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:
Apr. 14, 2015
Filed:
Jun. 08, 2010
Toshinori Sugimoto, Kyoto, JP;
Eriko Ishiko, Kyoto, JP;
Tetsuya Higashizaki, Kyoto, JP;
Michiyuki Kono, Kyoto, JP;
Toshinori Sugimoto, Kyoto, JP;
Eriko Ishiko, Kyoto, JP;
Tetsuya Higashizaki, Kyoto, JP;
Michiyuki Kono, Kyoto, JP;
Dai-Ichi Kogyo Seiyaku Co., Ltd., Kyoto, JP;
Abstract
The lithium secondary battery of the present invention is a lithium secondary battery including a positive electrode, a negative electrode, a separator provided between the positive electrode and the negative electrode, and a non-aqueous electrolyte containing a lithium salt, wherein the non-aqueous electrolyte includes, as a solvent, an ionic liquid containing a bis(fluorosulfonyl)imide anion as an anion component; and the separator is a nonwoven fabric comprising at least one member selected from an organic fiber and a glass fiber and has a porosity of 70% or more.