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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 9583785 B1

PDFFull Text
Date of Patent:
Feb. 28, 2017

Filed:

Dec. 02, 2014

Cable-type secondary battery

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Yo-han Kwon, Daejeon, KR;

Sang-Wook Woo, Daejeon, KR;

Hye-Ran Jung, Daejeon, KR;

Je-Young Kim, Daejeon, KR;

Heon-Cheol Shin, Busan, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Cynthia K Walls

Int. Cl.
CPC ...
H01M 2/22 (2006.01); H01M 10/0587 (2010.01); H01M 10/052 (2010.01); H01M 10/04 (2006.01); H01M 4/66 (2006.01); H01M 4/78 (2006.01); H01M 10/0565 (2010.01); H01M 10/058 (2010.01); H01M 6/44 (2006.01); H01M 4/75 (2006.01); H01M 4/76 (2006.01); H01M 2/02 (2006.01); H01M 4/02 (2006.01); H01M 2/16 (2006.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01);
U.S. Cl.
CPC ...
H01M 10/052 (2013.01); H01M 4/667 (2013.01); H01M 4/75 (2013.01); H01M 4/767 (2013.01); H01M 4/78 (2013.01); H01M 6/44 (2013.01); H01M 10/04 (2013.01); H01M 10/0431 (2013.01); H01M 10/058 (2013.01); H01M 10/0565 (2013.01); H01M 10/0587 (2013.01); H01M 2/0267 (2013.01); H01M 2/1653 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/66 (2013.01); H01M 2004/025 (2013.01);
Abstract

The present invention relates to a cable-type secondary battery having a horizontal cross section of a predetermined shape and extending longitudinally, comprising: an inner electrode having an inner current collector and an inner electrode active material layer surrounding the outer surface of the inner current collector; a separation layer surrounding the outer surface of the inner electrode to prevent a short circuit between electrodes; and an outer electrode surrounding the outer surface of the separation layer, and having an outer electrode active material layer, an open-structured outer current collector and a conductive paste layer. The outer electrode having a conductive paste layer and an open-structured outer current collector according to the present invention has good flexibility to improve the flexibility of a cable-type secondary battery having the same. Also, the conductive paste layer is made of a light material, and thus can contribute to the lightening of the cable-type secondary battery.

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