Polyurethane Foam
PORON® EVExtend® Battery Pad Material
Overview
PORON® EVExtend® is a family of polyurethane battery pad materials engineered to meet the demanding sealing and cushioning needs of EV and HEV applications. Designed for modern lithium-ion batteries—including pouch, prismatic, and solid-state cells—this material delivers exceptional long-term durability and maintains consistent support even as cells expand and contract.
Features
- Flat Compression Force Deflection (CFD) Curve — provides a consistent pushback force throughout battery life.
- Tight Compression Set Control — maximum of 5% at 70 °C (per ASTM D3574), ensuring retained dimensions and performance.
- PORON EVExtend 43:
- Thickness: 0.039″ to 0.118″ (1–3 mm)
- Density: 7 to 20 lb/ft³ (112–320 kg/m³)
- PORON EVExtend 71:
- Higher density: 20 to 25 lb/ft³ (320–400 kg/m³)
- Suitable for rigid prismatic and solid-state cell applications
Benefits
- Consistent cell stack pressure—designers can meet both beginning-of-life and end-of-life pressure requirements despite cell expansion.
- Durable over battery lifespan—material maintains its original thickness and mechanical properties under long-term stress and temperature.
- Low-density option (EVExtend 43)—offers excellent conformability for flexible pouch cell configurations.
- Higher-density option (EVExtend 71)—delivers consistent high-pressure support for prismatic or solid-state cells with superior compression integrity.
Applications
- Battery pads and cushions for EV and HEV battery modules
- Compression gap-fillers between pouch, prismatic, or solid-state cells
- Pressure-balanced support layers to prolong battery life and performance
Why Choose PORON® EVExtend®?
- Provides reliable pressure management throughout battery life
- Maintains tight performance tolerances under thermal and mechanical stress
- Tailored density options accommodate diverse cell formats and energy densities
- Engineered for long-term durability—even in demanding automotive battery environments
Data Sheets
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