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:
Aug. 21, 2007
Filed:
Jan. 25, 2000
Il-ki Woo, Cheonan-si, KR;
Sang-won Lee, Cheonan-si, KR;
Jung-joon Park, Cheonan-si, KR;
Young-bae Roh, Cheonan-si, KR;
Kwang-sik Kim, Cheonan-si, KR;
Il-Ki Woo, Cheonan-si, KR;
Sang-Won Lee, Cheonan-si, KR;
Jung-Joon Park, Cheonan-si, KR;
Young-Bae Roh, Cheonan-si, KR;
Kwang-Sik Kim, Cheonan-si, KR;
Samsung SDI Co., Ltd., , KR;
Abstract
A lithium secondary battery exhibiting good mechanical properties and using a thin negative current collector is provided. The lithium secondary battery includes a positive electrode formed by coating lithium metal oxides on a positive current collector and a negative electrode formed by coating carbonaceous materials or SnOon a negative current collector. The negative current collector is made of a Cu-based alloy foil with a thickness of 20 μm or less and the Cu-based alloy foil includes at least one material selected from the group consisting of nickel, titanium, magnesium, tin, zinc, boron, chromium, manganese, silicone, cobalt, iron, vanadium, aluminum, zirconium, niobium, phosphorous, bismuth, lead, silver and misch metal. The lithium secondary battery further includes a separator interposed between the positive and negative electrodes and an electrolyte into which the positive and negative electrodes and the separator are immersed.