The present invention relates to a welding inspection apparatus including a base unit configured to dispose thereon a battery module, as an object to be inspected, a positive electrode connector and a negative electrode connector connected so as to charge ...

The present specification relates to a welding quality inspection apparatus for a welding portion of a secondary battery, and provides a welding quality inspection apparatus including: a measurement unit including a first resistance measurement member meas...

A welding deviation detection device includes a pre-welding addressing mechanism (4) that can determine relative position relations between location holes (131) and a plurality of poles (121a) in a battery 1, and send the relative position relations to a w...