Guangxi Key Laboratory of Information Materials;
Guilin University of Electronic Technology;
Guilin 541004;
China;
Chongqing University of Technology;
College of Chemistry&Chemical Engineering;
Chongqing 400054;
China;
The Fifth Electronic Research Institute of the Ministry of Industry and Information Technology;
Guangzhou 510610;
China;
Supercapacitor; Co_(3)O_(4)-NiO; Graphene oxide; Composite; Electrochemical properties;