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:
Feb. 21, 2017

Filed:

Apr. 25, 2014
Applicant:

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

Inventors:

Sang-Eun Park, Yongin-si, KR;

Young-Ugk Kim, Yongin-si, KR;

Hyun-Ki Park, Yongin-si, KR;

Chang-Su Shin, Yongin-si, KR;

Ui-Song Do, Yongin-si, KR;

Sung-Su Kim, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Gyeonggi-do, KR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/38 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01);
U.S. Cl.
CPC ...
H01M 4/366 (2013.01); H01M 4/0416 (2013.01); H01M 4/0471 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 4/386 (2013.01); H01M 4/62 (2013.01); H01M 10/052 (2013.01); Y02E 60/122 (2013.01); Y02T 10/7011 (2013.01);
Abstract

In an aspect, a negative active material, a negative electrode and a lithium battery including the negative active material, and a method of manufacturing the negative active material is provided. The negative active material includes a silicon-based active material substrate; a metal oxide nanoparticle disposed on a surface of the silicon-based active material substrate. An initial irreversible capacity of the lithium battery may be decreased and lifespan characteristics may be improved by using the negative active material.


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