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. 12, 2018
Filed:
Mar. 03, 2011
Hiroki Nagai, Nagoya, JP;
Masahiro Morita, Nisshin, JP;
Takashi Iwao, Kadoma, JP;
Yukihiro Okada, Shijonawate, JP;
Hiroki Nagai, Nagoya, JP;
Masahiro Morita, Nisshin, JP;
Takashi Iwao, Kadoma, JP;
Yukihiro Okada, Shijonawate, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
It is an object of the present invention to provide a nonaqueous electrolyte secondary battery with superior high-temperature charge-discharge cycle characteristics as well as superior low-temperature high-rate charge-discharge cycle characteristics. A nonaqueous electrolyte secondary batteryaccording to the present invention has an electrode bodywhich includes a positive electrode and a negative electrode, and a battery casewhich houses the electrode bodytogether with a nonaqueous electrolyte, wherein among the nonaqueous electrolyte housed in the battery case, an electrolyte amount ratio (A/B) between a surplus electrolyte amount (A) that exists outside the electrode bodyand an intra-electrode body electrolyte amount (B) impregnating the electrode bodyranges from 0.05 to 0.2, and DBP absorption of a positive electrode active material that constitutes the positive electrode is equal to or higher than 30 (ml/100 g).