Nickel hydroxide battery cathode with reducible metal oxide layer - to increase available storage capacity for impulse loading

摘要

Positive Ni hydroxide electrodes for galvanic sec. cells with alkaline electrolytes consist of a Ni hydroxide layer and an additional layer of a reducible metal oxide (HgO), which is present in a matrix of Raney Ni. The cells are useful as small button cells e.g. for electronic watches with LED or backlit PCD. The additional layer gives more available storage capacity for impulse loading.