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:
Apr. 14, 2020
Filed:
Jan. 16, 2017
Lg Chem, Ltd., Seoul, KR;
Korea Advanced Institute of Science and Technology, Daejeon, KR;
Seong Ho Lee, Daejeon, KR;
Haeshin Lee, Daejeon, KR;
Sun Jin Kim, Guri-si, KR;
Doo Kyung Yang, Daejeon, KR;
Ki Young Kwon, Daejeon, KR;
LG CHEM, LTD., Seoul, KR;
KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, Daejeon, KR;
Abstract
The present invention relates to a separator for a lithium-sulfur battery having a composite coating layer including polydopamine, and a method for preparing the same, and in particular, to a lithium-sulfur battery suppressing lithium polysulfide elution by using a composite coating layer including polydopamine and a conductive material on one surface of a separator. In the lithium-sulfur battery according to the present invention, a porous structure of polydopamine adsorbs lithium polysulfide eluted from a positive electrode preventing elution and diffusion, and by providing additional electric conductivity, a reaction site of a positive electrode active material is provided, and therefore, battery capacity and life time properties are enhanced.