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. 07, 2023
Filed:
Mar. 13, 2020
Jiangsu Contemporary Amperex Technology Limited, Liyang, CN;
Hu Xu, Liyang, CN;
Kai Wu, Liyang, CN;
Miaomiao Ren, Liyang, CN;
Rui Yang, Liyang, CN;
Long Xu, Liyang, CN;
Youlei Lai, Liyang, CN;
Yongshou Lin, Liyang, CN;
JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED, Changzhou, CN;
Abstract
The present disclosure provides an electrode assembly and a secondary battery. The electrode assembly includes a first electrode plate, a second electrode plate and a separator. The first electrode plate, the second electrode plate and the separator are wound to a flat structure, and the flat structure comprises a main region and corner regions, the corner regions are provided at two ends of the main region along a width direction of the main region. The first electrode plate and the second electrode plate each are wound to turns. A gap is provided between two adjacent turns of the first electrode plate, the gap includes a first gap and a second gap. The first gap corresponds to the corner region in position, the second gap corresponds to the main region in position, and a dimension of the first gap is larger than a dimension of the second gap.