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:
Oct. 06, 2020
Filed:
Mar. 15, 2017
Lg Chem, Ltd., Seoul, KR;
Hyuk-Su Kim, Daejeon, KR;
LG Chem, Ltd., , KR;
Abstract
Provided is an electrode for a secondary battery having an electrode current collector either surface or both surfaces of which are coated with two active material layers, the electrode including: an electrode current collector; a first layer of active material coated on the current collector; and a second layer of active material coated on the first layer of active material, wherein a plurality of craters are formed in the first layer of active material and the craters are filled with active material of the second layer. A method for manufacturing the electrode for a secondary battery is also provided, and the method includes carrying out laser ablation on the first layer of active material. According to the present disclosure, it is possible to solve the problem of detachment of the active material layers, particularly the second layer of active material, during the process for manufacturing the electrode.