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:
Dec. 15, 2015
Filed:
Jul. 08, 2008
Applicants:
Mari Kashima, Kyoto, JP;
Eriko Ishiko, Kyoto, JP;
Tetsuya Higashizaki, Kyoto, JP;
Inventors:
Assignee:
Dai-Ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 10/052 (2010.01); H01M 10/0569 (2010.01); H01M 10/0525 (2010.01); H01M 10/42 (2006.01);
U.S. Cl.
CPC ...
H01M 10/052 (2013.01); H01M 2/162 (2013.01); H01M 2/1686 (2013.01); H01M 10/0569 (2013.01); H01M 10/4235 (2013.01); H01M 10/0525 (2013.01); H01M 2300/0045 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract
An incombustible lithium secondary battery, which has excellent battery capacity and high safety, contains a separator provided between a positive electrode and a negative electrode, and a nonaqueous electrolytic solution containing a lithium salt, in which the nonaqueous electrolytic solution employs an ionic liquid as a solvent, and the separator contains an electrically insulating porous inorganic membrane and a substrate. The ionic liquid may contain a bis(fluorosulfonyl)imide anion as an anionic component, and may contain a cation containing a nitrogen atom as a cationic component.