Patent ID: 6033796
Filing Date: 2000-03-07
Classification: H01M,Y02E,Y02P

Abstract:
A battery comprising:a sealed casing composed of an electrically insulating material and having a separating wall composed of an electrically insulating material for dividing an inside of said sealed casing into a first compartment as a first cell and a second compartment as a second cell,said first cell including a first electrolyte which fills said first compartment, a positive electrode composed of a first catalyst which reduces ions in said first electrolyte to emit a gas, and a negative electrode immersed in said first electrolyte,said positive electrode of said first cell having a plate-like configuration, being gas-permeable, and being arranged such that an underside thereof is immersed in said first electrolyte,said second cell including a negative electrode composed of a second catalyst which absorbs and oxidizes said gas emitted by said positive electrode of said first cell, and generates ions, thereby forming an active material for said negative electrode of said second cell, a positive electrode, and a second electrolyte or solution of an active material of said positive electrode of said second cell, which fills said second compartment,said positive electrode of said second cell being immersed in said second electrolyte or solution of said active material of said positive electrode,said negative electrode of said second cell having a plate-like configuration, being gas-permeable, and being arranged such that an underside thereof is immersed in said second electrolyte or solution of said active material of said positive electrode,an upper surface of said positive electrode of said first cell, which emits said gas, and an upper surface of said negative electrode of said second cell, which absorbs said gas, defining a sealed chamber in an upper part of said sealed casing,said positive electrode of said first cell and said negative electrode of said second cell being in a conducting state to connect said first cell and said second cell in series such that said first catalyst and said second catalyst are connected with a conducting member, andsaid negative electrode of said first cell and said positive electrode of said second cell acting as electrodes for discharging and charging, respectively.