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:
Aug. 11, 2026
Filed:
Sep. 04, 2025
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Xiaowei Zhang, Ningde, CN;
Chao Xie, Ningde, CN;
Guoda Huang, Ningde, CN;
Xiang Wu, Ningde, CN;
Yuqian Wen, Ningde, CN;
Minghao Tang, Ningde, CN;
Shengwu Zhang, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, CN;
Abstract
The present application relates to a winding needle assembly, a winding apparatus, a production device, and a method for winding electrode assemblies in the field of battery production. The winding needle assembly includes a support seat and a winding needle rotatably connected to the support seat along the needle's axial direction. The winding needle extends outward from the support seat to form multiple winding portions outside the support seat, each configured to wind electrode assemblies. The assembly enables simultaneous winding of multiple electrode assemblies to increase production efficiency. While winding, the support seat reduces the length of the unsupported portion of the needle, enhancing the rigidity and strength of the winding portion. This structure mitigates deformation of the winding part during the winding process and alleviates issues such as wrinkles, poor alignment, and limited winding speed, thereby improving the quality and efficiency of electrode assembly production.