SEMCORP produces wet-process and dry-process lithium-ion battery separators featuring thinly coated ceramic layers, PVDF, and aramid coatings for enhanced thermal stability and safety. Ultra-thin variants down to 4 µm improve energy density. The company holds 520+ patents and implements semi-solid coated separators for 10% higher capacity retention at –30 °C. It is expanding into solid-state and semi-solid electrolyte technologies via joint ventures (e.g., with Beijing WELION) and partners with equipment manufacturers for high-precision production targeting 17.5 billion m² capacity by 2025.
Key products include wet-process and dry-process lithium-ion battery separators with ultra-thin (4 µm) formats, ceramic-coated, PVDF-coated, and aramid-coated separators. SEMCORP offers semi-solid electrolyte membranes and is developing solid-state battery components.
Project Burlington is a 950,000 sq ft EV battery coating facility under construction in Sidney, Ohio since mid-2024, creating 1,200 jobs. A Hungarian plant established in late 2024 will begin operations in early 2025. In January 2025, a JV with WELION launched China’s first commercial semi-solid electrolyte membrane line. The Jiangxi facility was upgraded with Celgard to optimize dry-process output, and its lab gained CNAS accreditation in 2022.
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