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:
Feb. 09, 2021
Filed:
Jul. 17, 2017
Samsung Sdi Co., Ltd., Yongin-si, KR;
Young San Ko, Yongin-si, KR;
Min Jae Kim, Yongin-si, KR;
Ki Jun Kim, Yongin-si, KR;
Chae Woong Cho, Yongin-si, KR;
Jun Sik Lee, Yongin-si, KR;
Samsung SDI Co., Ltd., Yongin-si, KR;
Abstract
Disclosed is a secondary battery which can improve safety by forming a carbon coating layer and an electrode active material layer on an electrode plate such that ends of the carbon coating layer and the electrode active material layer are in different positions. As an example, the disclosed secondary battery comprises: an electrode assembly including a first electrode plate, a second electrode plate, and a separator interposed therebetween; and a case for receiving the electrode assembly, wherein the first electrode plate comprises: a first electrode collector; a carbon coating layer formed on at least one surface of the first electrode collector; and a first electrode active material layer covering at least a portion of the carbon coating layer, wherein the carbon coating layer and the electrode active material layer are formed such that the end of the carbon coating layer and the end of the first electrode active material layer are in different positions, and a protrusion is formed on at least one of the end of the carbon coating layer and the end of the first electrode active material layer.