Acid Electrolytes for Hybrid ESs

The reaction which occurs in the positive Pb02 electrode in H2SO4 electrolytes is the same as the conventional Pb//Pb02, which is described by [94,100]  

An alternative electrolyte composed of methanesulfonic acid (CH3SO3H) and lead methanesulfonate has been proposed to address this problem [96], In this case, the redox reaction at the Pb02 electrode becomes solid/solvated ions in methanesulfonic acid-based electrolyte instead of a solid/solid couple in H2SO4 electrolyte [96]  

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