Back to results
US 5,712,054 AGranted
Rechargeable hydrogen battery
AssigneeElectrion, Inc.
InventorJoseph B. Kejha
Life of this patent
Estimating the term…
Abstract
A very high gravimetric energy and power density hydrogen ion based rechargeable battery, which stores hydrogen and oxygen in lightweight porous carbon electrodes with metalized current collectors, and which are separated by ionically permeable polymeric membranes containing a liquid electrolyte. The hydrogen and oxygen are produced by electrolysis of water in the battery during charging and the battery cells are enclosed in lightweight, metalized polymer housings of honeycomb construction. The battery is also very highly rechargeable due to the use of carbon and hydrogen.
Claims25
A hydrogen ion based battery cell which comprises:
- two electrodes containing metal current collectors and porous carbons with a catalyst, in which said carbons are saturated, one with hydrogen and the other with oxygen,
- an ion conducting membrane of sandwich construction, having a liquid electrolyte trapped between two porous, electrically non conductive sheets, which are ionically permeable, but not liquid permeable and said membrane is located substantially in vertical position between said electrodes,
- a liquid electrolyte contained in two separate chambers under said electrodes and said chambers are connected by a tube or tunnel to keep said electrolyte in substantial equilibrium in both chambers,
- two horizontal filters permeable by liquids and gases located under said electrodes and separating said carbons and catalyst of the electrodes from said electrolyte,
- two additional electrodes submerged in said electrolyte separately in said electrolyte chambers,
- and an electrically insulating, gas and liquid sealing housing, which encompasses all said components and is divided by said membrane into two halves and said halves are hermetically sealed to said membrane.
3 more elements
Dependencies are inferred from the claim text.