Hydrogen storage alloy powder and an electrode comprising the sa

Details Hydrogen storage alloy powder and an electrode comprising the sa Hydrogen storage alloy powder and an electrode comprising the sa

1997-11-18

1999-10-19

Wyszomierski, George

Specialized metallurgical processes, compositions for use therei

Compositions

Loose particulate mixture containing metal particles

420900, 4292182, H01M 438

Patent

active

059682256

ABSTRACT:
A powder of a hydrogen storage alloy which comprises metallic nickel in or on the surfaces of the powder in an amount sufficient to impart a magnetization intensity of 0.5 to 6 emu/g to the powder. The powder has a specific surface area of 0.15 to 0.7 m.sup.2 /g when determined according to a BET adsorption method, an oxygen concentration of 0.15 to 1.5 wt %, and an average particle size of 10 to 100 .mu.m, with a size distribution wherein the content of particles having a size of 8 .mu.m or below is in the range of 30 wt % or below. An electrode for secondary cells is also described, which comprises the powder defined above.

REFERENCES:
patent: 3883346 (1975-05-01), Martin
patent: 5338333 (1994-08-01), Uda et al.

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