The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 23, 1989
Filed:
Nov. 25, 1987
Applicant:
Inventor:
Prodyot Roy, Saratoga, CA (US);
Assignee:
General Electric Company, San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 50 ; 429 20 ; 429103 ; 429112 ; 429199 ; 429 16 ;
Abstract
A secondary electrochemical cell includes a source of hydrogen as the hydrogen-providing reactant and an alkali or alkaline earth metal as the metal reactant. Hydrogen may be from H.sub.2 gas or a metal hydride. By separating the two reactants by a barrier selective for the passage of hydrogen ions, current flow may be induced in an external circuit connected across the barrier. The barrier is typically an electrolytic salt enclosed between a pair of solid metal electrodes. Electrons are gained by the hydrogen as it enters the electrolyte and lost by the hydrogen as it leaves the electrolyte. By connecting the metal electrodes, a circuit is established.