Figure 6: Analysis of the unpaired electron during the electrochemical process.
From: Highly durable organic electrode for sodium-ion batteries via a stabilized α-C radical intermediate
(a) CW-EPR for TSAQ at different discharge/charge states. Red (discharge to 1.0 V), olive (discharge to 0.5 V), blue (discharge to 0.05 V), magenta (recharge to 1.5 V) and violet (fully recharge to 3 V); (b) Solid-state CW-EPR analysis of TSAQ at 0.05 V (blue) and solution state CW-EPR analysis of the same materials after 100 cycles at 100 mA g−1 (insert, red). The electrode was dissolved by toluene for CW-EPR spectrum collection at 190 K.
