Patent ID: 9692029
Date: 2017-06-27
CPC Classifications: H01M,Y02E

Claim:
1. A connecting piece made of a punching sheet for conductively connecting poles of two batteries or battery cells, said connecting piece comprising: at least one base body having at least one recess; at least one insert element arranged in an inner region of the at least one recess, wherein a groove is provided on one of the insert element and the base body, said groove provided on the insert element extending along at least a portion of a circumference of the insert element, said groove provided on the base body extending along at least a portion of a circumference of an inside of the at least one recess, wherein the other one of the insert element and the base body has a protrusion which is generated by a pressing of one or both of the insert element and the base body, said protrusion form fittingly engaging in the groove of the one of the insert element and the base body so that the base body and the insert element are form fittingly connected with each other at least in regions along the circumference of the insert element, and wherein the groove has a varying depth for inhibiting relative rotation between the insert element and the base body.