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.

Date of Patent:
Aug. 12, 2025

Filed:

Jan. 08, 2019
Applicant:

Tesla Motors Canada Ulc, North York, CA;

Inventors:

Cameron Martin, Dartmouth, CA;

Sam Hames, Truro, CA;

Matthew Genovese, Halifax, CA;

Alexander J. Louli, Halifax, CA;

Rochelle Weber, Halifax, CA;

Jeffery Dahn, Halifax, CA;

Assignee:

Tesla, Inc., Austin, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0568 (2010.01); H01M 10/052 (2010.01); H01M 10/0569 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0568 (2013.01); H01M 10/052 (2013.01); H01M 10/0569 (2013.01); H01M 2300/0034 (2013.01); H01M 2300/0037 (2013.01);
Abstract

Provided are electrolyte solutions including both lithium difluoro(oxalato)borate and lithium tetrafluoroborate and a solvent component for use in lithium metal or anode-free rechargeable battery cell and methods of using the electrolyte solutions to improve capacity retention of the battery cells. Also provided are rechargeable battery systems including a lithium metal or anode-free battery cell and electrolyte solutions including both lithium difluoro(oxalato)borate and lithium tetrafluoroborate and a solvent component. The systems described herein exhibit improved capacity retention.


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