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:
Jul. 09, 2013
Filed:
Sep. 03, 2010
Takumi Sawayama, Chiba, JP;
Masaaki Naito, Chiba, JP;
Tsuneaki Tamachi, Chiba, JP;
Kensuke Tahara, Chiba, JP;
Shunji Watanabe, Chiba, JP;
Takumi Sawayama, Chiba, JP;
Masaaki Naito, Chiba, JP;
Tsuneaki Tamachi, Chiba, JP;
Kensuke Tahara, Chiba, JP;
Shunji Watanabe, Chiba, JP;
Seiko Instruments Inc., Chiba-Shi, Chiba, JP;
Abstract
Provided are an electrolytic solution for a nonaqueous electrolyte secondary battery and a nonaqueous electrolyte secondary battery each of which not only has heat resistance enough to resist reflow soldering but also can maintain the discharge capacity of the battery even in a low-temperature environment. The nonaqueous electrolyte secondary battery is provided with an electrolytic solutionincluding a solute and a solvent containing a polyethylene glycol dialkyl ether and an ethylene glycol dialkyl ether, a positive electrode, a negative electrode, and a separatorformed of glass fibers and placed between the positive electrodeand the negative electrode