A ZINC NEGATIVE ELECTRODE FOR ZINC-NICKEL SECONDARY BATTERIES, A PREPARATION METHOD THEREOF, AND A ZINC-NICKEL SECONDARY BATTERY CONTAINING THE SAME

摘要

The present invention relates to negative electrode for zinc nickel secondary batteries and the fabrication methods. These negative electrodes contain hydrophobic porous conductive granules such as carbon black granules with a hydrophobic material adsorbed. The fabrication methods for these negative electrodes include the following steps: adding a hydrophobic material to conductive porous granules such as granules in an aqueous solution; stirring the aqueous solution with the conductive porous granules and the hydrophobic material; fabricating the active material with the aqueous solution with the conductive porous granules and the hydrophobic material; and forming the negative electrode with the active material. Batteries with negative electrodes that are embodiments of this invention or are fabricated by the method of this invention are efficient in the recombination of oxygen at the electrodes during charging have low internal pressure, and are not subjected to electrolyte leakage.