Organic battery Operando XPS Raman spectroscopy LiFePO4 Lithium batteries Magnetron sputtering Electrochemical capacitors Fermi contact SOFC Photovoltaics Aqueous electrolyte Graphite Interface Diazonium salts CO2 electrolysis Organic electrode materials Electrochemical electrodes Current collector Cycling stability Degradation Anode Coating Supercapacitor MnO2 Lithium-ion batteries Sputtering Activated carbon Intercalation Positive electrode Porous silicon Graphene NMR Electrode Batteries Fe Perovskite Power performance Electrodes Ionic liquid electrolytes Manganese dioxide Fuel cell Cyclic voltammetry Titanium nitride Crystal structure EIS Electrochemistry Lithium battery Diazonium chemistry Cations GGA+U Lithium ion batteries Negative electrode Microbatteries Physical and chemical processes Pseudocapacitance Lithium-ion battery Chemical vapor deposition Ionic conductivity Impedance spectroscopy Electrolyte DFT calculations Cycle performance CVD DFT Plasma Organic batteries Nuclear magnetic resonance spectroscopy Electrochemical performance Vanadium nitride Thin films Electrochemical capacitor Anodes Micro-supercapacitor Energy storage Microstructure Li-ion batteries MAS NMR Supercapacitors FIB/SEM Electrode material Microdevice Capacitance Nickel oxide Failure mechanism Ionogels Electrochemical impedance spectroscopy Electrical conductivity Diazonium Grafting Electrolytes Binder Silicon FeWO 4 Lithium ion battery Micro-supercapacitors Li-ion battery Ionic liquid Exsolution Transition metals