ELECTRICAL STORAGE CELL RESISTANT TO FREEZING

摘要

ELECTRICAL STORAGE CELL RESISTANT TO FREEZING The conventional sintered, thin hydrogen negative electrode of a nickel-hydrogen storage cell or the like is replaced by a thicker porous electrode having a greater volume to receive water produced at the negative electrode during discharge of the cell. As a result, the dilution of the electrolyte within the negative electrode is less as compared with the thinner electrode, so that the freezing point depression of the electrolyte within the negative electrode is maintained. Freezing of the electrolyte and reduced performance of the cell are thereby avoided. To maintain the low weight of the electrode and reduce its cost even though its thickness is increased, platinum particles are replaced by conductive particles upon which platinum has been deposited.