CPC H01M 4/242 (2013.01) [H01M 4/383 (2013.01); H01M 4/622 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/24 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01)] | 3 Claims |
1. An alkaline secondary battery comprising a negative electrode comprising a sheet-shaped metal substrate on which a negative-electrode composition is laminated, the negative-electrode composition comprises:
an active material,
a binder resin, and,
an electrically conductive agent containing an electrically conductive carbon material; wherein
when a value of D50 is defined to be an average particle size X and a value of D20 is defined to be a particle size Y in a cumulative particle size distribution obtained by measuring the active material using a laser diffractometry particle size distribution meter, and
the average particle size X is from 8 μm to 10 μm, and the particle size Y is in a range of 30% or more and 70% or less of the average particle size X, and
wherein the active material is a hydrogen storage alloy.
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