Düsseldorf, JUNE 2, 2025 – Envalior, a leading manufacturer of high-performance plastics, will showcase electrolyte additive and plastic solutions that significantly improve the safety, performance and lifespan of electric vehicle (EV) batteries and associated electronics at its stand, B05 (Hall 9), at the Battery Show Europe. Europe's largest trade fair and conference for battery manufacturing and technology will take place at Messe Stuttgart from June 3 to 5, 2025.
"Our innovations show that Envalior is a valuable development partner for the entire value chain of various battery types and electric powertrain systems. Our strength is not only our materials expertise and the broad range of properties in our portfolio, but above all our application expertise. This enables us to provide our partners with innovative support at all stages of development in the field of electric drives," explained Julian Haspel, Battery Systems Expert at Envalior.
Electrolyte additive Stanyl® SN-PURE: extreme purity
A key topic at the Envalior stand is the succinonitrile Stanyl® SN-PURE, a high-performance additive for electrolyte systems of lithium-ion batteries (LiB). It forms a very thin protective layer on the surface of cathodes containing cobalt oxide and nickel-manganese-cobalt (LCO resp. NMC). This increases the thermal stability of the cathodes and reduces the heat generated by chemical side reactions. Thus, the risk of thermal runaway of the LiBs is significantly reduced. The additive also ensures that the charging capacity retention and number of possible charging cycles remain high. That benefits the service life of the LiBs. Stanyl® SN-PURE has also proved to increase the electrolyte stability of sodium-ion batteries, improving their performance and service life.
As an additive, Stanyl® SN-PURE can also have advantages for solid-state batteries, which are currently on the way to being introduced to the market on a large scale. For example, it increases the ionic conductivity.
The high-performance additive is available in an extremely high purity of over 99.95% and can be processed directly. Envalior manufactures it on a large scale in Europe and can reliably supply its customers all over the world.
Pocan® B3233XHR for hybrid vehicle mounting frames: stable against thermal shocks
An eye-catcher at the Envalior stand is a mounting frame made from Pocan® B3233XHR. In mild hybrid vehicles, the frame is part of dual-clutch transmissions with an integrated electric motor and contains numerous overmolded metal inserts. The PBT compound (polybutylene terephthalate) is particularly effective in this application because of its long-term high elongation at break, hydrolysis resistance and thermal shock stability. These properties ensure that the risk of stress cracking due to frequent and rapid temperature changes is significantly reduced in component areas with overmolded metal components. The dimensionally stable construction material is also less critical in terms of electrocorrosion due to its low moisture absorption and exhibits excellent overall electrical properties.
Xytron™ G4024T for IGBT cooling frames: thermally stable, creep-resistant and hardly electrocorrosive
High-tech thermoplastics can also play a key role in the power electronics of EVs. For example, a cooling frame with integrated bipolar insulated-gate transistors (IGBT) for the power control unit (PCU) will be presented at the Envalior stand. The PCU regulates the flow of current from the battery to the electric drive. The frame is made of Xytron™ G4024T. With its thermal stability, electrical insulation properties, low tendency of electrocorrosion and excellent dimensional stability and resistance to ageing in water-glycol coolants, the polyphenylene sulphide (PPS) compound helps to ensure that the CPU unit functions reliably throughout the vehicle's entire service life.
Xytron™ G4024T for water pumps in electric sedans: extremely heat-resistant
Envalior is also presenting a water pump for electric sedans from a U.S. manufacturer. The pump housing is made of Xytron™ G4024T. This glass fiber-reinforced PPS compound is very stable in hot air, flame-retardant and hydrolytically and chemically resistant at high operating temperatures - for example in hot water-glycol mixtures. Other possible applications for the compound in EVs include impellers for water pumps as well as components for thermostats and connectors in fluid management.
The latter application examples for Xytron™ show that PPS compounds are entering numerous new areas of application in battery technology. Due to the general increase in demand for PPS, Envalior is currently investing in a new compounding plant at the Krefeld-Uerdingen site in Germany, which is scheduled to go into operation in the second half of 2025. One of the purposes of the new compounding plant is to increase the availability and delivery reliability of Xytron™, particularly for the European and U.S. markets, and to shorten delivery times.
For more information, visit Envalior at the Battery Show on its stand B05 (Hall 9) or at www.envalior.com/en-us/products.html.
Further detailed information on Envalior's materials can be found in Envalior's Material Advisor, which provides digital tools and services that customers can use to find, select and evaluate materials.
Envalior will showcase electrolyte additive and plastic solutions that significantly improve the safety, performance and lifespan of electric vehicle batteries and associated electronics at its stand at the Battery Show Europe.
Photo: Envalior
About Envalior
Envalior is a global leader in Engineering Materials with over 4,000 employees worldwide. It was established in 2023 through the merger of Lanxess Performance Materials and DSM Engineering Materials. With a long track record of customer-driven innovation, Envalior specializes in developing sustainable and high-performance material solutions. Focus markets include Automotive, New Mobility, Electronics & Electrical, and Consumer Goods. For more information, visit www.envalior.com.
Forward-Looking Statements
This company release contains certain forward-looking statements, including assumptions, opinions, expectations and views of the company or cited from third-party sources. Various known and unknown risks, uncertainties and other factors could cause the actual results, financial position, development or performance of Envalior GmbH to differ materially from the estimates expressed or implied herein. Envalior GmbH does not guarantee that the assumptions underlying such forward-looking statements are free from errors, nor does it accept any responsibility for the future accuracy of the opinions expressed in this presentation or the actual occurrence of the forecast developments. No representation or warranty (expressed or implied) is made as to, and no reliance should be placed on, any information, estimates, targets and opinions contained herein, and no liability whatsoever is accepted as to any errors, omissions or misstatements contained herein, and accordingly, no representative of Envalior GmbH or any of its affiliated companies or any of such person’s officers, directors or employees accepts any liability whatsoever arising directly or indirectly from the use of this document.
Candace Roulo
tel: +1 248 200 8919
