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:
Jan. 31, 2017
Filed:
Jan. 17, 2012
Masahiro Morita, Nisshin, JP;
Toshihiko Mitsuhashi, Toyota, JP;
Keisuke Ohara, Osaka, JP;
Yuji Yokoyama, Moriguchi, JP;
Yusuke Fukumoto, Moriguchi, JP;
Tatsuya Hashimoto, Osaka, JP;
Masahiro Morita, Nisshin, JP;
Toshihiko Mitsuhashi, Toyota, JP;
Keisuke Ohara, Osaka, JP;
Yuji Yokoyama, Moriguchi, JP;
Yusuke Fukumoto, Moriguchi, JP;
Tatsuya Hashimoto, Osaka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
The present invention provides a sealed lithium secondary battery in which redox shuttle reactions of an aromatic compound that is an overcharge inhibitor are inhibited, and the aromatic compound decomposes appropriately, and a desired amount of gas can be generated more stably than in conventional instances, even in high-temperature environments. In the sealed lithium secondary battery (), an electrode assembly () and an electrolyte are accommodated in a battery case () that is provided with a current interrupt device (). The electrolyte comprises a compound that is capable of suppressing drops in viscosity of the electrolyte as a result of a rise in temperature in a temperature region up to 100° C., and an aromatic compound capable of generating hydrogen gas when a predetermined battery voltage is exceeded.