Winding mandrel, winding machine, and battery cell winding method

Abstract

Provided are a winding mandrel, a winding machine, and a battery cell winding method. The winding mandrel includes a first connecting member and a second connecting member configured to be combined with the first connecting member. The second connecting member and the first connecting member are arranged coaxially, and length of the combined first connecting member and second connecting member is greater than length of the first connecting member or the second connecting member. Changing a structure of a winding mandrel improves stiffness of the winding mandrel and improves the efficiency and quality of a winding operation.

Dependencies are inferred from the claim text.