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. 02, 2014
Filed:
May. 03, 2012
Xiang-ming He, Beijing, CN;
Jian-jun LI, Beijing, CN;
Li-chun Zhang, Beijing, CN;
Wei-hua Pu, Beijing, CN;
Jian Gao, Beijing, CN;
Jian-guo Ren, Beijing, CN;
Xiang-Ming He, Beijing, CN;
Jian-Jun Li, Beijing, CN;
Li-Chun Zhang, Beijing, CN;
Wei-Hua Pu, Beijing, CN;
Jian Gao, Beijing, CN;
Jian-Guo Ren, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
A method for making a modified current collector of a lithium ion battery is provided. In the method, the modifier and a metal plate 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 metal plate to form a coating layer. The coated metal plate is heat treated to transform the coating layer into a protective film formed on the surface of the metal plate.