News Room

Driving to Carbon Neutral: From Single Stack to the Masses

August 28. 2023 | Product News

As vehicle propulsion moves to cleaner energy and reducing vehicle emissions, the shift from internal combustion engines (ICE) to hybrid, Battery Electric (BEV), and Hydrogen Fuel Cell (FCEV) propulsion has presented new challenges as battery manufacturers scale their products to the new vehicles. 

Ultra-Lok Clamp


Tie-Lok Clamp

IT7000 Installation Tool

Batteries for BEVs and FCEVs present a unique challenge not seen in traditional automotive design: a heavy weight distributed along the belly of the vehicle. BEV and FCEV batteries are made up of several hundred components called cells. Battery cells are stacked, pressed together, and banded with two or more ties. The ties hold the press force in place while the cell stack is inserted into the final enclosure

Securing the cells requires a fastening device capable of withstanding loop yield forces as high as 200kN (45,000 lbf). Due to these extreme forces, more and more companies are looking to the proven fastening solutions provided by BAND-IT.

BAND-IT offers two products that are currently being used by battery cell manufacturers: Ultra-Lok® and Tie-Lok® Clamping Systems. The Ultra-Lok system from BAND-IT conforms to unlike shapes while demonstrating unified symmetry and consistent installation with the use of a battery powered application tool.

The Ultra-Lok clamp from BAND-IT is sold in precut lengths with buckle, band tote with spare buckles or as a double wrapped pre-formed clamp. Each type offers various benefits for installation flexibility, retained force and application circumference. The chart below highlights the clamp performance of the Ultra-Lok system depending on the number wraps of the clamp and the number of clamps applied to the assembly. A BAND-IT product specialist is available to assist with choosing between freeend/flat band or double wrapped preformed clamps for your specific application.  

Forces are representative of lab testing. Contact BAND-IT for more information.

For bundling smaller cells requiring less retained force, the Tie-Lok system can be used to bundle batteries up to 110” in outside circumference. The installation tool provides consistent, repeatable feedback guaranteeing installation is within specification every time. 

With the process capability, cpk of 1.67 for retained force and loop tensile, make the IT8000 and the 9.5mm Tie-Lok Tie a perfect fit for battery bundling applications.

For over 85 years, BAND-IT has proven to transform customers’ unique problems into formidable solutions. Just like the stainless-steel clamps they provide, BAND-IT has evolved with the automotive market with the experience to modify standard clamping systems or develop new solutions catered to your specific needs.

Contact BAND-IT today for the performance and value alternative to other fastening methods such as welding, bolting, and customized adaptations alike.