Effects of Different Acids Dopant on the Electrochemical Properties of Polyaniline Cathode in Aluminum-ion batteries

Dandan Wang; Yang Si; Tonghui Cai; Haoyu Hu; Wei Xing

doi:10.54097/hset.v13i.1332

Authors

Dandan Wang
Yang Si
Tonghui Cai
Haoyu Hu
Wei Xing

DOI:

https://doi.org/10.54097/hset.v13i.1332

Keywords:

Polyaniline, Acid dopant, Aluminum-ion batteries.

Abstract

Polyaniline (PANI) as the cathode material has caused great concern in aluminum-ion batteries (AIBs) due to the low cost of raw materials, simple synthesis, good chemical stability and electrochemical reversibility. However, the effect of different doping acids on the electrochemical performance of PANI cathode has not been investigated. Here we preparation of PANI by use strong acids, medium-strong acids and weak acid as dopants. Results show that the specific capacity of PANI doped with strong acids is up to 180 mAhg^-1 at the current density of 100 mAg^-1, which is much higher in comparison with those doped with medium-strong acids (100-120 mAhg^-1) and weak acid (<60 mAhg^-1). The electrochemical properties of PANI electrode materials are mainly affected by its crystallinity, doping degree, conductivity and morphology.

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