41st Annual International Battery Seminar & Exhibit March 12-15, 2024 Loews Royal Pacific Resort, Orlando, Florida EWI will host an exhibit at Booth #116. Please stop by to visit with James Cruz, Business Development Manager, and learn about EWI’s recent work in batteries and electric power.
Read MoreAuto manufacturers and suppliers need a valid, reliable way to detect flaws in electric vehicle battery enclosures, or modules. EWI has developed an inexpensive testing method with demonstrated feasibility! Our team validated an EV battery testing procedure involving colorimetric chemical reagents and a reactive gas. It’s a high-resolution marking method that’s faster and clearer than […]
Read MoreConstructing lithium-ion batteries is a complex, delicate, multi-step process. Any aberration – even a slight one – at any stage can result in a faulty or hazardous battery. EWI Applications Engineer Ajay Krishnan examines the problematic aspects of lithium batteries and how they can be improved in Lithium Battery Cells: Construction and Manufacturing Challenges. You […]
Read MoreUnderstanding Lithium Batteries for Electric Vehicle Applications — a new EWI guide Lithium-ion batteries are costly, but they dominate in electric vehicle applications because they can achieve high operating voltages and very high energy efficiency while also maintaining a small size and footprint. With so much interest in Li batteries comes more R&D geared to […]
Read MoreThe Battery Show and EV Technology Expo September 13-15, 2022 Suburban Collection Showplace, Novi, Michigan EWI will be exhibiting at the 2022 Battery Show. Please stop by Booth #846 to discuss your battery challenges with Doug Myers, EWI Business Development Director.
Read MoreElectric vehicle battery pack covers have usually been made of steel or aluminum. Now there are polymer and polymer composite materials that can be used for battery boxes and contribute to both lightweighting and performance. These options are covered in Next Generation Battery Pack Housing – Materials, Processing, and Design, an article written by EWI […]
Read MoreElectric Vehicles Battery Tech USA 2022 March 14-15, 2022 Hyatt Regency Orange County, Garden Grove, California EWI is pleased to be a sponsor of EVBT USA 2022. We invite you to stop by Exhibit Booth #20 to speak with Doug Myers, Business Development Director, and find out how EWI can help improve your products. In […]
Read MoreA standard electric vehicle (EV) automotive battery can be decomposed into cell level, module level, and pack level. A cell mainly includes the anodes and cathodes, a module includes multiple cells, and a pack includes multiple modules. The three most common metal-to-metal joints in a lithium-ion battery pack are foil-to-tab, tab-to-tab, and tab-to-bus. All three […]
Read MoreThe Battery Show and EV Technology Expo September 14-16, 2021 Suburban Collection Showplace, Novi, Michigan EWI Senior Engineer Tim Frech will present “Pulsed Arc Welding of Battery Tabs and Cell Interconnections” at the Battery Show on September 14th, 3:00-3:45 pm EDT.
Read MoreWhile 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 […]
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