Secondary cell

A secondary battery comprising a power generating element, wherein a positive electrode plate, in which a positive electrode active material layer is disposed on at least one surface of a first current collector, and a negative electrode plate, in which a negative electrode active material layer having an area larger than an area of the positive electrode active material layer is disposed on at least one surface of a second current collector, are stacked with a separator holding an electrolyte interposed therebetween in a state in which the positive electrode active material layer and the negative electrode active material layer face each other,

• the negative electrode plate comprises a facing portion facing the positive electrode active material layer with the separator interposed therebetween and a non-facing portion positioned at the outer periphery of the facing portion and not facing the positive electrode active material layer with the separator interposed therebetween,
• the negative electrode plate and the separator are bonded through a bonding layer, and
• in the bonding layer, bonding strength of a second bonding portion that bonds the non-facing portion to the separator is larger than bonding strength of a first bonding portion that bonds the facing portion to the separator.