ALKALINE STORAGE BATTERY CATHODE, METHOD FOR MANUFACTURING ALKALINE STORAGE BATTERY CATHODE, ALKALINE STORAGE BATTERY, METHOD FOR MANUFACTURING ALKALINE STORAGE BATTERY, ALKALINE STORAGE BATTERY CATHODE ACTIVE MATERIAL, AND METHOD FOR MANUFACTURING ALKALINE STORAGE BATTERY CATHODE ACTIVE MATERIAL

摘要

This alkaline storage battery cathode is provided with: nickel hydroxide particles covered by a cobalt-compound coating layer; a zinc compound; and an yttrium compound and/or an ytterbium compound. The zinc compound and the yttrium compound and/or ytterbium compound are blended at a blend ratio that is in accordance with the ratio of the capacity characteristics of the alkaline storage battery and the output characteristics of the alkaline storage battery.

主权项

1. An alkaline storage battery cathode comprising:
a cathode active material powder made of nickel hydroxide particles coated with a cobalt-compound coating layer; and an additive powder mixed with the cathode active material powder at a certain proportion, wherein the additive powder includes a zinc compound powder, and at least one of an yttrium compound powder and an ytterbium compound powder, mixed with the zinc compound powder, wherein the zinc compound powder and the at least one of the yttrium compound powder and the ytterbium compound powder have a mixing ratio that is determined based on an index indicating a ratio of a capacity characteristic at an upper limit temperature of an operating temperature range of an alkaline storage battery using the alkaline storage battery cathode and an output characteristic of the alkaline storage battery at a lower limit temperature of the operating temperature range.