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:
Nov. 10, 2015
Filed:
Oct. 13, 2009
Tomitaro Hara, Okazaki, JP;
Akira Tsujiko, Aichi-ken, JP;
Sachie Yuasa, Okazaki, JP;
Takahito Imamine, Nisshin, JP;
Yuichi Itou, Toyota, JP;
Hiroshi Sawada, Seto, JP;
Chikaaki Okuda, Nagoya, JP;
Osamu Hiruta, Nagoya, JP;
Mamoru Mizutani, Owariasahi, JP;
Tomitaro Hara, Okazaki, JP;
Akira Tsujiko, Aichi-ken, JP;
Sachie Yuasa, Okazaki, JP;
Takahito Imamine, Nisshin, JP;
Yuichi Itou, Toyota, JP;
Hiroshi Sawada, Seto, JP;
Chikaaki Okuda, Nagoya, JP;
Osamu Hiruta, Nagoya, JP;
Mamoru Mizutani, Owariasahi, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Abstract
A lithium ion secondary battery provided by the present invention has a positive electrode having a current collector and a positive electrode composite layer provided on the current collector. The current collector contains a metal element A as a main component thereof. The positive electrode composite layer contains a two-phase compound containing lithium as a positive electrode active material. The positive electrode composite layer also contains as an additive a compound having a metal element B, in a composition thereof, that has a higher ionization tendency than the metal element A.