ENTEK LITHIUM BATTERY SEPARATOR
ENTEK Lithium Battery Separators Receives Direct Loan from Department of Energy for the Construction of Terre Haute, Indiana Battery Separator Manufacturing Plan
Check back weekly to view the progress of ENTEK’s Terre Haute, Indiana Lithium Separator facility.
ENTEK will be the first company in North America to manufacture fully integrated wet-process, coated and uncoated, Lithium ion battery separator material By 2026, ENTEK will have completed its first major expansion of lithium-ion separator production in the US with continued expansion through 2027 totaling 1.4 billion square meters of annual production, representing the culmination of 40 years of know-how in extrusion and extraction of filled and unfilled microporous membranes.
When complete, this initial expansion will produce enough separator material to power 1.4 million electric vehicles. ENTEK’s sustainability innovations have future proofed its North American wet-process battery separator technology by the elimination of chlorinated solvents.
World leader in battery separator technology
ENTEK designs, engineers, fabricates and installs the majority of equipment required to produce Li-battery separators. This unique process developed in collaboration with World-Class engineering partners allows deployment of the first integrated base-film and coating, Giga-scale, wet-process, cast-film, Li-ion battery separator production in the USA in 2026.
Why ENTEK?
- Vertical Integration within the ENTEK Technology Holdings Group
- Global presence and experience across multiple cultures
- Unrivaled expertise in battery separator technology across a diverse range of energy systems
- Innovative battery separator process for capital cost advantages
- Rigorous, proven quality systems serving the battery industry for >40 years backed-up by real-time SPC
Featured Product
Coatings for Safety, performance and Lamination
ENTEK manufactures a broad spectrum of coated separators that include single-side, double-side and multi-layer coatings on any base material.
- PVDF or Acrylate-coated separators for use in laminated cells based on ENTEK’s patented multi-layer technology
- Alumina or Boehmite-coated separators with excellent high temperature dimensional stability, based upon ENTEK’s patented nano-structured technology (US Patent #9,847,519)
- 2,3,4 & 5-layer separator with outer adhesive functional layers and alumina or boehmite coated Polyethylene base separator for laminated cells often used in xEV applications
EP
Traditional separator used in Li primary and Li-ion cells
High mechanical integrity
Optimized for consumer applications
EPH
Separator choice for higher power applications
High power discharge
Optimized for high-rate portable devices
EPX
Base material used for coated separators
Ultra-low impedance
Optimized for e-mobility
