Sunstone is continuously striving and innovating to provide cutting-edge solutions for the battery tab welding industry. Through continuous improvement and engineering, our welding systems can accomplish welds that many competitors cannot. Rather than accepting no for an answer, or looking for a workaround, Sunstone is willing to put the time in to find and build a Solution.

For example, for years cooper tabs in the battery welding world have been seen as impossible or not realistic. Other companies have worked toward building alloys that weld well, but have only minimal benefits over standard Nickel. Sunstone has developed a copper battery tab welding system, that can easily weld copper tabs to cylindrical cells, including lithium cells.

The Precision you need

Sunstone Welders specializes in micro welding and explicitly designs for high levels of precision. When you are working with delicate wires, thin sheets, or precise sensors, Sunstone can give you the accuracy and precision that you need.

The Power You Need

Sunstone Welders provide units with the power to accomplish a wide range of welding applications. Whether you are building one pack or a million, Sunstone Welders has a Battery welding solution for you. With the power to quickly weld many applications. Wire termination, nickel tab welding, copper tabs and many more applications.

Work With Confidence Knowing Our Reputation

Here at Sunstone, we have the privilege to work with and provide welding solutions to some of the largest and most successful companies in the Battery welding Industry including A123, Ford, Toyota, Faraday Future, Tesla, Vantage Power, and Many others.  Through our years of experience and work, we have developed and built the skills to help you with your application.

Automated Battery Welding Options:

Sunstone Offers automated welding systems that can help you to get the production that you need, with speed and quality in mind. With solutions in both nickel and copper battery tabs, Sunstone has a solution to help you automate your battery production. With the ability to custom program for multiple packs, these systems are ideal for anyone welding battery cells.

EV Copper Tab Battery Welder

Battery Welding Applications:

Battery Welding Supplies

Sunstone offers a wide variety of battery welding materials and supplies. We offer a wide range of battery tab material in both Copper and Nickel, in both precut strips, or in a spooled strip. Have an odd or custom size? We offer custom nickel tabs, call us for additional information.  We also provide Battery pack Shrinkwrap, Fish paper, and thermistors. Whatever you need for your battery welding application, Sunstone is here to help.

Benefits of Tab Welding Include:

  • Solderless Connections – The Welding process fuses the two metals done and creates a new alloy at the weld joint. This avoids the use of any solder or intermediary substance
  • Clean Weld Spots –Surface contaminated are “burned” off during the welding process to produce clean, quality welds.
  • Weld Dissimilar Metals – Whether you are working with copper, nickel, stainless steel, steel or any other metal Sunstone has a solution that can help you.
  • Small Heat Affected Zone –The most important factor of welding is to reduce the amount of heat that the cell is exposed to. During the welding process, the Heat Affected zone is very small and does not extend into the cell. This gives you better battery performance and longer cell life.


Need More Information?

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