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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 9853278 B1

PDFFull Text
Date of Patent:
Dec. 26, 2017

Filed:

Nov. 07, 2014

Secondary battery

Applicant:

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

Inventors:

Jin-Man Jeoung, Yongin-si, KR;

Jung-Woo An, Yongin-si, KR;

Jeong-Tae Kim, Yongin-si, KR;

Dae-Seop Lim, Yongin-si, KR;

Assignee:

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

Attorney:

Lee & Morse, P.C.

Primary Examiner:

Osei Amponsah

Int. Cl.
CPC ...
H01M 2/02 (2006.01); H01M 4/58 (2010.01); H01M 4/136 (2010.01); H01M 4/485 (2010.01); H01M 2/30 (2006.01); H01M 4/131 (2010.01); H01M 2/26 (2006.01); H01M 4/13 (2010.01); H01M 10/04 (2006.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 4/587 (2010.01);
U.S. Cl.
CPC ...
H01M 2/26 (2013.01); H01M 4/13 (2013.01); H01M 10/0468 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 2/263 (2013.01); H01M 2/30 (2013.01); H01M 4/587 (2013.01); H01M 4/5825 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A secondary battery includes an electrode assembly including a first non-coating portion and a second non-coating portion, a first current collector and a second current collector joined to the first non-coating portion and the second non-coating portion, respectively, a case that accommodates the electrode assembly, and a cap assembly that seals the case. The first current collector includes a first overlapping portion that overlaps and joins the first non-coating portion, the first overlapping portion having a length and a width, and the first non-coating portion having a length and a width. The length of the first overlapping portion is 30% to 70% of the length of the first non-coating portion, and the width of the first overlapping portion is 50% to 70% of the width of the first non-coating portion.

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