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:
Sep. 01, 2015
Filed:
Feb. 16, 2012
Xiang-ming He, Beijing, CN;
Wei-hua Pu, Beijing, CN;
Li-chun Zhang, Beijing, CN;
Jian-guo Ren, Beijing, CN;
Jian-jun LI, Beijing, CN;
Jian Gao, Beijing, CN;
Xiang-Ming He, Beijing, CN;
Wei-Hua Pu, Beijing, CN;
Li-Chun Zhang, Beijing, CN;
Jian-Guo Ren, Beijing, CN;
Jian-Jun Li, Beijing, CN;
Jian Gao, Beijing, CN;
Tsinghua University, Beijing, CN;
HON HAI PRECISION INDUSTRY CO., LTD., New Taipei, TW;
Abstract
A method for making a separator of a lithium ion battery is provided. In the method, a modifier, and a porous membrane are provided. The modifier is a mixture of a phosphorus source having a phosphate radical, a trivalent aluminum source, and a metallic oxide provided in a liquid phase solvent. The modifier is coated on a surface of the porous membrane to form a coating layer. The coated porous membrane is dried to form a modifier layer disposed on the surface of the porous membrane.