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. 17, 2020
Filed:
Jun. 16, 2016
Nissan Motor Co., Ltd., Yokohama, JP;
Masaya Arai, Kanagawa, JP;
Nobutaka Chiba, Kanagawa, JP;
Youichi Yoshioka, Kanagawa, JP;
Manabu Watanabe, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama, JP;
Abstract
A negative electrode active material containing a Si-containing alloy having a composition to be represented by Chemical Formula (1): SiSnMAlA(in Chemical Formula (1) above, M is one or two or more transition metal elements, A is an unavoidable impurity, and x, y, z, w, and a represent values of percentage by mass, where y, z, and w are 2≤y≤10, 25≤z≤35, and 0.3≤w≤3, respectively, and x and a are remainder) is used in an electrical device, providing a means capable of improving the cycle durability of the electrical device such as a lithium ion secondary battery.