A universal strategy for metal oxide anchored and binder-free carbon matrix electrode: A supercapacitor case with superior rate performance and high mass loading

A novel 2D carbon−metal oxide composite electrode was prepared by four steps and demonstrated as promising binder-free electrode materials for supercapacitors with ultrahigh rate performance of 93% (from 1 to 20 mA cm−2) and high mass loading (13.4 mg cm−2). Moreover, this new general strategy is also expected to facilitate the synthesis of carbon-metal oxide composite electrodes for other electrochemical devices.306