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:
Jan. 20, 2009
Filed:
Oct. 08, 2004
Keiko Matsubara, Yokohama, JP;
Toshiaki Tsuno, Yokohama, JP;
Akira Takamuka, Yokohama, JP;
Sung-soo Kim, Suwon-si, KR;
Bok-hwan Jung, Suwon-si, KR;
Keiko Matsubara, Yokohama, JP;
Toshiaki Tsuno, Yokohama, JP;
Akira Takamuka, Yokohama, JP;
Sung-Soo Kim, Suwon-si, KR;
Bok-Hwan Jung, Suwon-si, KR;
Samsung SDI Co., Ltd., Suwon-si, KR;
Abstract
Disclosed is an electrode material for a lithium secondary battery, a lithium secondary battery comprising the same, and a method for preparing the electrode material for a lithium secondary battery. The electrode material for a lithium secondary battery includes Si as a principal component, wherein the interplanar spacing of an Si(111) surface between 3.15 Å and 3.20 Å using X-ray diffraction. This is achieve by first alloying Si with an element selected from the group consisting of Al, B, P, Ge, Sn, Pb, Ni, Co, Mn, Mo, Cr, V, Cu, Fe, Ni, W, Ti, Zn, alkali metals, alkaline earth metals, and combinations thereof, and then eluting X from the resulting alloy.