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:
Oct. 21, 2014
Filed:
Jan. 18, 2012
Takeshi Sasaki, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
Takeshi Sasaki, Kyoto, JP;
Yoshihiro Katayama, Kyoto, JP;
GS Yuasa International Ltd., Kyoto-Shi, Kyoto, JP;
Abstract
An object of the present invention is to provide a negative electrode, an electrode assembly and an electric storage device. The negative electrode has a negative electrode layer containing: an active material containing an amorphous carbon particle capable of occluding and releasing at least one of an alkali metal and an alkaline earth metal; and a binder, the negative electrode layer having a plurality of pores; and the ratio S/Sof the specific surface area (S) of micropores having a pore diameter of 1 nm or larger and 3 nm or smaller in the pores to the specific surface area (S) of mesopores having a pore diameter of 20 nm or larger and 100 nm or smaller therein being 0.3 or higher and 0.9 or lower.