Hollow fiber membrane cartridge, humidifier for fuel cell, and fuel cell containing the same
The hollow fiber membrane cartridge with a polymer resin composition addresses the issues of heat and hydrolysis resistance, ensuring the durability and stability of fuel cell humidifiers and cells by using PPE modified with HIPS or other materials, maintaining mechanical integrity under high-temperature and high-humidity conditions.
Patent Information
- Application Number
- JP2025502451
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-08-04
- Filing Date
- 2023-07-27
- Publication Date
- 2026-05-25
- Estimated Expiration
- 2043-07-27
AI Technical Summary
Existing hollow fiber membrane humidifiers for fuel cells lack sufficient heat resistance and hydrolysis resistance, leading to potential delamination and failure under high-temperature and high-humidity conditions, which affects mechanical properties and durability.
A hollow fiber membrane cartridge with an inner case made from a polymer resin composition comprising polyphenylene ether (PPE) modified with polystyrene-butadiene copolymer (HIPS) or other materials like polyphenyl sulfone (PPSU), polysulfone (PSU), polyether ether ketone (PEEK), and polyarylate (PAR), ensuring a heat distortion temperature of 120°C or higher, moisture absorption of 1% or less, and a coefficient of thermal expansion of 100 × 10^-6 mm/mm/°C or less, thereby enhancing mechanical stability and hydrolysis resistance.
The solution provides a hollow fiber membrane cartridge with excellent heat resistance, hydrolysis resistance, and mechanical stability, preventing delamination and failure, thus ensuring the longevity and reliability of the fuel cell humidifier and fuel cell system.