NEGATIVE ELECTRODE COLLECTOR FOR NICKEL CADMIUM BATTERY, ITS MANUFACTURING METHOD, AND NEGATIVE ELECTRODE FOR NICKEL CADMIUM BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a negative electrode collector for a nickel cadmium battery formed of highly pure nickel as a whole to prevent the degradation of a charge- discharge characteristic, easy to recycle, never deformed or ruptured because of having high strength and excellent dimensional stability, easy to thin and suitable for increasing the capacity of the battery, and provide its manufacturing method and a negative electrode. SOLUTION: This negative electrode collector 10 is formed into a thin plate shape having multiple holes 101 with nickel having a Vickers hardness of 350-450, and containing carbon at a content of 0.01-0.1%. In this manufacturing method, by using a plating die patterned with an electrode region corresponding to the negative electrode collector 10 and an insulation region corresponding to the holes 101, a thin film of nickel is selectively deposited on the electrode region by means of electroplating, and thereafter, the thin film is separated from the plating die. In this negative electrode, cadmium is carried on the negative electrode collector 10.