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:
Feb. 15, 2022
Filed:
May. 07, 2020
Form Energy, Inc., Somerville, MA (US);
Glenn Donahey, Mesa, AZ (US);
Ramkumar Krishnan, Scottsdale, AZ (US);
Jagjot Singh Grewal, Tempe, AZ (US);
FORM ENERGY, INC., Somerville, MA (US);
Abstract
Electrochemical metal-air cells having nested electrodes provided in an annular or cylindrical configuration, including systems that contain such cells in a sealed container. Each cell may include an oxidant electrode (air cathode) and a fuel electrode (anode), both configured in annular form. A series of permeable bodies, screens, or current collectors may be provided as part of the fuel electrode. An annular oxygen evolution electrode may also be provided in the cells. In some cases, the fuel electrode is nested within the oxidant electrode, or vice versa. Optionally, a second oxidant electrode may be included in the cells. Ionically conductive medium or electrolyte may be contained in the cell. Each cell may have its own cell housing. Optionally, an air space or pocket may be formed in a cell via an oxidant electrode. The sealed container may contain the cells such that they are surrounded by air or an electrolyte.