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.

Date of Patent:
May. 28, 2019

Filed:

Jun. 20, 2016
Applicant:

Samsung Sdi Co., Ltd., Yongin-si, Gyeonggi-do, KR;

Inventors:

Yeongap Kim, Yongin-si, KR;

Youngugk Kim, Yongin-si, KR;

Heeseon Choi, Yongin-si, KR;

Jiyeon Kwak, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/0525 (2010.01); H01M 4/04 (2006.01); H01M 4/58 (2010.01); H01M 4/66 (2006.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0471 (2013.01); H01M 4/386 (2013.01); H01M 4/58 (2013.01); H01M 4/624 (2013.01); H01M 4/625 (2013.01); H01M 4/661 (2013.01); H01M 10/0525 (2013.01); H01M 2004/027 (2013.01); Y02T 10/7011 (2013.01);
Abstract

Negative active materials, lithium batteries including the negative active materials, and methods of preparing the negative active materials. The negative active material includes a complex including: a silicon-based core; particles of metal nitride randomly disposed on the silicon-based core, and nanostructures disposed on at least one of the silicon-based core or the metal nitride. The negative active material may improve the electrical conductivity of a negative electrode. Accordingly, a lithium battery including the negative electrode may have improved lifetime characteristics.


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