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:
Jan. 05, 2021
Filed:
Aug. 24, 2018
Applicant:
Global Graphene Group, Inc., Dayton, OH (US);
Inventors:
Assignee:
Global Graphene Group, Inc., Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/60 (2006.01); H01M 10/0525 (2010.01); H01M 4/58 (2010.01); H01M 4/48 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/48 (2013.01); H01M 4/582 (2013.01); H01M 4/5825 (2013.01); H01M 4/604 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01);
Abstract
Provided is a lithium battery cathode electrode comprising multiple particulates of a cathode active material, wherein at least a particulate comprises one or a plurality of particles of a cathode active material being encapsulated by a thin layer of a sulfonated elastomer, wherein the encapsulating thin layer of sulfonated elastomer has a thickness from 1 nm to 10 μm, a fully recoverable tensile strain from 2% to 800%, and a lithium ion conductivity from 10S/cm to 5×10S/cm. The encapsulating layer may further contain an electron-conducting additive and/or a lithium ion-conducting additive dispersed in the sulfonated elastomer.