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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.:

US 12700617 B1

PDFFull Text
Date of Patent:
Aug. 04, 2026

Filed:

Feb. 25, 2021

Difluorophosphate additive compounds and methods thereof for use in energy storage devices

Applicant:

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

Inventors:

David S. Hall, Palo Alto, CA (US);

Toren Hynes, Palo Alto, CA (US);

Connor P. Aiken, Palo Alto, CA (US);

Jeffery R. Dahn, Palo Alto, CA (US);

Assignee:

TESLA, INC., Austin, TX (US);

Attorney:

Knobbe, Martens, Olson & Bear, LLP

Primary Examiner:

Nicholas A Smith

Assistant Examiner:

Benjamin Eli Kass-Mullet

Int. Cl.
CPC ...
H01M 10/0567 (2010.01); H01M 4/02 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/583 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/44 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/583 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 10/446 (2013.01); H01M 2004/027 (2013.01); H01M 2004/028 (2013.01);
Abstract

The present disclosure relates to the synthesis and evaluation of difluorophosphate additives for use in energy storage devices. The difluorophosphate additive may be selected from the group consisting of lithium difluorophosphate (LFO), sodium difluorophosphate (NaFO), ammonium difluorophosphate (AFO), tetramethylammonium difluorophosphate (MAFO), potassium difluorophosphate (KFO), and combinations thereof. In some instances, the difluorophosphate additive is not lithium difluorophosphate (LFO).

Find Patent Forward Citations

Hall, David. (2026). Difluorophosphate additive compounds and methods thereof for use in energy storage devices (U.S. Patent No. 12700617). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12700617

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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