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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 11081729 B1

PDFFull Text
Date of Patent:
Aug. 03, 2021

Filed:

Jul. 06, 2018

Non-aqueous electrolyte solution additive, and non-aqueous electrolyte solution for lithium secondary battery and lithium secondary battery which include the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Hyun Seung Kim, Daejeon, KR;

Sung Hoon Yu, Daejeon, KR;

Jeong Woo Oh, Daejeon, KR;

Chul Haeng Lee, Daejeon, KR;

Assignee:

LG Chem, Ltd.;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Wyatt P McConnell

Int. Cl.
CPC ...
H01M 10/0567 (2010.01); C07C 229/30 (2006.01); C07D 207/16 (2006.01); C07D 211/60 (2006.01); C07D 233/90 (2006.01); C07D 241/04 (2006.01); C07D 295/145 (2006.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0567 (2013.01); C07C 229/30 (2013.01); C07D 207/16 (2013.01); C07D 211/60 (2013.01); C07D 233/90 (2013.01); C07D 241/04 (2013.01); C07D 295/145 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 2004/028 (2013.01); H01M 2300/0025 (2013.01);
Abstract

The present invention relates to a non-aqueous electrolyte solution additive, and a non-aqueous electrolyte solution for a lithium-ion battery and a lithium-ion battery which include the same, and particularly, to a non-aqueous electrolyte solution, which may remove an acid generated by the decomposition of a lithium salt while being able to suppress the dissolution of metal impurities causing failure in the battery by using and including a Lewis base compound containing a propargyl group as a non-aqueous electrolyte solution additive for a lithium-ion battery, and a lithium secondary battery in which transition metal dissolution in a positive electrode and a low-voltage phenomenon are improved.

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