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:
Aug. 15, 2017
Filed:
May. 10, 2012
Keiichi Hayashi, Kariya, JP;
Manabu Miyoshi, Kariya, JP;
Takayuki Hirose, Kariya, JP;
Hitotoshi Murase, Kariya, JP;
Hideyuki Morimoto, Kiryu, JP;
Shin-ichi Tobishima, Kiryu, JP;
Keiichi Hayashi, Kariya, JP;
Manabu Miyoshi, Kariya, JP;
Takayuki Hirose, Kariya, JP;
Hitotoshi Murase, Kariya, JP;
Hideyuki Morimoto, Kiryu, JP;
Shin-ichi Tobishima, Kiryu, JP;
NATIONAL UNIVERSITY CORPORATION GUNMA UNIVERSITY, Maebashi-shi, Gunma, JP;
Abstract
Provided is a negative-electrode active material, which is capable of constituting a lithium ion secondary cell exhibiting excellent cell characteristics. The negative-electrode active material for a lithium ion secondary cell of the invention includes a mixed material of silicon oxide particles composed of silicon oxide and rod-shaped iron oxide particles composed of iron oxide. It is preferable to use iron oxide particles having a plurality of pores in a surface, and an electrode reaction is effectively carried out.