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:
Apr. 04, 2017
Filed:
Mar. 07, 2014
Sango Co., Ltd, Miyoshi-shi, JP;
SANGO CO., LTD., Miyoshi-shi, JP;
Abstract
A negative electrode material for a lithium secondary battery, having one of iron foil and iron-base alloy foil, wherein the one of iron foil and iron-base alloy foil which has a surface profile having a plurality of concave shaped hollows formed by heat treating with laser beam irradiation and the surface is a surface which contacts with an electrolyte solution for a lithium secondary battery. There is further provided a lithium secondary battery including a negative electrode of the negative electrode material, a positive electrode using a lithium compound as an active material, an electrolyte between the negative electrode and the positive electrode, and a separator dividing the negative electrode and the positive electrode from each other.