Coating Current Collector Surface with Ni–Al Layered Double Hydroxide by Liquid Phase Deposition to Reduce Charge-Transfer Resistance

Abstract

The direct synthesis of an Ni-Al layered double hydroxide (LDH) as the active material in an Ni–metal hydride secondary battery on an electron-conductive substrate was performed using liquid phase deposition method. A reduction in charge-transfer resistance was achieved by coating a Ni–Al LDH film on a Ni foam surface current collector, as a result of improved adhesion between the current collector and the active material.