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:
Feb. 19, 2013
Filed:
Oct. 19, 2010
Shinako Kaneko, Sagamihara, JP;
Hitoshi Ishikawa, Sagamihara, JP;
Yasutaka Kono, Sagamihara, JP;
Yoko Hashizume, Sagamihara, JP;
Shinako Kaneko, Sagamihara, JP;
Hitoshi Ishikawa, Sagamihara, JP;
Yasutaka Kono, Sagamihara, JP;
Yoko Hashizume, Sagamihara, JP;
NEC Energy Devices, Ltd., Kanagawa, JP;
Abstract
There are provided a nonaqueous-type electrolyte solution having high flame retardancy and a good capacity retention rate, and a device comprising the nonaqueous-type electrolyte solution. The nonaqueous-type electrolyte solution is used in a device comprising a positive electrode, a negative electrode and the nonaqueous-type electrolyte solution, and contains a lithium salt and a compound having a phosphazene structure, and further contains 0.05% by mass or more and 12.0% by mass or less of at least one disulfonate ester selected from a cyclic disulfonate ester and a chain disulfonate ester based on the total of the nonaqueous-type electrolyte solution.