Ultrahigh Energy Density Realized by a Single-Layer β-Co(OH)2 All-Solid-State Asymmetric Supercapacitor

• Published in: Angewandte Chemie International Edition Vol. 53; no. 47; pp. 12789 - 12793
• Main Authors: Gao, Shan, Sun, Yongfu, Lei, Fengcai, Liang, Liang, Liu, Jiawei, Bi, Wentuan, Pan, Bicai, Xie, Yi
• Format: Journal Article
• Language: English
• Published: Weinheim WILEY-VCH Verlag 17.11.2014; WILEY‐VCH Verlag
• Subjects: all-solid-state devices; asymmetric supercapacitors; energy materials; oriented attachment; thin films; all-solid-state devices; energy materials; asymmetric supercapacitors; oriented attachment; thin films

A conceptually new all‐solid‐state asymmetric supercapacitor based on atomically thin sheets is presented which offers the opportunity to optimize supercapacitor properties on an atomic level. As a prototype, β‐Co(OH)2 single layers with five‐atoms layer thickness were synthesized through an oriente...