Celgard has a strong, active, and growing global patent portfolio and continuously advances separator design and functionality through significant research and development.
Celgard® CoolStack™ Separators for Low Temperature Adhesion:
Innovative adhesive coating formulation and technique that provides strong adhesion to electrodes at lower (< 60°C) temperatures
Enables cell manufacturers to utilize high speed, low energy consumption "Stack / Z-fold" and "Press" cell assembly processes and realize significant savings in time and yield*
Adhesive coating layer enhances wettability and lowers ER (electrical resistance) enabling longer battery life
*One heat press equipment manufacturer recorded at least 50 seconds in stack press time savings when using Celgard® CoolStack™ separators at 0.7-7 MPa vs. standard heat activated adhesive coated separators. They also estimated 2-4% in CAPEX savings could be achieved due to efficiencies in the cell assembly process.
Adhesive particles in Celgard® CoolStack™ Separators penetrate electrode pores, fusing with the cathode binder to further optimize the electrode-separator interface and improve the ionic conductivity, electrochemical stability and cycling of the cell
Contact Us to learn more about Celgard® CoolStack™ Separators for Low Temperature Adhesion.
Improve electrolyte filling and soaking speeds, enhance long-term electrolyte retention and decrease cell scrap
Enhance battery cycle life
Enable low temperature battery applications
Initial testing shows an average decrease in electrolyte-separator contact angle as well as in separator electrical resistance by up to 30% relative to other polyolefin membranes.
Control 1 and 2 separators are representative of ceramic coated and non-coated polyolefin (wet/dry) microporous membranes.
Contact Us to learn more about Celgard® DuraWet™ Enhanced Wettability Separators.
Enable high energy density designs, increased hipot yield and capacity retention with no electrolyte dry-out
Next-generation Celgard® PermaWet™ Permanently Wettable Separators are instantly wetted by polar electrolytes such as propylene carbonate.
Contact Us to learn more about Celgard® PermaWet™ Permanently Wettable Separators.
CUTTING EDGE TECHNOLOGY RESEARCH:
Celgard® CyclePlus™ Cycle Improved Ceramic Coated Separators mitigate the effects of contamination and cathode transition metal dissolution to increase capacity retention and cycling uniformity at module level.
Internal metal contamination tests using single-layer pouch cells show significant improvement over traditional ceramic coated separators.
Third Party Test Conditions: Contamination metal used: Proprietary to 3rd party tester. Cathode chemistry: NMC532 2 Ah cylindrical OCV-1: 24 h storage at RT OCV-2: 36 h storage at 45C + 24 h storage at RT
Contact Us to learn more about Celgard® CyclePlus™ Cycle Improved Ceramic Coated Separators.
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