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:
Jun. 24, 2014
Filed:
Nov. 07, 2008
Applicants:
Suyoung Ryu, Daejeon, KR;
Dongmyung Kim, Daejeon, KR;
Eun Young Kim, Seoul, KR;
Inventors:
Assignee:
LG Chem, Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 6/14 (2006.01); H01M 10/0566 (2010.01); H01M 10/0564 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0566 (2013.01); H01M 10/0564 (2013.01); H01M 2300/0017 (2013.01);
Abstract
Provided is a secondary battery containing polyalkyleneglycol diglycidylether represented by formula I added in a predetermined amount to an electrolyte for the battery. The secondary battery containing the above additive exhibits remarkably improved high-temperature characteristics, prevents deterioration in rate characteristics and cycle characteristics, and considerably reduces thickness swelling of the battery so as to prevent battery leakage, ultimately enhancing safety of the battery.