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:
Jan. 02, 2024
Filed:
Jan. 30, 2020
Applicant:
Daido Steel Co., Ltd., Nagoya, JP;
Inventors:
Yuta Kimura, Nagoya, JP;
Hiroyuki Miyamoto, Nagoya, JP;
Assignee:
DAIDO STEEL CO., LTD., Nagoya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 10/0525 (2010.01); H01M 4/38 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/364 (2013.01); H01M 4/386 (2013.01); H01M 4/387 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01);
Abstract
The present invention relates to a negative electrode active material for a lithium-ion battery, containing a Si phase, a Si—Zr compound phase, and a Sn—X compound phase in which X is at least one element selected from the group consisting of Cu, Ti, Co, Fe, Ni, and Zr, the Sn—X compound phase has a proportion of 0.1 mass % to 18 mass % to the whole, and the Si phase has a proportion of 10 mass % to 80 mass % to the whole.