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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 9118084 B1

PDFFull Text
Date of Patent:
Aug. 25, 2015

Filed:

Sep. 09, 2014

Electrode for secondary battery, preparation thereof, and secondary battery and cable-type secondary battery comprising the same

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Yo-Han Kwon, Daejeon, KR;

Hye-Ran Jung, Daejeon, KR;

Eun-Kyung Kim, Daejeon, KR;

Je-Young Kim, Daejeon, KR;

In-Chul Kim, Daejeon, KR;

Hyo-Mi Kim, Daejeon, KR;

Assignee:

LG Chem. Ltd., , KR;

Attorney:

Lerner, David, Littenberg, Krumholz & Mentlik, LLP

Primary Examiner:

Carlos Barcena

Int. Cl.
CPC ...
H01M 4/13 (2010.01); H01M 4/66 (2006.01); H01M 10/0525 (2010.01); H01M 4/485 (2010.01); H01M 4/58 (2010.01); H01M 4/62 (2006.01); H01M 4/583 (2010.01); H01M 10/04 (2006.01); H01M 2/14 (2006.01); H01M 4/02 (2006.01); H01M 4/64 (2006.01); H01M 10/052 (2010.01); H01M 10/058 (2010.01); H01M 10/0565 (2010.01); H01M 10/0567 (2010.01); H01M 10/0569 (2010.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01);
U.S. Cl.
CPC ...
H01M 10/0422 (2013.01); H01M 2/14 (2013.01); H01M 4/02 (2013.01); H01M 4/043 (2013.01); H01M 4/0404 (2013.01); H01M 4/13 (2013.01); H01M 4/366 (2013.01); H01M 4/485 (2013.01); H01M 4/583 (2013.01); H01M 4/5825 (2013.01); H01M 4/622 (2013.01); H01M 4/623 (2013.01); H01M 4/625 (2013.01); H01M 4/64 (2013.01); H01M 4/661 (2013.01); H01M 4/663 (2013.01); H01M 10/04 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 10/0525 (2013.01); H01M 10/0565 (2013.01); H01M 10/0567 (2013.01); H01M 10/0569 (2013.01); H01M 2220/20 (2013.01); H01M 2220/30 (2013.01); H01M 2300/0028 (2013.01); H01M 2300/0082 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

A sheet-form electrode for a secondary battery includes a current collector; an electrode active material layer formed on one surface of the current collector; a porous organic-inorganic layer formed on the electrode active material layer and including inorganic particles and a polymer binder; and a first porous supporting layer formed on the porous organic-inorganic layer. The sheet-form electrode for a secondary battery has supporting layers on at least one surface thereof to exhibit surprisingly improved flexibility and prevent the release of the electrode active material layer from a current collector even if intense external forces are applied to the electrode, thereby preventing the decrease of battery capacity and improving the cycle life characteristic of the battery.

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