Heat-developable light-sensitive materials

A heat-developable light-sensitive material comprising, on a support,

• (a) a light-sensitive silver halide,
• (b) a thermally decomposable organic silver salt,
• (c) a binder, and
• (d) a reducing agent,
• wherein said thermally decomposable organic silver salt is represented by general formula (II):
• R.sup.0 --(--C.tbd.C--CO.sub.2).sub.m.mAg,
• wherein R.sup.0 represents a monovalent residue selected from the group consisting of a hydrogen atom, an alkyl group, a substituted alkyl group, a cycloalkyl group, an alkenyl group, an alkynyl group, an aryl group, a substituted aryl group, a heterocyclic residue, a substituted heterocyclic residue, an aralkyl group, a substituted aralkyl group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a substituted carbamoyl group, --CO.sub.2 M (wherein M represents an alkali metal) and --CO.sub.2 B, or a divalent residue selected from the group consisting of an alkylene group, an arylene group and a heterocyclic divalent residue, wherein B is a conjugated acid of an organic base or a quaternary ammonium group and m represents an integer of 1 to 4.