A Naphthalene Diimide Covalent Organic Framework: Comparison of Cathode Performance in Lithium-Ion Batteries with Amorphous Cross-linked and Linear Analogues, and Its Use in Aqueous Lithium-Ion Batteries

Samik Jhulki, Cameron H. Feriante, Roman Mysyk, Austin M. Evans, Alexandre Magasinski, Ashwin Sankara Raman, Kostiantyn Turcheniuk, Stephen Barlow, William R. Dichtel, Gleb Yushin, Seth R. Marder*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We report a two-dimensional (2D) imine-linked covalent organic framework (COF) containing naphthalene diimide (NDI) redox groups, TAPB-NDI COF. Lithium-ion batteries (LIBs) with TAPB-NDI COF-based electrodes exhibited >95% of their theoretical capacity at a C/20 charge/discharge rate, among the highest faradaic efficiency of a NDI-COF electrode. The pores of TAPB-NDI COF are among the largest reported and presumably facilitate efficient Li+ ion transport. An amorphous cross-linked network (TAPB-NDI Amp) and a linear polymer (PD-NDI Lp) with similar chemical structures demonstrated lower capacities than the COF at C/20 current rate. However, PD-NDI Lp exhibited an overall higher gravimetric capacity and superior specific capacity retention at higher discharge rates compared to the TAPB-NDI COF. The COF is stable in neutral aqueous solutions, allowing its use as an electrode in neutral aqueous LIBs, which exhibited better rate performances than those in coin-cell set ups. Importantly, the cathodes did not suffer from a competitive hydrogen evolution reaction in aqueous LIBs. This opens up opportunities for using NDI moieties in neutral aqueous batteries and other energy-storage devices. Aqueous devices have been largely limited to "quinone-hydroquinone"-based redox couples, which are, however, operable only in acidic media.

Original languageEnglish (US)
Pages (from-to)350-356
Number of pages7
JournalACS Applied Energy Materials
Volume4
Issue number1
DOIs
StatePublished - Jan 25 2021

Keywords

  • Battery
  • Li-ion
  • covalent organic framework
  • naphthalene diimide
  • polymers

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Energy Engineering and Power Technology
  • Electrochemistry
  • Electrical and Electronic Engineering
  • Materials Chemistry

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