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. 26, 2013
Filed:
Mar. 09, 2010
Xin Zhang, Xiamen, CN;
Haitao Xu, Beijing, CN;
Yanchuan Guo, Beijing, CN;
Qiangli Gao, Dalian, CN;
Rongfu LI, Xiamen, CN;
Ying Cui, Xiamen, CN;
Yuanfen HU, Guandong Province, CN;
Keli Chen, Yunna Province, CN;
Xin Zhang, Xiamen, CN;
Haitao Xu, Beijing, CN;
Yanchuan Guo, Beijing, CN;
Qiangli Gao, Dalian, CN;
Rongfu Li, Xiamen, CN;
Ying Cui, Xiamen, CN;
Yuanfen Hu, Guandong Province, CN;
Keli Chen, Yunna Province, CN;
Other;
Abstract
The invention relates to a composite gel polymer Li-ion battery and its producing method. The Li-ion battery cell includes a three-layer composite layer of positive electrode current collector, positive electrode active material and gel polymer electrolyte obtained by a two-layer one-step coating process; a two-layer composite layer of negative electrode current collector and negative electrode active material obtained by a single-layer coating process or a negative electrode two-layer composite layer coated with a little polyurethane adhesive(s) on the surface. The gel polymer Li-ion battery cell is obtained by laminating the resultant two composite layers. The gel polymer Li-ion battery cell has a small thickness and a compact structure, and is laminated closely and easy for preparation and industrial automatic production. The Li battery prepared by the method has a uniform structure, a low internal resistance, a high uniformity, a good unity, and a high safety.