Redox Materials for Electrochemical Capacitors
Journal
Electrochemistry
Journal Volume
92
Journal Issue
7
Start Page
074002
ISSN
1344-3542
2186-2451
Date Issued
2024-07-31
Author(s)
Masanobu CHIKU
Mozaffar ABDOLLAHIFAR
Thierry BROUSSE
George Z. CHEN
Olivier CROSNIER
Bruce DUNN
Krzysztof FIC
Chi-Chang HU
Paweł JEŻOWSKI
Adam MAĆKOWIAK
Katsuhiko NAOI
Nobuhiro OGIHARA
Naohisa OKITA
Masashi OKUBO
Wataru SUGIMOTO
DOI
10.5796/electrochemistry.24-70054
Abstract
Electrochemical capacitors are known for their high power density and cyclability, and various redox reactions can be utilized to improve their energy density. A great variety of redox materials have been investigated recently for use in electrochemical capacitors, not only transition metal oxides, which have been studied for many years. In this review, we provide a comprehensive explanation of redox materials for electrochemical capacitors. Manganese oxides and ruthenium oxides, which are typical metal oxides exhibiting pseudocapacitance, are first discussed. Nickel oxides used in hybrid capacitors are also covered. Various 0D and 2D nanomaterials are highlighted. Pseudo-capacitance using nanosized complex materials and metal-organic frameworks is also presented. Furthermore, electrolyte systems that exhibit redox characteristics for electrochemical capacitors are also reviewed.
Subjects
Electrochemical Capacitor
Pseudo Capacitor
Redox Material
SDGs
Publisher
The Electrochemical Society of Japan
Type
journal article