A cathode active material for alkaline electrochemical cells comprising an Ag-Bi-M-containing
oxidation product produced by oxidizing with an oxidizing agent an Ag-Bi-M-containing
neutralized precipitate obtained by reacting inorganic acid salts of silver, bismuth
and, optionally, M (M representing at least one metal selected from the group comprised
of manganese, nickel and cobalt) with an alkali hydroxide in an aqueous medium;
or comprising an Ag-Bi-M-containing oxidation product obtained by reacting inorganic
acid salts of silver, bismuth and, optionally, M with an alkali hydroxide in an
aqueous medium and in the presence of an oxidizer.
