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.

Date of Patent:
Jun. 16, 2015

Filed:

Oct. 26, 2006
Applicants:

Jae Seung OH, Seoul, KR;

Shin Jung Choi, Daejeon, KR;

Byoung Bae Lee, Daejeon, KR;

Jae Duk Park, Daejeon, KR;

Ji Won Park, Daejeon, KR;

Inventors:

Jae Seung Oh, Seoul, KR;

Shin Jung Choi, Daejeon, KR;

Byoung Bae Lee, Daejeon, KR;

Jae Duk Park, Daejeon, KR;

Ji Won Park, Daejeon, KR;

Assignee:

LG CHEM, LTD., Seoul, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 10/0525 (2010.01); H01M 10/0565 (2010.01); H01M 10/0566 (2010.01); H01M 10/42 (2006.01); H01M 4/131 (2010.01); H01M 4/1391 (2010.01); H01M 4/525 (2010.01);
U.S. Cl.
CPC ...
H01M 10/0525 (2013.01); H01M 4/131 (2013.01); H01M 4/1391 (2013.01); H01M 4/525 (2013.01); H01M 10/0565 (2013.01); H01M 10/0566 (2013.01); H01M 10/4235 (2013.01); Y02E 60/122 (2013.01);
Abstract

A secondary battery comprising a cathode, an anode, a separator and an electrolyte that comprises a eutectic mixture formed of: an amide group-containing compound, and an ionizable lithium salt. The anode comprises a metal or metal oxide having a potential vs. lithium potential (Li/Li) within electrochemical window of the eutectic mixture. Because the secondary battery uses a eutectic mixture as an electrolyte in combination with an anode having a potential vs. lithium potential (Li/Li) within the electrochemical window of the eutectic mixture, problems such as decomposition of an electrolyte and degradation of the quality of a battery are avoided. Also, due to the thermal and chemical stability, high conductivity and a broad electrochemical window of a eutectic mixture, it is possible to improve the quality as well as safety of a battery.


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