between chemical energy and electrical energy)?研究化学现象与电现象的相关性(Interrelation between chemical phenomena (chemical reactions, chemical changes, etc.) and electric phenomena (charge, current, potential, electric field, etc.))?研究发生在电极与电解质界面的现象、过程和反应(The phenomena, processes and reactions occurring at interface between an electronic conductor (electrode) and an ionic conductor (electrolyte) )РElectronic conductors(Metals、Semiconductors);?Ionic conductors (electrolyte solutions, solid electrolyte, ionic liquid, melted salts);Р电化学池Р两类导体Рionic conductorР+Р-Рelectronic?conductorРelectronic?conductorРVРAРInterfaceРInterfaceРElectrodeРElectrodeРHow does the current flow at the interface between types of conductors ?РNote: Ionic conductors alone can not constitute a closed circuit to conduct current.