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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 10581073 B1

PDFFull Text
Date of Patent:
Mar. 03, 2020

Filed:

Jan. 28, 2016

Secondary battery including high-capacity negative electrode and method of manufacturing the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Kyoung Ho Kim, Daejeon, KR;

Chae Ah Kim, Daejeon, KR;

Jooyong Song, Daejeon, KR;

Hye Youn Lee, Daejeon, KR;

Hoe Jin Hah, Daejeon, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Ladan Mohaddes

Int. Cl.
CPC ...
H01M 4/38 (2006.01); H01M 4/485 (2010.01); H01M 4/1393 (2010.01); H01M 4/1395 (2010.01); H01M 4/1391 (2010.01); H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 10/04 (2006.01); H01M 4/58 (2010.01); H01M 4/583 (2010.01); H01M 4/36 (2006.01); C01B 33/00 (2006.01); C01D 15/00 (2006.01); H01M 10/0525 (2010.01); H01M 10/056 (2010.01);
U.S. Cl.
CPC ...
H01M 4/386 (2013.01); H01M 4/0461 (2013.01); H01M 4/1391 (2013.01); H01M 4/1393 (2013.01); H01M 4/1395 (2013.01); H01M 4/485 (2013.01); H01M 4/5825 (2013.01); H01M 4/66 (2013.01); H01M 4/667 (2013.01); H01M 10/04 (2013.01); C01B 33/00 (2013.01); C01D 15/00 (2013.01); H01M 4/364 (2013.01); H01M 4/5835 (2013.01); H01M 10/056 (2013.01); H01M 10/0525 (2013.01);
Abstract

Disclosed are a secondary battery comprising a negative electrode composed of two or more negative electrode plates and a method of manufacturing the secondary battery, wherein each of the negative electrode plates includes a lithium by-product layer formed through pre-lithiation reaction on a negative electrode current collector coated with a negative electrode active material, wherein an inorganic substance layer is formed on a negative electrode tab that is extended from an end at one side of the negative electrode current collector and is composed of an active material-non-coated portion not coated with the negative electrode active material, and negative electrode tabs of the negative electrode plates are electrically connected with one negative electrode lead to form a negative electrode terminal.

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