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:
Aug. 04, 2015
Filed:
Jun. 27, 2012
Applicants:
Won-il Jung, Yongin-si, KR;
Seon-hye Kim, Yongin-si, KR;
Inventors:
Won-Il Jung, Yongin-si, KR;
Seon-Hye Kim, Yongin-si, KR;
Assignee:
Samsung SDI Co., Ltd., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/505 (2010.01); H01M 4/58 (2010.01); H01M 4/36 (2006.01); H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 4/131 (2010.01); H01M 4/525 (2010.01); H01M 10/052 (2010.01); H01M 4/133 (2010.01); H01M 4/134 (2010.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 10/0568 (2010.01); H01M 10/0569 (2010.01); H01M 10/0587 (2010.01);
U.S. Cl.
CPC ...
H01M 4/505 (2013.01); H01M 2/16 (2013.01); H01M 2/1686 (2013.01); H01M 2/18 (2013.01); H01M 4/131 (2013.01); H01M 4/366 (2013.01); H01M 4/525 (2013.01); H01M 4/5825 (2013.01); H01M 10/052 (2013.01); H01M 4/133 (2013.01); H01M 4/134 (2013.01); H01M 4/624 (2013.01); H01M 10/0525 (2013.01); H01M 10/0568 (2013.01); H01M 10/0569 (2013.01); H01M 10/0587 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
In one aspect, a lithium secondary battery that includes a positive electrode including a high-voltage positive active material; and a separator is provided. The high voltage positive active material can have a discharge plateau voltage of greater than or equal to about 4.6V with respect to a Li counter electrode, and the separator can include a porous substrate having a porosity of about 40% to about 60%.