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. 02, 2015
Filed:
Oct. 16, 2009
Ryoichi Kato, Ibaraki, JP;
Hiroyuki Tokuda, Ibaraki, JP;
Takashi Fujii, Ibaraki, JP;
Minoru Kotato, Ibaraki, JP;
Masahiro Takehara, Ibaraki, JP;
Masamichi Onuki, Ibaraki, JP;
Youichi Ohashi, Ibaraki, JP;
Shinichi Kinoshita, Ibaraki, JP;
Ryoichi Kato, Ibaraki, JP;
Hiroyuki Tokuda, Ibaraki, JP;
Takashi Fujii, Ibaraki, JP;
Minoru Kotato, Ibaraki, JP;
Masahiro Takehara, Ibaraki, JP;
Masamichi Onuki, Ibaraki, JP;
Youichi Ohashi, Ibaraki, JP;
Shinichi Kinoshita, Ibaraki, JP;
Mitsubishi Chemical Corporation, Tokyo, JP;
Abstract
A subject is to provide a nonaqueous electrolyte excellent in cycle performances such as capacity retention after cycling, output after cycling, discharge capacity after cycling, and cycle discharge capacity ratio, output characteristics, high-temperature storability, low-temperature discharge characteristics, heavy-current discharge characteristics, high-temperature storability, safety, high capacity, high output, high-current-density cycle performances, compatibility of these performances, etc. Another subject is to provide a nonaqueous-electrolyte secondary battery employing the nonaqueous electrolyte. The subjects have been accomplished with a nonaqueous electrolyte which contains a monofluorophosphate and/or a difluorophosphate and further contains a compound having a specific chemical structure or specific properties.