Extraordinary pseudocapacitive energy storage triggered by phase transformation in hierarchical vanadium oxides

• Published in: Nature communications Vol. 9; no. 1; pp. 1375 - 9
• Main Authors: Liu, Bo-Tian, Shi, Xiang-Mei, Lang, Xing-You, Gu, Lin, Wen, Zi, Zhao, Ming, Jiang, Qing
• Format: Journal Article
• Language: English
• Published: London Nature Publishing Group UK 10.04.2018; Nature Publishing Group; Nature Portfolio
• Subjects: 140/133; 140/146; 147/135; 147/137; 147/143; 639/301; 639/301/357; 639/4077; 639/4077/4079; 639/4077/909; Accessibility; Aqueous electrolytes; Capacitance; Carbon; Corundum; Electric power; Electrochemistry; Electrodes; Electrolytes; Energy storage; Flux density; Humanities and Social Sciences; Laboratories; multidisciplinary; Oxides; Phase transitions; Rutile; Science; Science (multidisciplinary); Sodium; Tunnels; Vanadium; Vanadium dioxide; Vanadium oxides

Pseudocapacitance holds great promise for improving energy densities of electrochemical supercapacitors, but state-of-the-art pseudocapacitive materials show capacitances far below their theoretical values and deliver much lower levels of electrical power than carbon-based materials due to poor cati...