Advanced Energy (Page 14)

While ultrasonic and laser welding are both effective methods for battery foil welding, neither can be monitored in process. So when a battery batch is defective, the problem is not identified until after material, time, and money as been spent. EWI recently tested a resistance spot welding technique that uses a capacitive discharge power supply...

By Henry Cialone President & CEO, EWI I experienced my first hydrogen economy in the early 1980s. I had just started working at Battelle, and the emerging hydrogen science seemed to provide an answer to many of the world’s energy questions. Within a few years, however, people stopped asking those questions. Or lost interest in...

The integrity and reliability of joints in lithium-ion battery packs is critically important to manufacturers in industries ranging from automotive to consumer electronics to aerospace. If battery packs fail, it can result in more than just a faulty product -- it can actually be a threat to public safety. Many welding techniques are used to...