Energy & Environmental Science· 2014Q1· Review
Pseudocapacitive oxide materials for high-rate electrochemical energy storage
- 5,409citations
- Q1SCImago
- 2014year
Short summary
Pseudocapacitance in transition metal oxides offers a pathway to achieve both high energy and high power density in electrochemical energy storage devices, addressing a critical need for advanced applications.
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Key points
- Pseudocapacitance involves faradaic redox reactions for high energy density at fast rates.
- Transition metal oxides are key materials for pseudocapacitive energy storage.
- The review covers pseudocapacitive materials in aqueous and non-aqueous electrolytes.
- Challenges and future outlook for pseudocapacitive materials are discussed.
AI-generated from the title and abstract; the full text is not read.
Abstract
Electrochemical energy storage technology is based on devices capable of exhibiting high energy density (batteries) or high power density (electrochemical capacitors). There is a growing need, for current and near-future applications, where both high energy and high power densities are required in the same material. Pseudocapacitance, a faradaic process involving surface or near surface redox reactions, offers a means of achieving high energy density at high charge–discharge rates. Here, we focus on the pseudocapacitive properties of transition metal oxides. First, we introduce pseudocapacitance and describe its electrochemical features. Then, we review the most relevant pseudocapacitive materials in aqueous and non-aqueous electrolytes. The major challenges for pseudocapacitive materials along with a future outlook are detailed at the end.
The authors' abstract, as published at the source. Energy & Environmental Science, 2014 · DOI ↗
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Field: Electronic, Optical and Magnetic Materials
Electronic, Optical and Magnetic MaterialsMaterials Science