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. 15, 2023
Filed:
Sep. 08, 2022
Samsung Sdi Co., Ltd., Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
A negative electrode for a lithium secondary battery comprises a current collector and a negative electrode active material layer formed on the current collector, wherein the negative electrode active material layer includes a first negative electrode active material and a first binder, and a second active material layer formed on the first active material layer and including a second negative electrode active material and a second binder, a content of the first binder is greater than that of the second binder, a loading level of the negative electrode active material layer is 10 mg/cmto 30 mg/cm, a loading level of the first active material layer is 4 mg/cmto 25 mg/cm, a loading level of the second active material layer is 4 mg/cmto 25 mg/cm, and a loading level of the second active material layer is equal to or higher than that of the first active material layer.