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:
Apr. 12, 2016

Filed:

Aug. 08, 2011
Applicants:

Jae-myung Kim, Yongin-si, KR;

Kyu-nam Joo, Yongin-si, KR;

Tae-sik Kim, Yongin-si, KR;

Deok-hyun Kim, Yongin-si, KR;

Inventors:

Jae-Myung Kim, Yongin-si, KR;

Kyu-Nam Joo, Yongin-si, KR;

Tae-Sik Kim, Yongin-si, KR;

Deok-Hyun Kim, Yongin-si, KR;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2010.01); B82Y 30/00 (2011.01); H01M 4/134 (2010.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/48 (2010.01);
U.S. Cl.
CPC ...
B82Y 30/00 (2013.01); H01M 4/134 (2013.01); H01M 4/366 (2013.01); H01M 4/38 (2013.01); H01M 4/483 (2013.01); Y02E 60/122 (2013.01); Y02P 70/54 (2015.11);
Abstract

A rechargeable lithium battery that includes a negative electrode including a silicon-based negative active material; a positive electrode including a positive active material being capable of intercalating and deintercalating lithium; and a non-aqueous electrolyte, wherein the silicon-based negative active material includes a SiO(0<x<2) core including Si grains and a continuous or discontinuous coating layer including Ag, the coating layer being disposed on the core.


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