Celanese - The chemistry inside innovation^™

APPLICATION REQUIREMENTS

Battery Cell Holders (Cylindrical) & Frames (Pouch)

• Electrical Insulation
• Dimensional Stability
• Low CLTE
• Hydrolysis Resistance (Coolant and Electrolyte)
• Thermal Management

Battery Module (Housings, Covers & Trays) & Pack (Top Cover, Trays)

• Hydrolysis Resistance (Coolant and Electrolyte)
• Impact Strength
• Tensile Modulus
• Dimensional Stability

Lithium-ion Battery Separator

• High Mechanical Strength
• High Permeability, High Porosity
• Pore Distribution and Pore Size Uniformity
• Excellent Processability

Lead Acid Battery Separator

• Cost-Effective
• Allows Rapid Fabrication of a Pocket
• Consistent Quality
• High Puncture Strength
• Resistance to Sulfuric Acid and Oxidation

RECOMMENDED CELANESE MATERIALS

• CoolPoly® D-Series TCP
• Celstran® LFRT
• Frianyl® XT PPA
• Celanyl® PA / Frianyl® PA / Ecomid® PA
• Fortron® PPS
• GUR® UHMW-PE

Battery applications like module end plates require chemically-resistant materials such as flame retardant (V0) Fortron® polyphenylene sulfide which enables reduced wall thickness and reduced weight, while maintaining tensile strengths of at least 160 MPa.

CoolPoly® thermally conductive plastics enable heat management in cell holders and frames.

For housings, covers and trays for an EV battery module, Celstran® long fiber reinforced thermoplastics offer the ideal solution to replace aluminum. The stainless-steel fiber equipped Celstran® compounds further provide EMI shielding to deliver significant weight reduction and freedom of design.

Ideal for battery separators, our range of GUR® ultra-high molecular weight polyethylene separates the positive and negative electrodes in Lithium-ion batteries allowing the flow of lithium ions due to its porosity. These membranes also act as a fire and explosion hazard safety mechanism by separating the reactive materials and closing the pores when the battery reaches elevated temperatures.