Nilar International AB (publ) (NILAR B, NILRF) develops, manufactures, and markets nickel-metal hydride (NiMH) batteries and related energy storage systems for stationary applications, including residential, commercial, industrial, and utility-scale infrastructure; its core products comprise Nilar ReOx branded battery modules and packs in configurations such as 96V, 108V, 120V, and 144V, battery management systems, and ReOx technology optimized for electrical energy storage (ESS) supporting renewable integration, solar and wind power storage, EV charging, smart grids, and backup power. The company operates primarily in Sweden, Germany, the Netherlands, and other European markets, with production powered by 100% renewable energy at its facility in Gävle and sales extending internationally. Founded in 2000 (with key industrialization from 2011) and headquartered in Täby, Sweden, Nilar focuses on sustainable, safe, water-based electrolyte batteries emphasizing recyclability and performance in energy transition applications. In November 2023, the company filed for bankruptcy due to liquidity constraints amid high commodity prices, market slowdowns in Sweden from lower electricity prices and elevated interest rates, and challenges scaling commercialization despite prior European Investment Bank financing and a Nasdaq First North IPO; subsequently, its end-to-end battery production line and process development assets were acquired by zinc-ion battery firm Enerpoly to support a new 100MWh manufacturing facility.