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400 µm Al wire on shoulder


Al ribbon connecting prismatic cells


Bonding on different levels

E-Mobilty: Battery Connections with Ultrasonic Wire Bonding

Ultrasonic wire bonding is one of the most flexible and beneficial joining technique of batteries in the production of battery packs for e-mobilty applications.

  • Current-carrying contacts
  • Contacts for cell voltage monitoring
  • Cell to cell, cell to busbar, cell to PCB, and other electrical connections
  • Electrical connection to the battery management system (BMS)
  • Fully programmable and tolerance compensating production process

Wire Bonders offer maximum flexibility with working areas from 100 x 115 mm up to 700 x 1132 mm for the battery connections of small and large sized battery packs


Automation: Manual and fully automated operation

The precise and safe handling of the battery packs in and out of the production machine plays a significant role in controlling the product quality, yield and efficiency of the production equipment. For this reason Hesse GmbH is offering standard components as well as individually adapted automation concepts.


Process Support: We support you in developing and implementing your individual process requirements for connecting your batteries. Our range of services includes:

  • Sample Bonding
  • Pre-Production Prototype
  • Design Validation Builds
  • Small Series Production
  • Module Production
  • Process Optimization

Find the suitable Wire Bonder for Your Battery Connections!

Give us a call +49 5251 1560-0 or send us your requirements with the contact form below.

Please ask us to send you our battery brochure „Battery Connections with Ultrasonic Wire Bonding“


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