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:
Apr. 02, 2019
Filed:
Jan. 18, 2017
Contemporary Amperex Technology Co., Limited, Ningde, Fujian Province, CN;
Jiandong Yang, Ningde, CN;
Wei Li, Ningde, CN;
Haizu Jin, Ningde, CN;
Yu Luo, Ningde, CN;
Yongshou Lin, Ningde, CN;
Kai Wu, Ningde, CN;
Abstract
The present application relates to an electrode sheet for Li-ion battery and a Li-ion battery including the same. The Li-ion battery includes a current collector and a diaphragm layer coated on the current collector, the current collector includes a coating region and at least one electrode tab region, the coating region is a region of the current collector coated with the diaphragm layer; the coating region is adjoined with the electrode tab region, a stress releasing region is provided at adjoining position of the coating region and at least one electrode tab region. The stress releasing region provided by the present application can reduce stress received by the diaphragm during rolling and stretching processes, which can avoid cracking of electrode tab and electrode sheet, and can improve battery cycling performance and, at the same time, can also be fused in short circuit, thereby improving safety performance of the battery.