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:
Sep. 03, 2019
Filed:
Nov. 10, 2015
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Nobutaka Chiba, Kanagawa, JP;
Youichi Yoshioka, Kanagawa, JP;
Tomohiro Kaburagi, Kanagawa, JP;
Manabu Watanabe, Kanagawa, JP;
Masaya Arai, Kanagawa, JP;
Nissan Motor Co., Ltd., Yokohama-shi, Kanagawa, JP;
Abstract
A negative electrode active material which has a ternary alloy composition represented by Si—Sn-M (M is one or two or more transition metal elements) and has a microstructure which has a first phase (silicide phase) having a silicide of a transition metal as a main component and a second phase partially containing Sn and having amorphous or low crystalline silicon as a main component, and further has partially a plurality of independent first phases and partially a eutectic structure of the first phase and the second phase is used for an electric device. The negative electrode active material improves cycle durability of an electric device such as a lithium ion secondary battery.