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. 20, 2024
Filed:
Jul. 07, 2020
Applicant:
Apple Inc., Cupertino, CA (US);
Inventors:
Alan A. Ritchie, Menlo Park, CA (US);
Bernd Jurgen Neudecker, Los Gatos, CA (US);
Karl M. Brown, Los Gatos, CA (US);
Andrew Basile, Santa Clara, CA (US);
Assignee:
APPLE INC., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/0567 (2010.01); H01M 4/485 (2010.01); H01M 10/052 (2010.01); H01M 4/38 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); H01M 4/382 (2013.01); H01M 4/485 (2013.01); H01M 10/052 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0025 (2013.01);
Abstract
Liquid electrolytes for a lithium metal battery comprise an aprotic solvent, an ionic liquid, a lithium salt, 8 mol % to 30 mol % hydrofluoroether and up to 5 mol % additives. A molar ratio of the hydrofluoroether to the lithium salt is 0.22:1 to 0.83:1. The liquid electrolytes achieve at least a 50% improvement in cycle life over conventional electrolytes, extend capacity retention and delay increases in internal resistance.