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. 20, 2018
Filed:
Mar. 26, 2014
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Automotive Energy Supply Corporation, Zama-shi, Kanagawa, JP;
Fumihiro Kawamura, Yokosuka, JP;
Ikuma Matsuzaki, Yokohama, JP;
Ryuta Yamaguchi, Yokohama, JP;
Kosuke Hagiyama, Yokohama, JP;
Takashi Honda, Yokohama, JP;
Takeshi Miyamoto, Yokohama, JP;
Osamu Shimamura, Zama, JP;
Keisuke Matsumoto, Zama, JP;
Nissan Motor Co. Ltd., Yokohama-Shi, Kanagawa, JP;
Automotive Energy Supply Corporation, Zama-Shi, Kanagawa, JP;
Abstract
A non-aqueous electrolyte secondary battery, when using an aqueous binder as a binder for a negative electrode active material, effectively exhausts the gas generated from an electrode, and thus, even when using it for a long period of time, a decrease in battery capacity is low. The non-aqueous electrolyte secondary battery includes a positive electrode active material layer on a surface of a positive electrode current collector, a negative electrode active material layer comprising an aqueous binder on a surface of a negative electrode current collector, a separator for maintaining an electrolytic solution, and a gas releasing means for releasing a gas generated within the power generating element to an extra space inside of the outer casing, and in which the ratio value of a volume of the extra space to a volume of pores included in the power generating element is 0.5 to 1.0.