A schematic of a polymer electrolyte membrane hydrogen-oxygen fuel cell is shown in Figure 1. Figure 1. Hydrogen-oxygen PEM fuel cell. Hydrogen molecules dissociatively adsorb at the anode and are ...

To avoid supply chain issues and boost energy density, researchers seek to replace the vanadium-based aqueous electrolytes used today with those made using organic compounds. “People have ...

The device embeds light-emitting europium(III) complexes and color-changing viologen derivatives in a layered clay matrix, ...

Elemental sulfur from the cathode is converted into polysulfide compounds—composed of sulfur atom chains—some of which can dissolve in the electrolyte. Because of this solubility, a "shuttling ...

when battery electrolyte components cross the membrane in the battery cell and the redoxmers – redox-active molecules that can store energy in the batteries' electrolytes – migrate to the ...

By modifying the structures of molecules used in the positive and negative electrolyte solutions, and making them water soluble, the Harvard team claim that it was able to engineer a battery that ...

[1] Clarification of physical and chemical mechanism of fuel cell and material searches - Clarification of movement, transportation, and reaction of hydrogen (molecules and ions), water, and catalyst ...