chemical current source

The analysis of existing methods of measurement of internal resistance of chemical current sources (CCS) was carried out. Their shortcomings were noted. The method of measurement of full internal resistance the CCS based on the analysis of transient characteristics of a charge from it of the condenser of known capacity is considered.

The results of the studies of the electrochemical synthesis of multilayer graphene oxide were presented, and the possibility of using it as an electrode material of the supercapacitor was shown. In an alcohol suspension the thickness of the particles of multilayer graphene oxide was less than 0.1 μm with an area of more than 100 μm2. The graphene oxide-based electrode has a high specific capacity of 107 F⋅g-1 and a high charge retention rate of 97% after 5000 cycles.