公开(公告)号：US09972839B2

公开(公告)日：2018-05-15

申请号：US14061891

申请日：2013-10-24

Applicant: Samsung Electronics Co., Ltd.

Inventor： Min-sang Song ,  Ka-hee Shin ,  Ja-man Choi ,  Moon-seok Kwon ,  Jeong-kuk Shon ,  Jong-hyeok Park ,  Seung-sik Hwang

IPC: H01M4/48 ,  C01G23/047 ,  H01M4/485 ,  B82Y30/00 ,  H01M10/052

CPC classification number: H01M4/48 ,  B82Y30/00 ,  C01G23/047 ,  C01P2002/82 ,  C01P2004/03 ,  C01P2004/04 ,  C01P2004/13 ,  C01P2004/54 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  C01P2006/14 ,  C01P2006/16 ,  C01P2006/40 ,  H01M4/485 ,  H01M10/052

Abstract: A negative active material, a method of preparing the same, and a lithium secondary battery including the negative electrode. The negative active material includes a plurality of titanium oxide nanotubes, wherein the Raman shift of the negative active material includes a characteristic peak located at a Raman shift between about 680 cm−1 and about 750 cm−1.