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:
May. 01, 2018
Filed:
Dec. 14, 2011
Tomitaro Hara, Tokyo, JP;
Takao Fukunaga, Tokyo, JP;
Takayasu Iguchi, Tokyo, JP;
Takao Kitagawa, Tokyo, JP;
Yoshitaka Yamamoto, Tokyo, JP;
Tomitaro Hara, Tokyo, JP;
Takao Fukunaga, Tokyo, JP;
Takayasu Iguchi, Tokyo, JP;
Takao Kitagawa, Tokyo, JP;
Yoshitaka Yamamoto, Tokyo, JP;
Abstract
The present invention provides a positive electrode for a non-aqueous electrolyte secondary battery in which the charge/discharge rate of a secondary battery is increased by increasing the discharge/discharge rate of the positive electrode as a result of increasing the rate of incorporation and release of lithium ions in olivine-type phosphorous complex compound particles, a non-aqueous electrolyte secondary battery provided with this positive electrode for a non-aqueous electrolyte secondary battery, and a battery module provided with this non-aqueous electrolyte secondary battery. The positive electrode for a non-aqueous electrolyte secondary battery of the present invention is a positive electrode for a non-aqueous electrolyte secondary battery containing olivine-type lithium complex compound particles having a carbonaceous film formed on the surface thereof as a positive electrode active material, in which the coverage factor of the carbonaceous film relative to the surface area of the olivine-type lithium complex compound particles is preferably 95% or more, and the packed density of the olivine-type lithium complex compound particles in this positive electrode for a non-aqueous electrolyte secondary battery is preferably 0.90 g/cmto 1.09 g/cm.