Electron-deficient anthraquinone derivatives as cathodic material for lithium ion batteries

Takashi Takeda, Ryosuke Taniki, Asuna Masuda, Itaru Honma, Tomoyuki Akutagawa

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)

Abstract

We studied the electronic and structural properties of electron-deficient anthraquinone (AQ) derivatives, Me4N4AQ and TCNAQ, and investigated their charge-discharge properties in lithium ion batteries along with those of AQ. Cyclic voltammogram, X-ray structure analysis and theoretical calculations revealed that these three acceptors have different features, such as different electron-accepting properties with different reduction processes and lithium coordination abilities, and different packing arrangements with different intermolecular interactions. These differences greatly affect the charge-discharge properties of lithium ion batteries that use these compounds as cathode materials. Among these compounds, Me4N4AQ showed a high charge/discharge voltage (2.9–2.5 V) with high cyclability (>65% of the theoretical capacity after 30 cycles; no decrease after 15 cycles). These results provide insight into more in-depth design principles for lithium ion batteries using AQ derivatives as cathodic materials.

Original languageEnglish
Pages (from-to)228-234
Number of pages7
JournalJournal of Power Sources
Volume328
DOIs
Publication statusPublished - 2016 Oct 1

Keywords

  • Anthraquinone
  • Electron acceptor
  • Lithium coordination
  • Lithium-ion batteries
  • Structure-properties relationship

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Energy Engineering and Power Technology
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

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