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:
Dec. 13, 2022
Filed:
May. 23, 2022
Applicant:
Slobodan Petrovic, Portland, OR (US);
Inventor:
Slobodan Petrovic, Portland, OR (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/137 (2010.01); H01M 4/60 (2006.01); H01M 10/052 (2010.01); H01M 4/62 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/663 (2013.01); H01M 4/137 (2013.01); H01M 4/602 (2013.01); H01M 4/628 (2013.01); H01M 4/668 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01);
Abstract
A dual porosity cathode for a lithium-air battery made from porous nanographene sponge molded to form a multitude of pores embedded in a polymer layer. The first level of porosity is the interior surface area of the molded pores. The second level of porosity is the interior surface area within the micropores within the porous nanographene sponge material. The dual porosity cathode is useful for a lithium-air battery because of the greatly increased cathode surface area created by the micropores and the very small localized quantities of LiOthat form in the micropores from the reaction between Liand oxygen.