Electrolytes 90 Solid electrolytes 37 Electrolytic reduction 23 Electrodes 22 Electrochemical electrodes 19 Polyelectrolytes 19 Cathodes 18 Ions 18 Lithium-ion batteries 17 electrolyte 17 Lithium compounds 16 Oxygen 15 Article 14 Electrocatalysts 14 Performance 14 Electrochemical impedance spectroscopy 13 Proton exchange membrane fuel cells (PEMFC) 13 Oxygen reduction reaction 12 Anodes 11 Cyclic voltammetry 11 Electric discharges 11 Morphology 11 Potassium hydroxide 11 Solid oxide fuel cells (SOFC) 11 Electrolysis 10 Graphene 10 Scanning electron microscopy 10 human 10 Chlorine compounds 9 Electrochemicals 9