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:
Nov. 01, 2016
Filed:
Dec. 22, 2009
Xin Teng, Guangdong, CN;
Wei He, Guangdong, CN;
Ming He, Guangdong, CN;
Ruyu Rao, Guangdong, CN;
Bin Xiao, Guangdong, CN;
Qiming Pan, Guangdong, CN;
Shenzhen Bak Battery Co., LTD., Shenzhen, CN;
Abstract
Provided are a positive electrode material for lithium ion batteries and a process for preparing the same. The positive electrode material for lithium ion batteries comprises a composite positive electrode material consists of LiCoOand an auxiliary positive electrode material, the general formula of the auxiliary positive electrode material is LiCoNiMnO, wherein 0<x<0.9, 0<y<0.9, 0<x+y<0.9, and the LiCoOis a modified LiCoOcoated with an AlOfilm. The overcharge performance of the batteries can be significantly increased and the use amount of the overcharge additive can be reduced by using the positive electrode material so as to its improve the cycle performance of the batteries and improve the anti-overcharge safety in the special applications and the charging conditions.