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. 22, 2022
Filed:
Jan. 05, 2018
Lg Chem, Ltd., Seoul, KR;
Kwan Woo Nam, Daejeon, KR;
Su Jin Yoon, Daejeon, KR;
Hye Jin Kwon, Daejeon, KR;
Chan Jong Kim, Daejeon, KR;
Je An Lee, Daejeon, KR;
LG ENERGY SOLUTION, LTD., Seoul, KR;
Abstract
A functional binder and a separator including the functional binder, in which the separator includes a porous polyolefin substrate and an organic-inorganic hybrid porous coating layer formed on at least one surface of the substrate and configured to include a mixture of inorganic particles and a binder compound, thus increasing binder-inorganic material adhesion and substrate-binder adhesion while preventing internal shorting from occurring by performing self-healing of damage to the separator, enhancing the adhesion of the separator to a cathode and an anode, and withstanding the dissolution of a transition metal of a cathode material. The binder contains 10 wt % or more of a hydroxyl group per molecule thereof.