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:
Nov. 02, 2021
Filed:
Apr. 21, 2017
Applicant:
Avomeen Analytical Services, Ann Arbor, MI (US);
Inventors:
Venkata S. Reddy Channu, Ann Arbor, MI (US);
Shri Thanedar, Ann Arbor, MI (US);
Assignee:
Avomeen Analytical Services, Ann Arbor, MI (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); C08L 27/16 (2006.01); C08L 81/10 (2006.01); C08K 3/00 (2018.01); C08K 3/013 (2018.01); H01M 50/446 (2021.01);
U.S. Cl.
CPC ...
C08K 3/013 (2018.01); C08L 27/16 (2013.01); C08L 81/10 (2013.01); H01M 50/446 (2021.01);
Abstract
The present invention provides a novel process that involves a reliable, robust, reproducible, and cost effective casting technique for a shutdown separator with, for example, a combination of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) copolymer, polysulfonamide (PSA)/polyether imide (PEI), and CaCO3 powder, and for a non-shutdown separator with, for example, a combination of polysulfonamide (PSA)/polyether imide (PEI), filler/plasticizer, and metal oxide nanostructures (SiO2, TiO2, and Al2O3).