Research Information System
Organic Battery Days, Tokyo, Japan, 25 - 27 November 2021, pp.47
With the growing demands for green and sustainable energy storage
systems organic material can be used as alternatives due to their
abundance, low-cost, low-weight and environmentally friendly. Conducting
polymers (CP) have made a great impact on applications of modified
electrodes such as electrochromic, energy storage, electroanalysis, and
sensors due to their unique abilities such as reversible doping/dedoping
process, tunable chemical and electrochemical properties and easy
processability. Thienothiophenes (TT), possessing two fused thiophenes,
are known to be good electron donors. Their π- conjugated system support
their promising applications in electronic devices such as organic
photovoltaics, field-effect transistors, pseudo-capacitors etc. , [1,2]
Another significant organic compound triphenylamine (TPA) units, which
are an efficient electron rich hole transporter, are widely used in
electronic and optoelectronic materials.[3-5] Poly(anthraquinonyl
sulphide) (PAQS) was known to have n-type redox activity through
reversible electrochemical association of cations with its redox-active
anthraquinonyl groups.[6,7]
In this work, we report an all organic
battery based on new TT derivative possessing a strong electron donating
TPA group (TTpTPA) cathode and PAQS anode. During the charge/discharge
process, anion of the electrolyte moves into/from PTTpTPA cathode
simultaneously with association/disassociation of cation into/from PAQS
anode.