Separators

Thin, strong, highly porous PTFE separators engineered to improve energy density and power delivery.

GORE™ polytetrafluoroethylene (PTFE) separators (formerly EXCELLERATOR®) easily wet with both organic and aqueous electrolytes. Due to the inert properties of PTFE, they are chemically resistant to most electrolytes, for durability and long life.

These membranes are thin, yet strong. They occupy less space than other separators; therefore, energy storage devices and electrochemical double-layer capacitors (EDLCs) can achieve greater energy density and maximum power delivery. The membranes' mechanical strength also provides greater robustness when dimensional changes occur over the battery's operating life.

GORE™ separators are available for wound and prismatic cell designs and will withstand high-speed, automated manufacturing processes. GORE™ separators are stable across a wide range of temperatures (-250°C to +260°C). Cell-drying temperatures (up to 260°C) or flow soldering conditions (at 260°C) will not affect the separator's physical properties.

GORE™ separators' uniformity, tortuosity, and high filtration efficiency prevent electrode particle penetration, thus reducing shorts and manufacturing rejects. High porosity results in high ionic conductivity and leads to low equivalent resistance, faster response, and lower time constants. Applications include battery systems and EDLCs and any organic, neutral, or acidic electrolyte.