Fused Donor–Donor–Acceptor Triads Composed of Tetrathiafulvalene and Benzoquinone Derivatives as the Positive Electrode Materials for Rechargeable Lithium and Sodium Batteries

Abstract

Fused donor–donor–acceptor triads composed of tetrathiafulvalenes (TTFs) and benzoquinone (BQ) or naphthoquinone (NQ) were synthesized. The bis(methylsulfanyl)-TTFs-BQ and TTFs-NQ serve as a positive electrode active material for the rechargeable lithium battery with an energy density of over 800 mW h g−1. The bis(methylsulfanyl)-TTFs-NQ also functions as an active material for the rechargeable sodium battery.