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:
Jul. 17, 2018

Filed:

Dec. 28, 2015
Applicant:

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

Inventors:

Keisuke Nomura, Yokohama, JP;

Hironobu Fukahori, Yokohama, JP;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01); H01M 4/485 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01);
U.S. Cl.
CPC ...
H01M 4/622 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 10/0525 (2013.01);
Abstract

A positive electrode for a rechargeable lithium battery includes a positive current collector; a high elastic modulus layer on the positive current collector and including a first positive active material and a high elastic modulus binder; and a low elastic modulus layer on the high elastic modulus layer and including a second positive active material and a low elastic modulus binder, wherein the low elastic modulus binder has a lower tensile modulus than the high elastic modulus binder. A winding element includes the positive electrode. A rechargeable lithium battery includes the winding element.


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