Home Products Clad Metals Copper Aluminum Dovetail Clad Metal Strip DOVETAIL CLAD® FOR LITHIUM-ION BATTERY CONNECTIONS Copper Aluminum Dovetail Clad® is a breakthrough technology for joining copper and aluminum side-by-side in long continuous master coils. These coils can easily be stamped and formed to create bus bars or lead tabs, enabling high-volume, low-cost laser assembly especially fitted to automotive format lithium-ion battery packs for HEV’s, PHEV’s and EV’s. Our patented cladding process achieves an excellent metallurgical bond by combining extreme reductions in cross-sectional area and thermal diffusion to create a controlled formation of a thin, ductile intermetallic compound resulting in a robust copper-aluminum dovetail joint which matches the strength and fatigue toughness of the aluminum alloy. BUS BAR AND LEAD TAB MATERIALS FOR COOLER, SMALLER LITHIUM-ION BATTERY PACKS Dovetail Clad battery bus bar and lead tab materials are superior in mechanical, electrical and thermal performance over ultrasonic or bolted attachments, immediately benefitting your lithium-ion battery pack design, assembly and product lifecycle: Lowest electrical resistance Cu-Al interface results cooler pack temperatures Highest life-testing reliability in mechanical and fatigue strength Low height allows for more compact module designs Narrow Cu-Al joint width - 4mm max - for optimal design flexibility PRODUCT AVAILABILITY Aluminum Alloys: 1050, 1100, 1145 Copper Alloys: C10200 with or without Nickel or Tin plating Thickness: 0.1mm to 2.0mm Width: Up to 165mm Based on nearly 50 years of expertise in cladding aluminum to copper for high-reliability automotive lead frame applications, Materion Technical Materials has taken their state-of-the-art metal cladding technology to a new level to meet the challenges facing every lithium-ion battery cell and pack designer: how to join copper and aluminum in your battery pack. Contact Materion Technical Materials to learn how our Copper Aluminum Dovetail Clad® technology can be applied to your unique battery pack design and assembly challenges.