Recent progress in supercapacitors based on the advanced carbon electrodes

Abstract

This paper demonstrates a brief review of the research progress of the advanced carbon-based materials for the supercapacitor electrodes. Diverse types of carbon-based electrodes exploited and reported to the literature are summarized and classified into pure carbon electrodes, carbon/metal oxides composite electrodes, carbon/metal oxides/conducting polymers composite electrodes as well as carbon electrodes based on other materials. Pure carbon electrodes are firstly introduced, confirming their merits and shortcomings. To cover the shortage of pure carbon electrodes and further enhances their electrochemical performance, a composite electrode, combined with metal oxides and conducting polymers, is respectively presented. It is worth noticing in this article that combining various materials to form composites has been one main direction to own a positive synergistic effect on the carbon-based electrodes.

Carbon-Based Polymer Nanocomposite for High-Performance Energy Storage Applications

“…Although an important journey has been completed to improve nanocomposite electroactive elements for SC purposes, there are still many hurdles to be overcome [18]. The stage-wise evolution, research, and development of supercapacitors (and their properties and limitations) are shown in Figure 13 [126]. Figure 13.…”

“…Roadmap of the evolution, progress, and developments of supercapacitors. Reproduced with permission from [126]. Figure 13.…”

Recent advances in ocean wave energy harvesting by triboelectric nanogenerator: An overview

“…Therefore, researchers have developed various TENGs with different structures and functions [27], which greatly expands the way of energy harvestings such as human movement [28][29][30], water flow [31], rotation [32,33], and wind [34,35]. In the past 8 years, with the efforts of more than 40 research groups around the world, such as Wang's team [36] and Zhang's team et al [37] the output performance of TENG has been greatly improved, the area power density of a single TENG unit can reach 3,200 W/m 2 [38], and instantaneous energy conversion efficiency can be up to 70%, which can meet the needs of many small power devices [39] and can charge some supercapacitors [40]. In ocean wave energy harvesting, traditional generators are so heavy that they have to float by buoys, while TENG can float easily because of the light weight [41].…”

Binary carbon-based additives in LiFePO4 cathode with favorable lithium storage

“…And the mechanism for enhancing the electrical conductivity of the electrodes is based on forming conduction bridges among active material particles. In this regard, a range of carbon materials such as carbon black (Super-P, SP), conducting graphite, and acetylene black are commonly adopted as the conductive agents to increase the capacity, rate capability, and cycling performance of the cathode system [29][30][31][32][33][34][35][36][37][38][39].…”