Patent ID: 6355369
Filing Date: 2002-03-12
Classification: H01M,Y02E,Y10S

Abstract:
A battery comprising:at least one non-consumable gas diffusion positive electrode; at least one consumable negative metal electrode; an electrolyte based on water solutions of salts and/or bases; and a housing enclosing said electrolyte, said at least one positive electrode and said at least one negative electrode, to create an inter-electrode gap, wherein said battery further comprises: a first unit, comprising said housing with said at least one positive electrode, and a second unit, comprising said at least one negative metal electrode and said electrolyte, said electrolyte being held in an electrolyte impermeable container, said second unit being replaceably and sealingly arranged in said first unit, so that when said at least one negative electrode and said electrolyte are consumed, the spent second unit is removed and a fresh second unit is inserted instead of the spent second unit, and said electrolyte impermeable container is penetrated by a puncture means after said second unit has been fully inserted into said first unit, to allow said electrolyte to flow between said at least one positive electrode and said at least one negative electrode.