Abstract
AbstractElectrode materials with high energy densities and long‐lasting performances are crucial to durable and reliable electrochemical energy storage devices for modern information technologies (eg, Internet of things). In terms of supercapacitors, their low energy densities could be enhanced by using pseudocapacitive electrodes, but meanwhile, their ultralong lifetimes are compromised by the limited charge‐discharge cycling stabilities of pseudocapacitive materials. This review article discusses on the cycling instability issues of five common pseudocapacitive materials: conjugated polymers (or conducting polymers), metal oxides, metal nitrides, metal carbides, and metal sulfides. Specifically, the article includes the fundamentals of the failure modes of these materials, as well as thoroughly surveys the design rationales and technical details of the cycling‐stability‐boosting tactics for pseudocapacitive materials that reported in the literature. Additionally, promising opportunities, future challenges, and possible solutions associated with pseudocapacitive materials are discussed.image
Highlights
Electrical energy is of paramount importance in the Information Age
This review has described the typical failure modes and possible resolutions of five most commonly used pseudocapacitive materials: conjugated polymers, metal oxides, metal nitrides, metal carbides, and metal sulfides
We would like to highlight four issues associated with cycling stability that could serve as useful guidelines for future researches
Summary
Electrical energy is of paramount importance in the Information Age. Energy storage devices that store, manage, and distribute electrical energy are indispensable for the development of contemporary information technologies, such as smart electronics, the Internet of things (IoTs), and the Internet of everything.[1,2] Among various energy storage devices, supercapacitors, known as ultracapacitors or electrochemical capacitors, stand out because of their ultrahigh power density and superior durability. This review article will discuss the recent progress in stabilizing most common pseudocapacitive electrode materials, that is, conjugated polymers, metal oxides, metal nitrides, metal carbides, and metal sulfides.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
