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:
Feb. 09, 2021

Filed:

Feb. 06, 2019
Applicant:

Storedot Ltd., Herzeliya, IL;

Inventors:

Doron Burshtain, Herzliya, IL;

Daniel Aronov, Netanya, IL;

Eran Sella, Tel-Aviv, IL;

Assignee:

STOREDOT LTD., Herzeliya, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/42 (2006.01); H01M 10/0525 (2010.01); H01M 10/0567 (2010.01); H01M 10/0562 (2010.01);
U.S. Cl.
CPC ...
H01M 10/4235 (2013.01); H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 10/0567 (2013.01); H01M 2300/0091 (2013.01); H01M 2300/0094 (2013.01); Y02E 60/10 (2013.01);
Abstract

Electrolytes, anode material particles and methods are provided for improving performance and enhancing the safety of lithium ion batteries. Electrolytes may comprise ionic liquid(s) as additives which protect the anode material particles and possibly bind thereto; and/or may comprise a large portion of fluoroethylene carbonate (FEC) and/or vinylene carbonate (VC) as the cyclic carbonate component, and possibly ethyl acetate (EA) and/or ethyl methyl carbonate (EMC) as the linear component; and/or may comprise composite electrolytes having solid electrolyte particles coated by flexible ionic conductive material. Ionic liquid may be used to pre-lithiate in situ the anode material particles. Disclosed electrolytes improve lithium ion conductivity, prevent electrolyte decomposition and/or prevents lithium metallization on the surface of the anode.


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