ZINC/AIR CELL

摘要

An anode composition for zinc/air cells comprises a metal binder added to particulate zinc. The metal binder in contact with the particulate zinc is heated to above its melting point. Upon cooling the metal binder solidifies and adheres to the zinc particle surfaces to form agglomerates wherein individual zinc particles are held bound to each other by the metal binder. Gelling agent and electrolyte can then be added to form an anode mixture. The metal binder has a melting point desirably above about 35 DEG C and below the melting point of zinc. A preferred metal binder for the particulate zinc is an alloy of indium and bismuth (In/Bi). Other desisable metal binders, for example, can be an alloy of indium, bismuth and tin (In/Bi/Sn) or alloy of indium and tin (In/Sn) as well as indium metal. Use of the metal binder in the anode mixture improves conductivity of the zinc particles and replaces the need to add mercury to the anode composition.