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:
Nov. 24, 2020
Filed:
May. 09, 2016
Samsung Sdi Co., Ltd., Yongin-si, KR;
Soojeong Lee, Yongin-si, KR;
Young-Kee Kim, Yongin-si, KR;
Dong-Hyun Shin, Yongin-si, KR;
Sun-Il Park, Yongin-si, KR;
Sujin Um, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A negative active material for a rechargeable lithium battery includes a lithium titanate compound represented by Chemical Formula 1, where R, a Raman spectrum intensity ratio (I(F2u)/I(F2g)) of an F2u peak in a range of about 200 cmto about 300 cmrelative to an F2g peak in a range of about 400 cmto about 550 cmis greater than or equal to about 0.7.LiTiMO  Chemical Formula 1 In Chemical Formula 1, −0.2≤x≤0.2, −0.3≤y≤0.3, 0≤z≤0.3, −0.3≤n≤0.3, and M is selected from Mg, Al, Ca, Sr, Cr, V, Fe, Co, Ni, Zr, Zn, Si, Y, Nb, Ga, Sn, Mo, W, Ba, La, Ce, Ag, Ta, Hf, Ru, Bi, Sb, As, and a combination thereof.