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.:
Date of Patent:
Jan. 01, 2019
Filed:
Apr. 04, 2014
Applicant:
Lg Chem, Ltd., Seoul, KR;
Inventors:
Sung Hoon Yu, Daejeon, KR;
Doo Kyung Yang, Daejeon, KR;
Sun Sik Shin, Daejeon, KR;
Song Taek Oh, Daejeon, KR;
Yoo Sun Kang, Daejeon, KR;
Kyung Mi Lee, Daejeon, KR;
Jin Hyun Park, Daejeon, KR;
Jung Don Suk, Daejeon, KR;
Assignee:
LG Chem, Ltd., , KR;
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0565 (2010.01); H01M 10/052 (2010.01); H01M 10/058 (2010.01); H01M 4/505 (2010.01); H01M 4/58 (2010.01); H01M 10/0525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0565 (2013.01); H01M 10/052 (2013.01); H01M 10/058 (2013.01); H01M 4/505 (2013.01); H01M 4/5825 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0085 (2013.01); Y02T 10/7011 (2013.01); Y10T 29/49115 (2015.01);
Abstract
Provided are a lithium secondary battery including a cathode, an anode, a separator, and a gel polymer electrolyte, wherein the gel polymer electrolyte includes an acrylate-based polymer and a charge voltage of the battery is in a range of 4.3 V to 5.0 V, and a method of preparing the lithium secondary battery. A high-voltage lithium secondary battery of the present invention has excellent capacity characteristics at a high voltage of 4.3 V or more.