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. 30, 2019

Filed:

May. 14, 2012
Applicants:

Jun-sik Kim, Yongin-si, KR;

So-ra Lee, Yongin-si, KR;

Sung-soo Kim, Yongin-si, KR;

Soo-an Song, Yongin-si, KR;

Jeong-soon Shin, Yongin-si, KR;

Inventors:

Jun-Sik Kim, Yongin-si, KR;

So-Ra Lee, Yongin-si, KR;

Sung-Soo Kim, Yongin-si, KR;

Soo-An Song, Yongin-si, KR;

Jeong-Soon Shin, Yongin-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/66 (2006.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/663 (2013.01); H01M 4/666 (2013.01); H01M 4/667 (2013.01); H01M 4/0414 (2013.01); H01M 4/0419 (2013.01); H01M 4/139 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

A secondary battery includes a base material, an intermediate layer including a carbon material on the base material, and an active material layer on the intermediate layer. A secondary battery including an intermediate layer may improve adhesion between the base material and the active material layer, thereby reducing the risk of separation of the active material from the base material and improving the reliability and lifetime of the secondary battery.


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