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:
Jul. 23, 2019
Filed:
May. 24, 2017
Grst International Limited, Hong Kong, HK;
Sing Ming Tony Wong, Hong Kong, HK;
Sing Hung Eric Wong, Hong Kong, HK;
Peihua Shen, Guangdong, CN;
Yuen Hung, Hong Kong, HK;
Kam Piu Ho, Hong Kong, HK;
Ranshi Wang, Hong Kong, HK;
GRST International Limited, Hong Kong, HK;
Abstract
Provided herein is a separator used for an electrochemical device such as a lithium-ion battery. The separator disclosed herein comprises a porous base material, and a protective porous layer coated on one or both surfaces of the porous base material disclosed herein, wherein the protective porous layer comprises an organic binder and an inorganic filler, and wherein the inorganic filler comprises a whisker-type material selected from the group consisting of AlO, SiO, TiO, ZrO, BaO, ZnO, CaCO, TiN, AlN, MTiO, KO.nTiO, NaO.mTiO, and combinations thereof, wherein x is 1 or 2; M is Ba, Sr or Ca; n is 1, 2, 4, 6 or 8; and m is 3 or 6. Also provided herein is a lithium-ion battery including the separator disclosed herein. The separator disclosed herein is excellent in terms of safety, ion permeability, and cycle characteristics.