Redox electrode materials for supercapatteries

Linpo Yu, George Z. Chen

Research output: Journal PublicationArticlepeer-review

127 Citations (Scopus)
2 Downloads (Pure)

Abstract

Redox electrode materials, including transition metal oxides and electronically conducting polymers, are capable of faradaic charge transfer reactions, and play important roles in most electrochemical energy storage devices, such as supercapacitor, battery and supercapattery. Batteries are often based on redox materials with low power capability and safety concerns in some cases. Supercapacitors, particularly those based on redox inactive materials, e.g. activated carbon, can offer high power output, but have relatively low energy capacity. Combining the merits of supercapacitor and battery into a hybrid, the supercapattery can possess energy as much as the battery and output a power almost as high as the supercapacitor. Redox electrode materials are essential in the supercapattery design. However, it is hard to utilise these materials easily because of their intrinsic characteristics, such as the low conductivity of metal oxides and the poor mechanical strength of conducting polymers. This article offers a brief introduction of redox electrode materials, the basics of supercapattery and its relationship with pseudocapacitors, and reviews selectively some recent progresses in the relevant research and development.
Original languageEnglish
Pages (from-to)604-612
JournalJournal of Power Sources
Volume326
Early online date6 May 2016
DOIs
Publication statusPublished - 15 Sep 2016

Keywords

  • Capacitive faradaic process
  • Non-capacitive faradaic process
  • Pseudocapacitance
  • Redox materials
  • Supercapacitor
  • Supercapattery

Fingerprint

Dive into the research topics of 'Redox electrode materials for supercapatteries'. Together they form a unique fingerprint.

Cite this