylphenanthridine (DPPD) with CNTs as a template and a subsequently-one-step post-synthetic grafting reaction with 1,3-propanesultone. The experimental results showed that, after loading active material sulfur, zwitterionic ZW-COF@CNT can effectively suppress the shuttle effect of the soluble lithium polysulfides (LiPSs) in Li-S batteries, and exhibits better cycling behavior than the as-developed neutral COF@CNT. Specifically, the as-obtained ZW-COF@CNT based sulfur cathode can maintain a discharge capacity of 944 mAh/g after 100 cycles, while that of COF@CNT based sulfur cathode drops to (665 mAh/g) after 100 cycles. Moreover, the ZW-COF@CNT based sulfur cathode delivers an attractive prolonged cycling behavior with a low capacity decay rate of 0.046 % per cycle at 1 C. This work sheds new light on rational selection and design of functionalized COFs based sulfur cathode in the Li-S battery.

Keywords: Covalent organic framework; Lithium-sulfur battery; Shuttle effect; Zwitterion.