A hydrogen absorbing alloy for battery application

Details A hydrogen absorbing alloy for battery application A hydrogen absorbing alloy for battery application

C - Chemistry, Metallurgy

22

C

C22C 19/03 (2006.01) H01M 4/24 (2006.01) H01M 4/38 (2006.01) H01M 10/26 (2006.01)

Patent

CA 2241476

A hydrogen absorbing alloy is disclosed for use as the negative electrode in alkaline batteries. The general formula of the alloy is AB x M y, wherein A is selected from the rare earth element La or a mischmetal thereof; B is selected from the group consisting of Ni, Fe, Mn, Cr, Cu, Co, and mixtures thereof; M is selected from the group consisting of Al, In, Zn, Sn, Ga, Si, Ge, Bi, and mixtures thereof; 4.5~x~5.5; and 0.3<y~0.6. This alloy has a longer cycle life, along with larger capacity and better reactivity.

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