1 research outputs found
High-Energy and Long-Lasting Organic Electrode for a Rechargeable Aqueous Battery
Redox-active
organic materials (ROMs) hold great promise as potential
electrode materials for eco-friendly, cost-effective, and sustainable
batteries; however, the poor cycle stability arising from the chronic
dissolution issue of the ROMs in generic battery systems has impeded
their practical employment. Herein, we present that a rational selection
of electrolytes considering the solubility tendency can unlock the
hidden full redox capability of the DMPZ electrode (i.e., 5,10-dihydro-5,10-dimethylphenazine)
with unprecedentedly high reversibility. It is demonstrated that a
multiredox activity of DMPZ/DMPZ+/DMPZ2+, which
has been previously regarded to degrade with repeated cycles, in the
newly designed electrolyte can be utilized with surprisingly robust
cycle stability over 1000 cycles at 1C. This work signifies that tailoring
the electrode–electrolyte compatibility can possibly unleash
the hidden potential of many common ROMs, catalyzing the rediscovery
of organic electrodes with long-lasting and high energy density