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.

Date of Patent:
Mar. 18, 1997

Filed:

Apr. 13, 1994
Applicant:
Inventor:

Ralph Zito, Chapel Hill, NC (US);

Assignee:

National Power PLC, Wiltshire, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M / ;
U.S. Cl.
CPC ...
429 15 ; 429 17 ; 429 50 ; 429105 ;
Abstract

An electrochemical apparatus for energy storage and/or power delivery comprises multi-compartment cells with the +.sup.ve chamber and the -.sup.ve chamber of each cell being separated by at least one buffer chamber through which an idler electrolyte circulates, the electrolyte circulating through the -.sup.ve chamber during power delivery containing sulfide and the apparatus comprising means for restoring the electrolyte balance of the -.sup.ve electrolyte by the oxidation of any S.sup.2- and/or HS.sup.- ions contained in the idler electrolyte to form sulfur, means for the collection of precipitated sulfur and means for the reintroduction of the precipitated sulfur into the -.sup.ve electrolyte.


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