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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 9219291 B1

PDFFull Text
Date of Patent:
Dec. 22, 2015

Filed:

Sep. 11, 2013

Cable-type secondary battery

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Yo-Han Kwon, Daejeon, KR;

Je-Young Kim, Daejeon, KR;

Sang-Wook Woo, Daejeon, KR;

Heon-Cheol Shin, Busan, KR;

Eun-Ji Kim, Busan, KR;

Su-Jin Park, Busan, KR;

Woo-Sung Choi, Busan, KR;

Assignee:

LG Chem, Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Cynthia K Walls

Int. Cl.
CPC ...
H01M 10/0585 (2010.01); H01M 10/0564 (2010.01); H01M 10/0587 (2010.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 10/02 (2006.01); H01M 4/75 (2006.01); H01M 10/0525 (2010.01); H01M 10/058 (2010.01); H01M 10/05 (2010.01); H01M 10/0565 (2010.01); H01M 4/131 (2010.01); H01M 4/133 (2010.01); H01M 4/485 (2010.01); H01M 4/525 (2010.01); H01M 4/58 (2010.01); H01M 4/66 (2006.01); H01M 4/78 (2006.01); H01M 10/052 (2010.01); H01M 10/0568 (2010.01); H01M 6/34 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0587 (2013.01); H01M 4/04 (2013.01); H01M 4/131 (2013.01); H01M 4/133 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 4/66 (2013.01); H01M 4/661 (2013.01); H01M 4/662 (2013.01); H01M 4/663 (2013.01); H01M 4/666 (2013.01); H01M 4/668 (2013.01); H01M 4/75 (2013.01); H01M 4/78 (2013.01); H01M 10/02 (2013.01); H01M 10/05 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 10/0568 (2013.01); H01M 6/34 (2013.01); Y02E 60/122 (2013.01);
Abstract

The present invention provides a cable-type secondary battery comprising an inner electrode which includes at least one first polarity electrode having a first polarity current collector with a long and thin shape, whose cross-section perpendicular to its longitudinal direction is a circular, oval or polygonal form; a first polarity electrode active material layer formed on an outer surface of the first polarity current collector; and an electrolyte layer filled to surround the first polarity electrode active material layer, and at least one wire-type second polarity electrode which wholly surrounds the inner electrode and is winding around the exterior thereof. Thus, the inventive cable-type secondary battery provided with an outer winding electrode has excellent flexibility to prevent the release of the active material.

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