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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 10276871 B1

PDFFull Text
Date of Patent:
Apr. 30, 2019

Filed:

Dec. 07, 2015

Rechargeable lithium battery

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Hokuto Yokotsuji, Yokohama, JP;

Hironari Takase, Yokohama, JP;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Laura Weiner

Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 10/0567 (2010.01); H01M 4/134 (2010.01); H01M 4/133 (2010.01); H01M 4/36 (2006.01); H01M 10/42 (2006.01); H01M 10/0525 (2010.01); H01M 10/0569 (2010.01); H01M 4/38 (2006.01); H01M 4/587 (2010.01); H01M 4/131 (2010.01);
U.S. Cl.
CPC ...
H01M 4/62 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/364 (2013.01); H01M 10/0567 (2013.01); H01M 10/4235 (2013.01); H01M 4/131 (2013.01); H01M 4/382 (2013.01); H01M 4/386 (2013.01); H01M 4/587 (2013.01); H01M 10/0525 (2013.01); H01M 10/0569 (2013.01);
Abstract

A rechargeable lithium battery includes a negative electrode including a negative active material including a silicon-based material and a carbon-based material; and an electrolyte solution, wherein the negative electrode further includes greater than or equal to about 0.01 parts by weight and less than or equal to about 1 part by weight of a compound represented by Chemical Formula 1, based on 100 parts by weight of the negative active material, and at least one, selected from the electrolyte solution and the negative electrode, includes greater than or equal to about 0.1 wt % and less than or equal to about 2 wt % of lithium fluorosulfonate and/or lithium bis(fluorosulfonyl)imide, based on the total weight of the electrolyte solution:

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