Patent ID: 7851087

Claim:
A compressed nickel compound anode produced by a process comprising: compression molding an anode mixture comprising: nickel compound grains, wherein said nickel compound grains are composed of ball-shaped grains, substantially ball-shaped grains, or an aggregation of both; a compound selected from the group consisting of Y 2 O 3 , Er 2 O 3 , Yb 2 O 3 and CaF 2 ; and 3-15 wt. % of carbon grains, wherein said carbon grains comprise a mixed system of: (1) 25-75 wt. % of carbon grains, based on a total weight of the carbon grains, having a surface area of 1-30 m 2 /g; and (2) 75-25 wt. % of carbon grains, based on a total weight of the carbon grains, having a surface area of 30-300 m 2 /g, with the proviso that the carbon grains of (1) and (2) of the mixed system have a different surface area.